This file describes changes in recent versions of SLURM. It primarily documents those changes that are of interest to users and admins. * Changes in Slurm 13.12.0pre2 ============================== -- Added "JobAcctGatherParams" configuration parameter. Value of "NoShare" disables accounting for shared memory. -- Added fields to "scontrol show job" output: boards_per_node, sockets_per_board, ntasks_per_node, ntasks_per_board, ntasks_per_socket, ntasks_per_core, and nice. -- Add squeue output format options for job command and working directory (%o and %Z respectively). -- Add stdin/out/err to sview job output. * Changes in Slurm 13.12.0pre1 ============================== -- sview - improve scalability -- Add task pointer to the task_post_term() function in task plugins. The terminating task's PID is available in task->pid. -- Move select/cray to select/alps -- Defer sending SIGKILL signal to processes while core dump in progress. -- Added JobContainerPlugin configuration parameter and plugin infrastructure. -- Added partition configuration parameters AllowAccounts, AllowQOS, DenyAccounts and DenyQOS. -- The rpmbuild option for a cray system with ALPS has changed from %_with_cray to %_with_cray_alps. -- The log file timestamp format can now be selected at runtime via the LogTimeFormat configuration option. See the slurm.conf and slurmdbd.conf man pages for details. -- Added switch/generic plugin to a job's convey network topology. -- BLUEGENE - If block is in 'D' state or has more cnodes in error than MaxBlockInError set the job wait reason appropriately. -- API use: Generate an error return rather than fatal error and exit if the configuraiton file is absent or invalid. This will permit Slurm APIs to be more reliably used by other programs. -- Add support for load-based scheduling, allocate jobs to nodes with the largest number of available CPUs. Added SchedulingParameters paramter of "CR_LLN" and partition parameter of "LLN=yes|no". -- Added job_info() and step_info() functions to the gres plugins to extract plugin specific fields from the job's or step's GRES data structure. -- Added sbatch --signal option of "B:" to signal the batch shell rather than only the spawned job steps. -- Added sinfo and squeue format option of "%all" to print all fields available for the data type with a vertical bar separating each field. -- Add mechanism for job_submit plugin to generate error message for srun, salloc or sbatch to stderr. New argument added to job_submit function in the plugin. -- Add StdIn, StdOut, and StdErr paths to job information dumped with "scontrol show job". -- Permit Slurm administrator to submit a batch job as any user. -- Set a job's RLIMIT_AS limit based upon it's memory limit and VsizeFactor configuration value. -- Remove Postgres plugins -- Make jobacct_gather/cgroup work correctly and also make all jobacct_gather plugins more maintainable. -- Proctrack/pgid - Add support for proctrack_p_plugin_get_pids() function. -- Sched/backfill - Change default max_job_bf parameter from 50 to 100. -- Added -I|--item-extract option to sh5util to extract data item from series. * Changes in Slurm 2.6.2 ======================== -- Fix issue with reconfig and GrpCPURunMins -- Fix of wrong node/job state problem after reconfig -- Allow users who are coordinators update their own limits in the accounts they are coordinators over. * Changes in Slurm 2.6.1 ======================== -- slurmdbd - Allow job derived ec and comments to be modified by non-root users. -- Fix issue with job name being truncated to 24 chars when sending a mail message. -- Fix minor issues with spec file, missing files and including files erroneously on a bluegene system. -- sacct - fix --name and --partition options when using accounting_storage/filetxt. -- squeue - Remove extra whitespace of default printout. -- BGQ - added head ppcfloor as an include dir when building. -- BGQ - Better debug messages in runjob_mux plugin. -- PMI2 Updated the Makefile.am to build a versioned library. -- CRAY - Fix srun --mem_bind=local option with launch/aprun. -- PMI2 Corrected buffer size computation in the pmi2_api.c module. -- GRES accounting data wrong in database: gres_alloc, gres_req, and gres_used fields were empty if the job was not started immediately. -- Fix sbatch and srun task count logic when --ntasks-per-node specified, but no explicit task count. -- Corrected the hdf5 profile user guide and the acct_gather.conf documentation. -- IPMI - Fix Math bug getting new wattage. -- Corrected the AcctGatherProfileType documentation in slurm.conf -- Corrected the sh5util program to print the header in the csv file only once, set the debug messages at debug() level, make the argument check case insensitive and avoid printing duplicate \n. -- If cannot collect energy values send message to the controller to drain the node and log error slurmd log file. -- Handle complete removal of CPURunMins time at the end of the job instead of at multifactor poll. -- sview - Add missing debug_flag options. -- PGSQL - Notes about Postgres functionality being removed in the next version of Slurm. -- MYSQL - fix issue when rolling up usage and events happened when a cluster was down (slurmctld not running) during that time period. -- sched/wiki2 - Insure that Moab gets current CPU load information. -- Prevent infinite loop in parsing configuration if including file containing one blank line. -- Fix pack and unpack between 2.6 and 2.5. -- Fix job state recovery logic in which a job's accounting frequency was not set. This would result in a value of 65534 seconds being used (the equivalent of NO_VAL in uint16_t), which could result in the job being requeued or aborted. -- Validate a job's accounting frequency at submission time rather than waiting for it's initiation to possibly fail. -- Fix CPURunMins if a job is requeued from a failed launch. -- Fix in accounting_storage/filetxt to correct start times which sometimes could end up before the job started. -- Fix issue with potentially referencing past an array in parse_time() -- CRAY - fix issue with accelerators on a cray when parsing BASIL 1.3 XML. -- Fix issue with a 2.5 slurmstepd locking up when talking to a 2.6 slurmd. * Changes in Slurm 2.6.0 ======================== -- Fix it so bluegene and serial systems don't get warnings over new NODEDATA enum. -- When a job is aborted send a message for any tasks that have completed. -- Correction to memory per CPU calculation on system with threads and allocating cores or sockets. -- Requeue batch job if it's node reboots (used to abort the job). -- Enlarge maximum size of srun's hostlist file. -- IPMI - Fix first poll to get correct consumed_energy for a step. -- Correction to job state recovery logic that could result in assert failure. -- Record partial step accounting record if allocated nodes fail abnormally. -- Accounting - fix issue where PrivateData=jobs or users could potentially show information to users that had no associations on the system. -- Make PrivateData in slurmdbd.conf case insensitive. -- sacct/sstat - Add format option ConsumedEnergyRaw to print full energy values. * Changes in Slurm 2.6.0rc2 =========================== -- HDF5 - Fix issue with Ubuntu where HDF5 development headers are overwritten by the parallel versions thus making it so we need handle both cases. -- ACCT_GATHER - handle suspending correctly for polling threads. -- Make SLURM_DISTRIBUTION env var hold both types of distribution if specified. -- Remove hardcoded /usr/local from slurm.spec. -- Modify slurmctld locking to improve performance under heavy load with very large numbers of batch job submissions or job cancellations. -- sstat - Fix issue where if -j wasn't given allow last argument to be checked for as the job/step id. -- IPMI - fix adjustment on poll when using EnergyIPMICalcAdjustment. * Changes in Slurm 2.6.0rc1 =========================== -- Added helper script for launching symmetric and MIC-only MPI tasks within SLURM (in contribs/mic/mpirun-mic). -- Change maximum delay for state save from 2 secs to 5 secs. Make timeout configurable at build time by defining SAVE_MAX_WAIT. -- Modify slurmctld data structure locking to interleave read and write locks rather than always favor write locks over read locks. -- Added sacct format option of "ALL" to print all fields. -- Deprecate the SchedulerParameters value of "interval" use "bf_interval" instead as documented. -- Add acct_gather_profile/hdf5 to profile jobs with hdf5 -- Added MaxCPUsPerNode partition configuration parameter. This can be especially useful to schedule systems with GPUs. -- Permit "scontrol reboot_node" for nodes in MAINT reservation. -- Added "PriorityFlags" value of "SMALL_RELATIVE_TO_TIME". If set, the job's size component will be based upon not the job size alone, but the job's size divided by it's time limit. -- Added sbatch option "--ignore-pbs" to ignore "#PBS" options in the batch script. -- Rename slurm_step_ctx_params_t field from "mem_per_cpu" to "pn_min_memory". Job step now accepts memory specification in either per-cpu or per-node basis. -- Add ability to specify host repitition count in the srun hostfile (e.g. "host1*2" is equivalent to "host1,host1"). * Changes in Slurm 2.6.0pre3 ============================ -- Add milliseconds to default log message header (both RFC 5424 and ISO 8601 time formats). Disable milliseconds logging using the configure parameter "--disable-log-time-msec". Default time format changes to ISO 8601 (without time zone information). Specify "--enable-rfc5424time" to restore the time zone information. -- Add username (%u) to the filename pattern in the batch script. -- Added options for front end nodes of AllowGroups, AllowUsers, DenyGroups, and DenyUsers. -- Fix sched/backfill logic to initiate jobs with maximum time limit over the partition limit, but the minimum time limit permits it to start. -- gres/gpu - Fix for gres.conf file with multiple files on a single line using a slurm expression (e.g. "File=/dev/nvidia[0-1]"). -- Replaced ipmi.conf with generic acct_gather.conf file for all acct_gather plugins. For those doing development to use this follow the model set forth in the acct_gather_energy_ipmi plugin. -- Added more options to update a step's information -- Add DebugFlags=ThreadID which will print the thread id of the calling thread. -- CRAY - Allocate whole node (CPUs) in reservation despite what the user requests. We have found any srun/aprun afterwards will work on a subset of resources. * Changes in Slurm 2.6.0pre2 ============================ -- Do not purge inactive interactive jobs that lack a port to ping (added for MR+ operation). -- Advanced reservations with hostname and core counts now supports asymetric reservations (e.g. specific different core count for each node). -- Added slurmctld/dynalloc plugin for MapReduce+ support. -- Added "DynAllocPort" configuration parameter. -- Added partition paramter of SelectTypeParameters to override system-wide value. -- Added cr_type to partition_info data structure. -- Added allocated memory to node information available (within the existing select_nodeinfo field of the node_info_t data structure). Added Allocated Memory to node information displayed by sview and scontrol commands. -- Make sched/backfill the default scheduling plugin rather than sched/builtin (FIFO). -- Added support for a job having different priorities in different partitions. -- Added new SchedulerParameters configuration parameter of "bf_continue" which permits the backfill scheduler to continue considering jobs for backfill scheduling after yielding locks even if new jobs have been submitted. This can result in lower priority jobs from being backfill scheduled instead of newly arrived higher priority jobs, but will permit more queued jobs to be considered for backfill scheduling. -- Added support to purge reservation records from accounting. -- Cray - Add support for Basil 1.3 * Changes in SLURM 2.6.0pre1 ============================ -- Add "state" field to job step information reported by scontrol. -- Notify srun to retry step creation upon completion of other job steps rather than polling. This results in much faster throughput for job step execution with --exclusive option. -- Added "ResvEpilog" and "ResvProlog" configuration parameters to execute a program at the beginning and end of each reservation. -- Added "slurm_load_job_user" function. This is a variation of "slurm_load_jobs", but accepts a user ID argument, potentially resulting in substantial performance improvement for "squeue --user=ID" -- Added "slurm_load_node_single" function. This is a variation of "slurm_load_nodes", but accepts a node name argument, potentially resulting in substantial performance improvement for "sinfo --nodes=NAME". -- Added "HealthCheckNodeState" configuration parameter identify node states on which HealthCheckProgram should be executed. -- Remove sacct --dump --formatted-dump options which were deprecated in 2.5. -- Added support for job arrays (phase 1 of effort). See "man sbatch" option -a/--array for details. -- Add new AccountStorageEnforce options of 'nojobs' and 'nosteps' which will allow the use of accounting features like associations, qos and limits but not keep track of jobs or steps in accounting. -- Cray - Add new cray.conf parameter of "AlpsEngine" to specify the communication protocol to be used for ALPS/BASIL. -- select/cons_res plugin: Correction to CPU allocation count logic in for cores without hyperthreading. -- Added new SelectTypeParameter value of "CR_ALLOCATE_FULL_SOCKET". -- Added PriorityFlags value of "TICKET_BASED" and merged priority/multifactor2 plugin into priority/multifactor plugin. -- Add "KeepAliveTime" configuration parameter controlling how long sockets used for srun/slurmstepd communications are kept alive after disconnect. -- Added SLURM_SUBMIT_HOST to salloc, sbatch and srun job environment. -- Added SLURM_ARRAY_TASK_ID to environment of job array. -- Added squeue --array/-r option to optimize output for job arrays. -- Added "SlurmctldPlugstack" configuration parameter for generic stack of slurmctld daemon plugins. -- Removed contribs/arrayrun tool. Use native support for job arrays. -- Modify default installation locations for RPMs to match "make install": _prefix /usr/local _slurm_sysconfdir %{_prefix}/etc/slurm _mandir %{_prefix}/share/man _infodir %{_prefix}/share/info -- Add acct_gather_energy/ipmi which works off freeipmi for energy gathering * Changes in Slurm 2.5.8 ======================== -- Fix for slurmctld segfault on NULL front-end reason field. -- Avoid gres step allocation errors when a job shrinks in size due to either down nodes or explicit resizing. Generated slurmctld errors of this type: "step_test ... gres_bit_alloc is NULL" -- Fix bug that would leak memory and over-write the AllowGroups field if on "scontrol reconfig" when AllowNodes is manually changed using scontrol. -- Get html/man files to install in correct places with rpms. -- Remove --program-prefix from spec file since it appears to be added by default and appeared to break other things. -- Updated the automake min version in autogen.sh to be correct. -- Select/cons_res - Correct total CPU count allocated to a job with --exclusive and --cpus-per-task options -- switch/nrt - Don't allocate network resources unless job step has 2+ nodes. -- select/cons_res - Avoid extraneous "oversubscribe" error messages. * Changes in Slurm 2.5.7 ======================== -- Fix for linking to the select/cray plugin to not give warning about undefined variable. -- Add missing symbols to the xlator.h -- Avoid placing pending jobs in AdminHold state due to backfill scheduler interactions with advanced reservation. -- Accounting - make average by task not cpu. -- CRAY - Change logging of transient ALPS errors from error() to debug(). -- POE - Correct logic to support poe option "-euidevice sn_all" and "-euidevice sn_single". -- Accounting - Fix minor initialization error. -- POE - Correct logic to support srun network instances count with POE. -- POE - With the srun --launch-cmd option, report proper task count when the --cpus-per-task option is used without the --ntasks option. -- POE - Fix logic binding tasks to CPUs. -- sview - Fix race condition where new information could of slipped past the node tab and we didn't notice. -- Accounting - Fix an invalid memory read when slurmctld sends data about start job to slurmdbd. -- If a prolog or epilog failure occurs, drain the node rather than setting it down and killing all of its jobs. -- Priority/multifactor - Avoid underflow in half-life calculation. -- POE - pack missing variable to allow fanout (more than 32 nodes) -- Prevent clearing reason field for pending jobs. This bug was introduced in v2.5.5 (see "Reject job at submit time ..."). -- BGQ - Fix issue with preemption on sub-block jobs where a job would kill all preemptable jobs on the midplane instead of just the ones it needed to. -- switch/nrt - Validate dynamic window allocation size. -- BGQ - When --geo is requested do not impose the default conn_types. -- CRAY - Support CLE 4.2.0 -- RebootNode logic - Defers (rather than forgets) reboot request with job running on the node within a reservation. -- switch/nrt - Correct network_id use logic. Correct support for user sn_all and sn_single options. -- sched/backfill - Modify logic to reduce overhead under heavy load. -- Fix job step allocation with --exclusive and --hostlist option. -- Select/cons_res - Fix bug resulting in error of "cons_res: sync loop not progressing, holding job #" -- checkpoint/blcr - Reset max_nodes from zero to NO_VAL on job restart. -- launch/poe - Fix for hostlist file support with repeated host names. -- priority/multifactor2 - Prevent possible divide by zero. -- srun - Don't check for executable if --test-only flag is used. -- energy - On a single node only use the last task for gathering energy. Since we don't currently track energy usage per task (only per step). Otherwise we get double the energy. * Changes in Slurm 2.5.6 ======================== -- Gres fix for requeued jobs. -- Gres accounting - Fix regression in 2.5.5 for keeping track of gres requested and allocated. * Changes in Slurm 2.5.5 ======================== -- Fix for sacctmgr add qos to handle the 'flags' option. -- Export SLURM_ environment variables from sbatch, even if "--export" option does not explicitly list them. -- If node is in more than one partition, correct counting of allocated CPUs. -- If step requests more CPUs than possible in specified node count of job allocation then return ESLURM_TOO_MANY_REQUESTED_CPUS rather than ESLURM_NODES_BUSY and retrying. -- CRAY - Fix SLURM_TASKS_PER_NODE to be set correctly. -- Accounting - more checks for strings with a possible `'` in it. -- sreport - Fix by adding planned down time to utilization reports. -- Do not report an error when sstat identifies job steps terminated during its execution, but log using debug type message. -- Select/cons_res - Permit node removed from job by going down to be returned to service and re-used by another job. -- Select/cons_res - Tighter packing of job allocations on sockets. -- SlurmDBD - fix to allow user root along with the slurm user to register a cluster. -- Select/cons_res - Fix for support of consecutive node option. -- Select/cray - Modify build to enable direct use of libslurm library. -- Bug fixes related to job step allocation logic. -- Cray - Disable enforcement of MaxTasksPerNode, which is not applicable with launch/aprun. -- Accounting - When rolling up data from past usage ignore "idle" time from a reservation when it has the "Ignore_Jobs" flag set. Since jobs could run outside of the reservation in it's nodes without this you could have double time. -- Accounting - Minor fix to avoid reuse of variable erroneously. -- Reject job at submit time if the node count is invalid. Previously such a job submitted to a DOWN partition would be queued. -- Purge vestigial job scripts when the slurmd cold starts or slurmstepd terminates abnormally. -- Add support for FreeBSD. -- Add sanity check for NULL cluster names trying to register. -- BGQ - Push action 'D' info to scontrol for admins. -- Reset a job's reason from PartitionDown when the partition is set up. -- BGQ - Handle issue where blocks would have a pending job on them and while it was free cnodes would go into software error and kill the job. -- BGQ - Fix issue where if for some reason we are freeing a block with a pending job on it we don't kill the job. -- BGQ - Fix race condition were a job could of been removed from a block without it still existing there. This is extremely rare. -- BGQ - Fix for when a step completes in Slurm before the runjob_mux notifies the slurmctld there were software errors on some nodes. -- BGQ - Fix issue on state recover if block states are not around and when reading in state from DB2 we find a block that can't be created. You can now do a clean start to rid the bad block. -- Modify slurmdbd to retransmit to slurmctld daemon if it is not responding. -- BLUEGENE - Fix issue where when doing backfill preemptable jobs were never looked at to determine eligibility of backfillable job. -- Cray/BlueGene - Disable srun --pty option unless LaunchType=launch/slurm. -- CRAY - Fix sanity check for systems with more than 32 cores per node. -- CRAY - Remove other objects from MySQL query that are available from the XML. -- BLUEGENE - Set the geometry of a job when a block is picked and the job isn't a sub-block job. -- Cray - avoid check of macro versions of CLE for version 5.0. -- CRAY - Fix memory issue with reading in the cray.conf file. -- CRAY - If hostlist is given with srun make sure the node count is the same as the hosts given. -- CRAY - If task count specified, but no tasks-per-node, then set the tasks per node in the BASIL reservation request. -- CRAY - fix issue with --mem option not giving correct amount of memory per cpu. -- CRAY - Fix if srun --mem is given outside an allocation to set the APRUN_DEFAULT_MEMORY env var for aprun. This scenario will not display the option when used with --launch-cmd. -- Change sview to use GMutex instead of GStaticMutex -- CRAY - set APRUN_DEFAULT_MEMROY instead of CRAY_AUTO_APRUN_OPTIONS -- sview - fix issue where if a partition was completely in one state the cpu count would be reflected correctly. -- BGQ - fix for handling half rack system in STATIC of OVERLAP mode to implicitly create full system block. -- CRAY - Dynamically create BASIL XML buffer to resize as needed. -- Fix checking if QOS limit MaxCPUMinsPJ is set along with DenyOnLimit to deny the job instead of holding it. -- Make sure on systems that use a different launcher than launch/slurm not to attempt to signal tasks on the frontend node. -- Cray - when a step is requested count other steps running on nodes in the allocation as taking up the entire node instead of just part of the node allocated. And always enforce exclusive on a step request. -- Cray - display correct nodelist, node/cpu count on steps. * Changes in Slurm 2.5.4 ======================== -- Fix bug in PrologSlurmctld use that would block job steps until node responds. -- CRAY - If a partition has MinNodes=0 and a batch job doesn't request nodes put the allocation to 1 instead of 0 which prevents the allocation to happen. -- Better debug when the database is down and using the --cluster option in the user commands. -- When asking for job states with sacct, default to 'now' instead of midnight of the current day. -- Fix for handling a test-only job or immediate job that fails while being built. -- Comment out all of the logic in the job_submit/defaults plugin. The logic is only an example and not meant for actual use. -- Eliminate configuration file 4096 character line limitation. -- More robust logic for tree message forward -- BGQ - When cnodes fail in a timeout fashion correctly look up parent midplane. -- Correct sinfo "%c" (node's CPU count) output value for Bluegene systems. -- Backfill - Responsive improvements for systems with large numbers of jobs (>5000) and using the SchedulerParameters option bf_max_job_user. -- slurmstepd: ensure that IO redirection openings from/to files correctly handle interruption -- BGQ - Able to handle when midplanes go into Hardware::SoftwareFailure -- GRES - Correct tracking of specific resources used after slurmctld restart. Counts would previously go negative as jobs terminate and decrement from a base value of zero. -- Fix for priority/multifactor2 plugin to not assert when configured with --enable-debug. -- Select/cons_res - If the job request specified --ntasks-per-socket and the allocation using is cores, then pack the tasks onto the sockets up to the specified value. -- BGQ - If a cnode goes into an 'error' state and the block containing the cnode does not have a job running on it do not resume the block. -- BGQ - Handle blocks that don't free themselves in a reasonable time better. -- BGQ - Fix for signaling steps when allocation ends before step. -- Fix for backfill scheduling logic with job preemption; starts more jobs. -- xcgroup - remove bugs with EINTR management in write calls -- jobacct_gather - fix total values to not always == the max values. -- Fix for handling node registration messages from older versions without energy data. -- BGQ - Allow user to request full dimensional mesh. -- sdiag command - Correction to jobs started value reported. -- Prevent slurmctld assert when invalid change to reservation with running jobs is made. -- BGQ - If signal is NODE_FAIL allow forward even if job is completing and timeout in the runjob_mux trying to send in this situation. -- BGQ - More robust checking for correct node, task, and ntasks-per-node options in srun, and push that logic to salloc and sbatch. -- GRES topology bug in core selection logic fixed. -- Fix to handle init.d script for querying status and not return 1 on success. * Changes in SLURM 2.5.3 ======================== -- Gres/gpu plugin - If no GPUs requested, set CUDA_VISIBLE_DEVICES=NoDevFiles. This bug was introduced in 2.5.2 for the case where a GPU count was configured, but without device files. -- task/affinity plugin - Fix bug in CPU masks for some processors. -- Modify sacct command to get format from SACCT_FORMAT environment variable. -- BGQ - Changed order of library inclusions and fixed incorrect declaration to compile correctly on newer compilers -- Fix for not building sview if glib exists on a system but not the gtk libs. -- BGQ - Fix for handling a job cleanup on a small block if the job has long since left the system. -- Fix race condition in job dependency logic which can result in invalid memory reference. * Changes in SLURM 2.5.2 ======================== -- Fix advanced reservation recovery logic when upgrading from version 2.4. -- BLUEGENE - fix for QOS/Association node limits. -- Add missing "safe" flag from print of AccountStorageEnforce option. -- Fix logic to optimize GRES topology with respect to allocated CPUs. -- Add job_submit/all_partitions plugin to set a job's default partition to ALL available partitions in the cluster. -- Modify switch/nrt logic to permit build without libnrt.so library. -- Handle srun task launch failure without duplicate error messages or abort. -- Fix bug in QoS limits enforcement when slurmctld restarts and user not yet added to the QOS list. -- Fix issue where sjstat and sjobexitmod was installed in 2 different RPMs. -- Fix for job request of multiple partitions in which some partitions lack nodes with required features. -- Permit a job to use a QOS they do not have access to if an administrator manually set the job's QOS (previously the job would be rejected). -- Make more variables available to job_submit/lua plugin: slurm.MEM_PER_CPU, slurm.NO_VAL, etc. -- Fix topology/tree logic when nodes defined in slurm.conf get re-ordered. -- In select/cons_res, correct logic to allocate whole sockets to jobs. Work by Magnus Jonsson, Umea University. -- In select/cons_res, correct logic when job removed from only some nodes. -- Avoid apparent kernel bug in 2.6.32 which apparently is solved in at least 3.5.0. This avoids a stack overflow when running jobs on more than 120k nodes. -- BLUEGENE - If we made a block that isn't runnable because of a overlapping block, destroy it correctly. -- Switch/nrt - Dynamically load libnrt.so from within the plugin as needed. This eliminates the need for libnrt.so on the head node. -- BLUEGENE - Fix in reservation logic that could cause abort. * Changes in SLURM 2.5.1 ======================== -- Correction to hostlist sorting for hostnames that contain two numeric components and the first numeric component has various sizes (e.g. "rack9blade1" should come before "rack10blade1") -- BGQ - Only poll on initialized blocks instead of calling getBlocks on each block independently. -- Fix of task/affinity plugin logic for Power7 processors having hyper- threading disabled (cpu mask has gaps). -- Fix of job priority ordering with sched/builtin and priority/multifactor. Patch from Chris Read. -- CRAY - Fix for setting up the aprun for a large job (+2000 nodes). -- Fix for race condition related to compute node boot resulting in node being set down with reason of "Node unexpectedly rebooted" -- RAPL - Fix for handling errors when opening msr files. -- BGQ - Fix for salloc/sbatch to do the correct allocation when asking for -N1 -n#. -- BGQ - in emulation make it so we can pretend to run large jobs (>64k nodes) -- BLUEGENE - Correct method to update conn_type of a job. -- BLUEGENE - Fix issue with preemption when needing to preempt multiple jobs to make one job run. -- Fixed issue where if an srun dies inside of an allocation abnormally it would of also killed the allocation. -- FRONTEND - fixed issue where if a systems nodes weren't defined in the slurm.conf with NodeAddr's signals going to a step could be handled incorrectly. -- If sched/backfill starts a job with a QOS having NO_RESERVE and not job time limit, start it with the partition time limit (or one year if the partition has no time limit) rather than NO_VAL (140 year time limit); -- Alter hostlist logic to allocate large grid dynamically instead of on stack. -- Change RPC version checks to support version 2.5 slurmctld with version 2.4 slurmd daemons. -- Correct core reservation logic for use with select/serial plugin. -- Exit scontrol command on stdin EOF. -- Disable job --exclusive option with select/serial plugin. * Changes in SLURM 2.5.0 ======================== -- Add DenyOnLimit flag for QOS to deny jobs at submission time if they request resources that reach a 'Max' limit. -- Permit SlurmUser or operator to change QOS of non-pending jobs (e.g. running jobs). -- BGQ - move initial poll to beginning of realtime interaction, which will also cause it to run if the realtime server ever goes away. * Changes in SLURM 2.5.0-rc2 ============================ -- Modify sbcast logic to survive slurmd daemon restart while file a transmission is in progress. -- Add retry logic to munge encode/decode calls. This is needed if the munge deamon is under very heavy load (e.g. with 1000 slurmd daemons per compute node). -- Add launch and acct_gather_energy plugins to RPMs. -- Restore support for srun "--mpi=list" option. -- CRAY - Introduce step accounting for a Cray. -- Modify srun to abandon I/O 60 seconds after the last task ends. Otherwise an aborted slurmstepd can cause the srun process to hang indefinitely. -- ENERGY - RAPL - alter code to close open files (and only open them once where needed) -- If the PrologSlurmctld fails, then requeue the job an indefinite number of times instead of only one time. * Changes in SLURM 2.5.0-rc1 ============================ -- Added Prolog and Epilog Guide (web page). Based upon work by Jason Sollom, Cray Inc. and used by permission. -- Restore gang scheduling functionality. Preemptor was not being scheduled. Fix for bugzilla #3. -- Add "cpu_load" to node information. Populate CPULOAD in node information reported to Moab cluster manager. -- Preempt jobs only when insufficient idle resources exist to start job, regardless of the node weight. -- Added priority/multifactor2 plugin based upon ticket distribution system. Work by Janne Blomqvist, Aalto University. -- Add SLURM_NODELIST to environment variables available to Prolog and Epilog. -- Permit reservations to allow or deny access by account and/or user. -- Add ReconfigFlags value of KeepPartState. See "man slurm.conf" for details. -- Modify the task/cgroup plugin adding a task_pre_launch_priv function and move slurmstepd outside of the step's cgroup. Work by Matthieu Hautreux. -- Intel MIC processor support added using gres/mic plugin. BIG thanks to Olli-Pekka Lehto, CSC-IT Center for Science Ltd. -- Accounting - Change empty jobacctinfo structs to not actually be used instead of putting 0's into the database we put NO_VALS and have sacct figure out jobacct_gather wasn't used. -- Cray - Prevent calling basil_confirm more than once per job using a flag. -- Fix bug with topology/tree and job with min-max node count. Now try to get max node count rather than minimizing leaf switches used. -- Add AccountingStorageEnforce=safe option to provide method to avoid jobs launching that wouldn't be able to run to completion because of a GrpCPUMins limit. -- Add support for RFC 5424 timestamps in logfiles. Disable with configuration option of "--disable-rfc5424time". By Janne Blomqvist, Aalto University. -- CRAY - Replace srun.pl with launch/aprun plugin to use srun to wrap the aprun process instead of a perl script. -- srun - Rename --runjob-opts to --launcher-opts to be used on systems other than BGQ. -- Added new DebugFlags - Energy for AcctGatherEnergy plugins. -- start deprecation of sacct --dump --fdump -- BGQ - added --verbose=OFF when srun --quiet is used -- Added acct_gather_energy/rapl plugin to record power consumption by job. Work by Yiannis Georgiou, Martin Perry, et. al., Bull * Changes in SLURM 2.5.0.pre3 ============================= -- Add Google search to all web pages. -- Add sinfo -T option to print reservation information. Work by Bill Brophy, Bull. -- Force slurmd exit after 2 minute wait, even if threads are hung. -- Change node_req field in struct job_resources from 8 to 32 bits so we can run more than 256 jobs per node. -- sched/backfill: Improve accuracy of expected job start with respect to reservations. -- sinfo partition field size will be set the the length of the longest partition name by default. -- Make it so the parse_time will return a valid 0 if given epoch time and set errno == ESLURM_INVALID_TIME_VALUE on error instead. -- Correct srun --no-alloc logic when node count exceeds node list or task task count is not a multiple of the node count. Work by Hongjia Cao, NUDT. -- Completed integration with IBM Parallel Environment including POE and IBM's NRT switch library. * Changes in SLURM 2.5.0.pre2 ============================= -- When running with multiple slurmd daemons per node, enable specifying a range of ports on a single line of the node configuration in slurm.conf. -- Add reservation flag of Part_Nodes to allocate all nodes in a partition to a reservation and automatically change the reservation when nodes are added to or removed from the reservation. Based upon work by Bill Brophy, Bull. -- Add support for advanced reservation for specific cores rather than whole nodes. Current limiations: homogeneous cluster, nodes idle when reservation created, and no more than one reservation per node. Code is still under development. Work by Alejandro Lucero Palau, et. al, BSC. -- Add DebugFlag of Switch to log switch plugin details. -- Correct job node_cnt value in job completion plugin when job fails due to down node. Previously was too low by one. -- Add new srun option --cpu-freq to enable user control over the job's CPU frequency and thus it's power consumption. NOTE: cpu frequency is not currently preserved for jobs being suspended and later resumed. Work by Don Albert, Bull. -- Add node configuration information about "boards" and optimize task placement on minimum number of boards. Work by Rod Schultz, Bull. * Changes in SLURM 2.5.0.pre1 ============================= -- Add new output to "scontrol show configuration" of LicensesUsed. Output is "name:used/total" -- Changed jobacct_gather plugin infrastructure to be cleaner and easier to maintain. -- Change license option count separator from "*" to ":" for consistency with the gres option (e.g. "--licenses=foo:2 --gres=gpu:2"). The "*" will still be accepted, but is no longer documented. -- Permit more than 100 jobs to be scheduled per node (new limit is 250 jobs). -- Restructure of srun code to allow outside programs to utilize existing logic. * Changes in SLURM 2.4.6 ======================== -- Correct WillRun authentication logic when issued for non-job owner. -- BGQ - fix memory leak -- BGQ - Fix to check block for action 'D' if it also has nodes in error. * Changes in SLURM 2.4.5 ======================== -- Cray - On job kill requeust, send SIGCONT, SIGTERM, wait KillWait and send SIGKILL. Previously just sent SIGKILL to tasks. -- BGQ - Fix issue when running srun outside of an allocation and only specifying the number of tasks and not the number of nodes. -- BGQ - validate correct ntasks_per_node -- BGQ - when srun -Q is given make runjob be quiet -- Modify use of OOM (out of memory protection) for Linux 2.6.36 kernel or later. NOTE: If you were setting the environment variable SLURMSTEPD_OOM_ADJ=-17, it should be set to -1000 for Linux 2.6.36 kernel or later. -- BGQ - Fix job step timeout actually happen when done from within an allocation. -- Reset node MAINT state flag when a reservation's nodes or flags change. -- Accounting - Fix issue where QOS usage was being zeroed out on a slurmctld restart. -- BGQ - Add 64 tasks per node as a valid option for srun when used with overcommit. -- BLUEGENE - With Dynamic layout mode - Fix issue where if a larger block was already in error and isn't deallocating and underlying hardware goes bad one could get overlapping blocks in error making the code assert when a new job request comes in. -- BGQ - handle pending actions on a block better when trying to deallocate it. -- Accounting - Fixed issue where if nodenames have changed on a system and you query against that with -N and -E you will get all jobs during that time instead of only the ones running on -N. -- BGP - Fix for HTC mode -- Accounting - If a job start message fails to the SlurmDBD reset the db_inx so it gets sent again. This isn't a major problem since the start will happen when the job ends, but this does make things cleaner. -- If an salloc is waiting for an allocation to happen and is canceled by the user mark the state canceled instead of completed. -- Fix issue in accounting if a user puts a '\' in their job name. -- Accounting - Fix for if asking for users or accounts that were deleted with associations get the deleted associations as well. -- BGQ - Handle shared blocks that need to be removed and have jobs running on them. This should only happen in extreme conditions. -- Fix inconsistency for hostlists that have more than 1 range. -- BGQ - Add mutex around recovery for the Real Time server to avoid hitting DB2 so hard. -- BGQ - If an allocation exists on a block that has a 'D' action on it fail job on future step creation attempts. * Changes in SLURM 2.4.4 ======================== -- BGQ - minor fix to make build work in emulated mode. -- BGQ - Fix if large block goes into error and the next highest priority jobs are planning on using the block. Previously it would fail those jobs erroneously. -- BGQ - Fix issue when a cnode going to an error (not SoftwareError) state with a job running or trying to run on it. -- Execute slurm_spank_job_epilog when there is no system Epilog configured. -- Fix for srun --test-only to work correctly with timelimits -- BGQ - If a job goes away while still trying to free it up in the database, and the job is running on a small block make sure we free up the correct node count. -- BGQ - Logic added to make sure a job has finished on a block before it is purged from the system if its front-end node goes down. -- Modify strigger so that a filter option of "--user=0" is supported. -- Correct --mem-per-cpu logic for core or socket allocations with multiple threads per core. -- Fix for older < glibc 2.4 systems to use euidaccess() instead of eaccess(). -- BLUEGENE - Do not alter a pending job's node count when changing it's partition. -- BGQ - Add functionality to make it so we track the actions on a block. This is needed for when a free request is added to a block but there are jobs finishing up so we don't start new jobs on the block since they will fail on start. -- BGQ - Fixed InactiveLimit to work correctly to avoid scenarios where a user's pending allocation was started with srun and then for some reason the slurmctld was brought down and while it was down the srun was removed. -- Fixed InactiveLimit math to work correctly -- BGQ - Add logic to make it so blocks can't use a midplane with a nodeboard in error for passthrough. -- BGQ - Make it so if a nodeboard goes in error any block using that midplane for passthrough gets removed on a dynamic system. -- BGQ - Fix for printing realtime server debug correctly. -- BGQ - Cleaner handling of cnode failures when reported through the runjob interface instead of through the normal method. -- smap - spread node information across multiple lines for larger systems. -- Cray - Defer salloc until after PrologSlurmctld completes. -- Correction to slurmdbd communications failure handling logic, incorrect error codes returned in some cases. * Changes in SLURM 2.4.3 ======================== -- Accounting - Fix so complete 32 bit numbers can be put in for a priority. -- cgroups - fix if initial directory is non-existent SLURM creates it correctly. Before the errno wasn't being checked correctly -- BGQ - fixed srun when only requesting a task count and not a node count to operate the same way salloc or sbatch did and assign a task per cpu by default instead of task per node. -- Fix salloc --gid to work correctly. Reported by Brian Gilmer -- BGQ - fix smap to set the correct default MloaderImage -- BLUEGENE - updated documentation. -- Close the batch job's environment file when it contains no data to avoid leaking file descriptors. -- Fix sbcast's credential to last till the end of a job instead of the previous 20 minute time limit. The previous behavior would fail for large files 20 minutes into the transfer. -- Return ESLURM_NODES_BUSY rather than ESLURM_NODE_NOT_AVAIL error on job submit when required nodes are up, but completing a job or in exclusive job allocation. -- Add HWLOC_FLAGS so linking to libslurm works correctly -- BGQ - If using backfill and a shared block is running at least one job and a job comes through backfill and can fit on the block without ending jobs don't set an end_time for the running jobs since they don't need to end to start the job. -- Initialize bind_verbose when using task/cgroup. -- BGQ - Fix for handling backfill much better when sharing blocks. -- BGQ - Fix for making small blocks on first pass if not sharing blocks. -- BLUEGENE - Remove force of default conn_type instead of leaving NAV when none are requested. The Block allocator sets it up temporarily so this isn't needed. -- BLUEGENE - Fix deadlock issue when dealing with bad hardware if using static blocks. -- Fix to mysql plugin during rollup to only query suspended table when jobs reported some suspended time. -- Fix compile with glibc 2.16 (Kacper Kowalik) -- BGQ - fix for deadlock where a block has error on it and all jobs running on it are preemptable by scheduling job. -- proctrack/cgroup: Exclude internal threads from "scontrol list pids". Patch from Matthieu Hautreux, CEA. -- Memory leak fixed for select/linear when preempting jobs. -- Fix if updating begin time of a job to update the eligible time in accounting as well. -- BGQ - make it so you can signal steps when signaling the job allocation. -- BGQ - Remove extra overhead if a large block has many cnode failures. -- Priority/Multifactor - Fix issue with age factor when a job is estimated to start in the future but is able to run now. -- CRAY - update to work with ALPS 5.1 -- BGQ - Handle issue of speed and mutexes when polling instead of using the realtime server. -- BGQ - Fix minor sorting issue with sview when sorting by midplanes. -- Accounting - Fix for handling per user max node/cpus limits on a QOS correctly for current job. -- Update documentation for -/+= when updating a reservation's users/accounts/flags -- Update pam module to work if using aliases on nodes instead of actual host names. -- Correction to task layout logic in select/cons_res for job with minimum and maximum node count. -- BGQ - Put final poll after realtime comes back into service to avoid having the realtime server go down over and over again while waiting for the poll to finish. -- task/cgroup/memory - ensure that ConstrainSwapSpace=no is correctly handled. Work by Matthieu Hautreux, CEA. -- CRAY - Fix for sacct -N option to work correctly -- CRAY - Update documentation to describe installation from rpm instead or previous piecemeal method. -- Fix sacct to work with QOS' that have previously been deleted. -- Added all available limits to the output of sacctmgr list qos * Changes in SLURM 2.4.2 ======================== -- BLUEGENE - Correct potential deadlock issue when hardware goes bad and there are jobs running on that hardware. -- If job is submitted to more than one partition, it's partition pointer can be set to an invalid value. This can result in the count of CPUs allocated on a node being bad, resulting in over- or under-allocation of its CPUs. Patch by Carles Fenoy, BSC. -- Fix bug in task layout with select/cons_res plugin and --ntasks-per-node option. Patch by Martin Perry, Bull. -- BLUEGENE - remove race condition where if a block is removed while waiting for a job to finish on it the number of unused cpus wasn't updated correctly. -- BGQ - make sure we have a valid block when creating or finishing a step allocation. -- BLUEGENE - If a large block (> 1 midplane) is in error and underlying hardware is marked bad remove the larger block and create a block over just the bad hardware making the other hardware available to run on. -- BLUEGENE - Handle job completion correctly if an admin removes a block where other blocks on an overlapping midplane are running jobs. -- BLUEGENE - correctly remove running jobs when freeing a block. -- BGQ - correct logic to place multiple (< 1 midplane) steps inside a multi midplane block allocation. -- BGQ - Make it possible for a multi midplane allocation to run on more than 1 midplane but not the entire allocation. -- BGL - Fix for syncing users on block from Tim Wickberg -- Fix initialization of protocol_version for some messages to make sure it is always set when sending or receiving a message. -- Reset backfilled job counter only when explicitly cleared using scontrol. Patch from Alejandro Lucero Palau, BSC. -- BLUEGENE - Fix for handling blocks when a larger block will not free and while it is attempting to free underlying hardware is marked in error making small blocks overlapping with the freeing block. This only applies to dynamic layout mode. -- Cray and BlueGene - Do not treat lack of usable front-end nodes when slurmctld deamon starts as a fatal error. Also preserve correct front-end node for jobs when there is more than one front-end node and the slurmctld daemon restarts. -- Correct parsing of srun/sbatch input/output/error file names so that only the name "none" is mapped to /dev/null and not any file name starting with "none" (e.g. "none.o"). -- BGQ - added version string to the load of the runjob_mux plugin to verify the current plugin has been loaded when using runjob_mux_refresh_config -- CGROUPS - Use system mount/umount function calls instead of doing fork exec of mount/umount from Janne Blomqvist. -- BLUEGENE - correct start time setup when no jobs are blocking the way from Mark Nelson -- Fixed sacct --state=S query to return information about suspended jobs current or in the past. -- FRONTEND - Made error warning more apparent if a frontend node isn't configured correctly. -- BGQ - update documentation about runjob_mux_refresh_config which works correctly as of IBM driver V1R1M1 efix 008. * Changes in SLURM 2.4.1 ======================== -- Fix bug for job state change from 2.3 -> 2.4 job state can now be preserved correctly when transitioning. This also applies for 2.4.0 -> 2.4.1, no state will be lost. (Thanks to Carles Fenoy) * Changes in SLURM 2.4.0 ======================== -- Cray - Improve support for zero compute note resource allocations. Partition used can now be configured with no nodes nodes. -- BGQ - make it so srun -i works correctly. -- Fix parse_uint32/16 to complain if a non-digit is given. -- Add SUBMITHOST to job state passed to Moab vial sched/wiki2. Patch by Jon Bringhurst (LANL). -- BGQ - Fix issue when running with AllowSubBlockAllocations=Yes without compiling with --enable-debug -- Modify scontrol to require "-dd" option to report batch job's script. Patch from Don Albert, Bull. -- Modify SchedulerParamters option to match documentation: "bf_res=" changed to "bf_resolution=". Patch from Rod Schultz, Bull. -- Fix bug that clears job pending reason field. Patch fron Don Lipari, LLNL. -- In etc/init.d/slurm move check for scontrol after sourcing /etc/sysconfig/slurm. Patch from Andy Wettstein, University of Chicago. -- Fix in scheduling logic that can delay jobs with min/max node counts. -- BGQ - fix issue where if a step uses the entire allocation and then the next step in the allocation only uses part of the allocation it gets the correct cnodes. -- BGQ - Fix checking for IO on a block with new IBM driver V1R1M1 previous function didn't always work correctly. -- BGQ - Fix issue when a nodeboard goes down and you want to combine blocks to make a larger small block and are running with sub-blocks. -- BLUEGENE - Better logic for making small blocks around bad nodeboard/card. -- BGQ - When using an old IBM driver cnodes that go into error because of a job kill timeout aren't always reported to the system. This is now handled by the runjob_mux plugin. -- BGQ - Added information on how to setup the runjob_mux to run as SlurmUser. -- Improve memory consumption on step layouts with high task count. -- BGQ - quiter debug when the real time server comes back but there are still messages we find when we poll but haven't given it back to the real time yet. -- BGQ - fix for if a request comes in smaller than the smallest block and we must use a small block instead of a shared midplane block. -- Fix issues on large jobs (>64k tasks) to have the correct counter type when packing the step layout structure. -- BGQ - fix issue where if a user was asking for tasks and ntasks-per-node but not node count the node count is correctly figured out. -- Move logic to always use the 1st alphanumeric node as the batch host for batch jobs. -- BLUEGENE - fix race condition where if a nodeboard/card goes down at the same time a block is destroyed and that block just happens to be the smallest overlapping block over the bad hardware. -- Fix bug when querying accounting looking for a job node size. -- BLUEGENE - fix possible race condition if cleaning up a block and the removal of the job on the block failed. -- BLUEGENE - fix issue if a cable was in an error state make it so we can check if a block is still makable if the cable wasn't in error. -- Put nodes names in alphabetic order in node table. -- If preempted job should have a grace time and preempt mode is not cancel but job is going to be canceled because it is interactive or other reason it now receives the grace time. -- BGQ - Modified documents to explain new plugin_flags needed in bg.properties in order for the runjob_mux to run correctly. -- BGQ - change linking from libslurm.o to libslurmhelper.la to avoid warning. * Changes in SLURM 2.4.0.rc1 ============================= -- Improve task binding logic by making fuller use of HWLOC library, especially with respect to Opteron 6000 series processors. Work contributed by Komoto Masahiro. -- Add new configuration parameter PriorityFlags, based upon work by Carles Fenoy (Barcelona Supercomputer Center). -- Modify the step completion RPC between slurmd and slurmstepd in order to eliminate a possible deadlock. Based on work by Matthieu Hautreux, CEA. -- Change the owner of slurmctld and slurmdbd log files to the appropriate user. Without this change the files will be created by and owned by the user starting the daemons (likely user root). -- Reorganize the slurmstepd logic in order to better support NFS and Kerberos credentials via the AUKS plugin. Work by Matthieu Hautreux, CEA. -- Fix bug in allocating GRES that are associated with specific CPUs. In some cases the code allocated first available GRES to job instead of allocating GRES accessible to the specific CPUs allocated to the job. -- spank: Add callbacks in slurmd: slurm_spank_slurmd_{init,exit} and job epilog/prolog: slurm_spank_job_{prolog,epilog} -- spank: Add spank_option_getopt() function to api -- Change resolution of switch wait time from minutes to seconds. -- Added CrpCPUMins to the output of sshare -l for those using hard limit accounting. Work contributed by Mark Nelson. -- Added mpi/pmi2 plugin for complete support of pmi2 including acquiring additional resources for newly launched tasks. Contributed by Hongjia Cao, NUDT. -- BGQ - fixed issue where if a user asked for a specific node count and more tasks than possible without overcommit the request would be allowed on more nodes than requested. -- Add support for new SchedulerParameters of bf_max_job_user, maximum number of jobs to attempt backfilling per user. Work by Bjørn-Helge Mevik, University of Oslo. -- BLUEGENE - fixed issue where MaxNodes limit on a partition only limited larger than midplane jobs. -- Added cpu_run_min to the output of sshare --long. Work contributed by Mark Nelson. -- BGQ - allow regular users to resolve Rack-Midplane to AXYZ coords. -- Add sinfo output format option of "%R" for partition name without "*" appended for default partition. -- Cray - Add support for zero compute note resource allocation to run batch script on front-end node with no ALPS reservation. Useful for pre- or post- processing. -- Support for cyclic distribution of cpus in task/cgroup plugin from Martin Perry, Bull. -- GrpMEM limit for QOSes and associations added Patch from Bjørn-Helge Mevik, University of Oslo. -- Various performance improvements for up to 500% higher throughput depending upon configuration. Work supported by the Oak Ridge National Laboratory Extreme Scale Systems Center. -- Added jobacct_gather/cgroup plugin. It is not advised to use this in production as it isn't currently complete and doesn't provide an equivalent substitution for jobacct_gather/linux yet. Work by Martin Perry, Bull. * Changes in SLURM 2.4.0.pre4 ============================= -- Add logic to cache GPU file information (bitmap index mapping to device file number) in the slurmd daemon and transfer that information to the slurmstepd whenever a job step is initiated. This is needed to set the appropriate CUDA_VISIBLE_DEVICES environment variable value when the devices are not in strict numeric order (e.g. some GPUs are skipped). Based upon work by Nicolas Bigaouette. -- BGQ - Remove ability to make a sub-block with a geometry with one or more of it's dimensions of length 3. There is a limitation in the IBM I/O subsystem that is problematic with multiple sub-blocks with a dimension of length 3, so we will disallow them to be able to be created. This mean you if you ask the system for an allocation of 12 c-nodes you will be given 16. If this is ever fix in BGQ you can remove this patch. -- BLUEGENE - Better handling blocks that go into error state or deallocate while jobs are running on them. -- BGQ - fix for handling mix of steps running at same time some of which are full allocation jobs, and others that are smaller. -- BGQ - fix for core dump after running multiple sub-block jobs on static blocks. -- BGQ - fixed sync issue where if a job finishes in SLURM but not in mmcs for a long time after the SLURM job has been flushed from the system we don't have to worry about rebooting the block to sync the system. -- BGQ - In scontrol/sview node counts are now displayed with CnodeCount/CnodeErrCount so to point out there are cnodes in an error state on the block. Draining the block and having it reboot when all jobs are gone will clear up the cnodes in Software Failure. -- Change default SchedulerParameters max_switch_wait field value from 60 to 300 seconds. -- BGQ - catch errors from the kill option of the runjob client. -- BLUEGENE - make it so the epilog runs until slurmctld tells it the job is gone. Previously it had a timelimit which has proven to not be the right thing. -- FRONTEND - fix issue where if a compute node was in a down state and an admin updates the node to idle/resume the compute nodes will go instantly to idle instead of idle* which means no response. -- Fix regression in 2.4.0.pre3 where number of submitted jobs limit wasn't being honored for QOS. -- Cray - Enable logging of BASIL communications with environment variables. Set XML_LOG to enable logging. Set XML_LOG_LOC to specify path to log file or "SLURM" to write to SlurmctldLogFile or unset for "slurm_basil_xml.log". Patch from Steve Tronfinoff, CSCS. -- FRONTEND - if a front end unexpectedly reboots kill all jobs but don't mark front end node down. -- FRONTEND - don't down a front end node if you have an epilog error -- BLUEGENE - if a job has an epilog error don't down the midplane it was running on. -- BGQ - added new DebugFlag (NoRealTime) for only printing debug from state change while the realtime server is running. -- Fix multi-cluster mode with sview starting on a non-bluegene cluster going to a bluegene cluster. -- BLUEGENE - ability to show Rack Midplane name of midplanes in sview and scontrol. * Changes in SLURM 2.4.0.pre3 ============================= -- Let a job be submitted even if it exceeds a QOS limit. Job will be left in a pending state until the QOS limit or job parameters change. Patch by Phil Eckert, LLNL. -- Add sacct support for the option "--name". Work by Yuri D'Elia, Center for Biomedicine, EURAC Research, Italy. -- BGQ - handle preemption. -- Add an srun shepard process to cancel a job and/or step of the srun process is killed abnormally (e.g. SIGKILL). -- BGQ - handle deadlock issue when a nodeboard goes into an error state. -- BGQ - more thorough handling of blocks with multiple jobs running on them. -- Fix man2html process to compile in the build directory instead of the source dir. -- Behavior of srun --multi-prog modified so that any program arguments specified on the command line will be appended to the program arguments specified in the program configuration file. -- Add new command, sdiag, which reports a variety of job scheduling statistics. Based upon work by Alejandro Lucero Palau, BSC. -- BLUEGENE - Added DefaultConnType to the bluegene.conf file. This makes it so you can specify any connection type you would like (TORUS or MESH) as the default in dynamic mode. Previously it always defaulted to TORUS. -- Made squeue -n and -w options more consistent with salloc, sbatch, srun, and scancel. Patch by Don Lipari, LLNL. -- Have sacctmgr remove user records when no associations exist for that user. -- Several header file changes for clean build with NetBSD. Patches from Aleksej Saushev. -- Fix for possible deadlock in accounting logic: Avoid calling jobacct_gather_g_getinfo() until there is data to read from the socket. -- Fix race condition that could generate "job_cnt_comp underflow" errors on front-end architectures. -- BGQ - Fix issue where a system with missing cables could cause core dump. * Changes in SLURM 2.4.0.pre2 ============================= -- CRAY - Add support for GPU memory allocation using SLURM GRES (Generic RESource) support. Work by Steve Trofinoff, CSCS. -- Add support for job allocations with multiple job constraint counts. For example: salloc -C "[rack1*2&rack2*4]" ... will allocate the job 2 nodes from rack1 and 4 nodes from rack2. Support for only a single constraint name been added to job step support. -- BGQ - Remove old method for marking cnodes down. -- BGQ - Remove BGP images from view in sview. -- BGQ - print out failed cnodes in scontrol show nodes. -- BGQ - Add srun option of "--runjob-opts" to pass options to the runjob command. -- FRONTEND - handle step launch failure better. -- BGQ - Added a mutex to protect the now changing ba_system pointers. -- BGQ - added new functionality for sub-block allocations - no preemption for this yet though. -- Add --name option to squeue to filter output by job name. Patch from Yuri D'Elia. -- BGQ - Added linking to runjob client libary which gives support to totalview to use srun instead of runjob. -- Add numeric range checks to scontrol update options. Patch from Phil Eckert, LLNL. -- Add ReconfigFlags configuration option to control actions of "scontrol reconfig". Patch from Don Albert, Bull. -- BGQ - handle reboots with multiple jobs running on a block. -- BGQ - Add message handler thread to forward signals to runjob process. * Changes in SLURM 2.4.0.pre1 ============================= -- BGQ - use the ba_geo_tables to figure out the blocks instead of the old algorithm. The improves timing in the worst cases and simplifies the code greatly. -- BLUEGENE - Change to output tools labels from BP to Midplane (i.e. BP List -> MidplaneList). -- BLUEGENE - read MPs and BPs from the bluegene.conf -- Modify srun's SIGINT handling logic timer (two SIGINTs within one second) to be based microsecond rather than second timer. -- Modify advance reservation to accept multiple specific block sizes rather than a single node count. -- Permit administrator to change a job's QOS to any value without validating the job's owner has permission to use that QOS. Based upon patch by Phil Eckert (LLNL). -- Add trigger flag for a permanent trigger. The trigger will NOT be purged after an event occurs, but only when explicitly deleted. -- Interpret a reservation with Nodes=ALL and a Partition specification as reserving all nodes within the specified partition rather than all nodes on the system. Based upon patch by Phil Eckert (LLNL). -- Add the ability to reboot all compute nodes after they become idle. The RebootProgram configuration parameter must be set and an authorized user must execute the command "scontrol reboot_nodes". Patch from Andriy Grytsenko (Massive Solutions Limited). -- Modify slurmdbd.conf parsing to accept DebugLevel strings (quiet, fatal, info, etc.) in addition to numeric values. The parsing of slurm.conf was modified in the same fashion for SlurmctldDebug and SlurmdDebug values. The output of sview and "scontrol show config" was also modified to report those values as strings rather than numeric values. -- Changed default value of StateSaveLocation configuration parameter from /tmp to /var/spool. -- Prevent associations from being deleted if it has any jobs in running, pending or suspended state. Previous code prevented this only for running jobs. -- If a job can not run due to QOS or association limits, then do not cancel the job, but leave it pending in a system held state (priority = 1). The job will run when its limits or the QOS/association limits change. Based upon a patch by Phil Ekcert (LLNL). -- BGQ - Added logic to keep track of cnodes in an error state inside of a booted block. -- Added the ability to update a node's NodeAddr and NodeHostName with scontrol. Also enable setting a node's state to "future" using scontrol. -- Add a node state flag of CLOUD and save/restore NodeAddr and NodeHostName information for nodes with a flag of CLOUD. -- Cray: Add support for job reservations with node IDs that are not in numeric order. Fix for Bugzilla #5. -- BGQ - Fix issue with smap -R -- Fix association limit support for jobs queued for multiple partitions. -- BLUEGENE - fix issue for sub-midplane systems to create a full system block correctly. -- BLUEGENE - Added option to the bluegene.conf to tell you are running on a sub midplane system. -- Added the UserID of the user issuing the RPC to the job_submit/lua functions. -- Fixed issue where if a job ended with ESLURMD_UID_NOT_FOUND and ESLURMD_GID_NOT_FOUND where slurm would be a little over zealous in treating missing a GID or UID as a fatal error. -- If job time limit exceeds partition maximum, but job's minimum time limit does not, set job's time limit to partition maximum at allocation time. * Changes in SLURM 2.3.6 ======================== -- Fix DefMemPerCPU for partition definitions. -- Fix to create a reservation with licenses and no nodes. -- Fix issue with assoc_mgr if a bad state file is given and the database isn't up at the time the slurmctld starts, not running the priority/multifactor plugin, and then the database is started up later. -- Gres: If a gres has a count of one and an associated file then when doing a reconfiguration, the node's bitmap was not cleared resulting in an underflow upon job termination or removal from scheduling matrix by the backfill scheduler. -- Fix race condition in job dependency logic which can result in invalid memory reference. * Changes in SLURM 2.3.5 ======================== -- Improve support for overlapping advanced reservations. Patch from Bill Brophy, Bull. -- Modify Makefiles for support of Debian hardening flags. Patch from Simon Ruderich. -- CRAY: Fix support for configuration with SlurmdTimeout=0 (never mark node that is DOWN in ALPS as DOWN in SLURM). -- Fixed the setting of SLURM_SUBMIT_DIR for jobs submitted by Moab (BZ#1467). Patch by Don Lipari, LLNL. -- Correction to init.d/slurmdbd exit code for status option. Patch by Bill Brophy, Bull. -- When the optional max_time is not specified for --switches=count, the site max (SchedulerParameters=max_switch_wait=seconds) is used for the job. Based on patch from Rod Schultz. -- Fix bug in select/cons_res plugin when used with topology/tree and a node range count in job allocation request. -- Fixed moab_2_slurmdb.pl script to correctly work for end records. -- Add support for new SchedulerParameters of max_depend_depth defining the maximum number of jobs to test for circular dependencies (i.e. job A waits for job B to start and job B waits for job A to start). Default value is 10 jobs. -- Fix potential race condition if MinJobAge is very low (i.e. 1) and using slurmdbd accounting and running large amounts of jobs (>50 sec). Job information could be corrupted before it had a chance to reach the DBD. -- Fix state restore of job limit set from admin value for min_cpus. -- Fix clearing of limit values if an admin removes the limit for max cpus and time limit where it was previously set by an admin. -- Fix issue where log message is more than 256 chars and then has a format. -- Fix sched/wiki2 to support job account name, gres, partition name, wckey, or working directory that contains "#" (a job record separator). Also fix for wckey or working directory that contains a double quote '\"'. -- CRAY - fix for handling memory requests from user for an allocation. -- Add support for switches parameter to the job_submit/lua plugin. Work by Par Andersson, NSC. -- Fix to job preemption logic to preempt multiple jobs at the same time. -- Fix minor issue where uid and gid were switched in sview for submitting batch jobs. -- Fix possible illegal memory reference in slurmctld for job step with relative option. Work by Matthieu Hautreux (CEA). -- Reset priority of system held jobs when dependency is satisfied. Work by Don Lipari, LLNL. * Changes in SLURM 2.3.4 ======================== -- Set DEFAULT flag in partition structure when slurmctld reads the configuration file. Patch from Rémi Palancher. -- Fix for possible deadlock in accounting logic: Avoid calling jobacct_gather_g_getinfo() until there is data to read from the socket. -- Fix typo in accounting when using reservations. Patch from Alejandro Lucero Palau. -- Fix to the multifactor priority plugin to calculate effective usage earlier to give a correct priority on the first decay cycle after a restart of the slurmctld. Patch from Martin Perry, Bull. -- Permit user root to run a job step for any job as any user. Patch from Didier Gazen, Laboratoire d'Aerologie. -- BLUEGENE - fix for not allowing jobs if all midplanes are drained and all blocks are in an error state. -- Avoid slurmctld abort due to bad pointer when setting an advanced reservation MAINT flag if it contains no nodes (only licenses). -- Fix bug when requeued batch job is scheduled to run on a different node zero, but attemts job launch on old node zero. -- Fix bug in step task distribution when nodes are not configured in numeric order. Patch from Hongjia Cao, NUDT. -- Fix for srun allocating running within existing allocation with --exclude option and --nnodes count small enough to remove more nodes. Patch from Phil Eckert, LLNL. -- Work around to handle certain combinations of glibc/kernel (i.e. glibc-2.14/Linux-3.1) to correctly open the pty of the slurmstepd as the job user. Patch from Mark Grondona, LLNL. -- Modify linking to include "-ldl" only when needed. Patch from Aleksej Saushev. -- Fix smap regression to display nodes that are drained or down correctly. -- Several bug fixes and performance improvements with related to batch scripts containing very large numbers of arguments. Patches from Par Andersson, NSC. -- Fixed extremely hard to reproduce threading issue in assoc_mgr. -- Correct "scontrol show daemons" output if there is more than one ControlMachine configured. -- Add node read lock where needed in slurmctld/agent code. -- Added test for LUA library named "liblua5.1.so.0" in addition to "liblua5.1.so" as needed by Debian. Patch by Remi Palancher. -- Added partition default_time field to job_submit LUA plugin. Patch by Remi Palancher. -- Fix bug in cray/srun wrapper stdin/out/err file handling. -- In cray/srun wrapper, only include aprun "-q" option when srun "--quiet" option is used. -- BLUEGENE - fix issue where if a small block was in error it could hold up the queue when trying to place a larger than midplane job. -- CRAY - ignore all interactive nodes and jobs on interactive nodes. -- Add new job state reason of "FrontEndDown" which applies only to Cray and IBM BlueGene systems. -- Cray - Enable configure option of "--enable-salloc-background" to permit the srun and salloc commands to be executed in the background. This does NOT remove the ALPS limitation that only one job reservation can be created for each Linux session ID. -- Cray - For srun wrapper when creating a job allocation, set the default job name to the executable file's name. -- Add support for Cray ALPS 5.0.0 -- FRONTEND - if a front end unexpectedly reboots kill all jobs but don't mark front end node down. -- FRONTEND - don't down a front end node if you have an epilog error. -- Cray - fix for if a frontend slurmd was started after the slurmctld had already pinged it on startup the unresponding flag would be removed from the frontend node. -- Cray - Fix issue on smap not displaying grid correctly. -- Fixed minor memory leak in sview. * Changes in SLURM 2.3.3 ======================== -- Fix task/cgroup plugin error when used with GRES. Patch by Alexander Bersenev (Institute of Mathematics and Mechanics, Russia). -- Permit pending job exceeding a partition limit to run if its QOS flag is modified to permit the partition limit to be exceeded. Patch from Bill Brophy, Bull. -- BLUEGENE - Fixed preemption issue. -- sacct search for jobs using filtering was ignoring wckey filter. -- Fixed issue with QOS preemption when adding new QOS. -- Fixed issue with comment field being used in a job finishing before it starts in accounting. -- Add slashes in front of derived exit code when modifying a job. -- Handle numeric suffix of "T" for terabyte units. Patch from John Thiltges, University of Nebraska-Lincoln. -- Prevent resetting a held job's priority when updating other job parameters. Patch from Alejandro Lucero Palau, BSC. -- Improve logic to import a user's environment. Needed with --get-user-env option used with Moab. Patch from Mark Grondona, LLNL. -- Fix bug in sview layout if node count less than configured grid_x_width. -- Modify PAM module to prefer to use SLURM library with same major release number that it was built with. -- Permit gres count configuration of zero. -- Fix race condition where sbcast command can result in deadlock of slurmd daemon. Patch by Don Albert, Bull. -- Fix bug in srun --multi-prog configuration file to avoid printing duplicate record error when "*" is used at the end of the file for the task ID. -- Let operators see reservation data even if "PrivateData=reservations" flag is set in slurm.conf. Patch from Don Albert, Bull. -- Added new sbatch option "--export-file" as needed for latest version of Moab. Patch from Phil Eckert, LLNL. -- Fix for sacct printing CPUTime(RAW) where the the is greater than a 32 bit number. -- Fix bug in --switch option with topology resulting in bad switch count use. Patch from Alejandro Lucero Palau (Barcelona Supercomputer Center). -- Fix PrivateFlags bug when using Priority Multifactor plugin. If using sprio all jobs would be returned even if the flag was set. Patch from Bill Brophy, Bull. -- Fix for possible invalid memory reference in slurmctld in job dependency logic. Patch from Carles Fenoy (Barcelona Supercomputer Center). * Changes in SLURM 2.3.2 ======================== -- Add configure option of "--without-rpath" which builds SLURM tools without the rpath option, which will work if Munge and BlueGene libraries are in the default library search path and make system updates easier. -- Fixed issue where if a job ended with ESLURMD_UID_NOT_FOUND and ESLURMD_GID_NOT_FOUND where slurm would be a little over zealous in treating missing a GID or UID as a fatal error. -- Backfill scheduling - Add SchedulerParameters configuration parameter of "bf_res" to control the resolution in the backfill scheduler's data about when jobs begin and end. Default value is 60 seconds (used to be 1 second). -- Cray - Remove the "family" specification from the GPU reservation request. -- Updated set_oomadj.c, replacing deprecated oom_adj reference with oom_score_adj -- Fix resource allocation bug, generic resources allocation was ignoring the job's ntasks_per_node and cpus_per_task parameters. Patch from Carles Fenoy, BSC. -- Avoid orphan job step if slurmctld is down when a job step completes. -- Fix Lua link order, patch from Pär Andersson, NSC. -- Set SLURM_CPUS_PER_TASK=1 when user specifies --cpus-per-task=1. -- Fix for fatal error managing GRES. Patch by Carles Fenoy, BSC. -- Fixed race condition when using the DBD in accounting where if a job wasn't started at the time the eligible message was sent but started before the db_index was returned information like start time would be lost. -- Fix issue in accounting where normalized shares could be updated incorrectly when getting fairshare from the parent. -- Fixed if not enforcing associations but want QOS support for a default qos on the cluster to fill that in correctly. -- Fix in select/cons_res for "fatal: cons_res: sync loop not progressing" with some configurations and job option combinations. -- BLUEGNE - Fixed issue with handling HTC modes and rebooting. * Changes in SLURM 2.3.1 ======================== -- Do not remove the backup slurmctld's pid file when it assumes control, only when it actually shuts down. Patch from Andriy Grytsenko (Massive Solutions Limited). -- Avoid clearing a job's reason from JobHeldAdmin or JobHeldUser when it is otherwise updated using scontrol or sview commands. Patch based upon work by Phil Eckert (LLNL). -- BLUEGENE - Fix for if changing the defined blocks in the bluegene.conf and jobs happen to be running on blocks not in the new config. -- Many cosmetic modifications to eliminate warning message from GCC version 4.6 compiler. -- Fix for sview reservation tab when finding correct reservation. -- Fix for handling QOS limits per user on a reconfig of the slurmctld. -- Do not treat the absence of a gres.conf file as a fatal error on systems configured with GRES, but set GRES counts to zero. -- BLUEGENE - Update correctly the state in the reason of a block if an admin sets the state to error. -- BLUEGENE - handle reason of blocks in error more correctly between restarts of the slurmctld. -- BLUEGENE - Fix minor potential memory leak when setting block error reason. -- BLUEGENE - Fix if running in Static/Overlap mode and full system block is in an error state, won't deny jobs. -- Fix for accounting where your cluster isn't numbered in counting order (i.e. 1-9,0 instead of 0-9). The bug would cause 'sacct -N nodename' to not give correct results on these systems. -- Fix to GRES allocation logic when resources are associated with specific CPUs on a node. Patch from Steve Trofinoff, CSCS. -- Fix bugs in sched/backfill with respect to QOS reservation support and job time limits. Patch from Alejandro Lucero Palau (Barcelona Supercomputer Center). -- BGQ - fix to set up corner correctly for sub block jobs. -- Major re-write of the CPU Management User and Administrator Guide (web page) by Martin Perry, Bull. -- BLUEGENE - If removing blocks from system that once existed cleanup of old block happens correctly now. -- Prevent slurmctld crashing with configuration of MaxMemPerCPU=0. -- Prevent job hold by operator or account coordinator of his own job from being an Administrator Hold rather than User Hold by default. -- Cray - Fix for srun.pl parsing to avoid adding spaces between option and argument (e.g. "-N2" parsed properly without changing to "-N 2"). -- Major updates to cgroup support by Mark Grondona (LLNL) and Matthieu Hautreux (CEA) and Sam Lang. Fixes timing problems with respect to the task_epilog. Allows cgroup mount point to be configurable. Added new configuration parameters MaxRAMPercent and MaxSwapPercent. Allow cgroup configuration parameters that are precentages to be floating point. -- Fixed issue where sview wasn't displaying correct nice value for jobs. -- Fixed issue where sview wasn't displaying correct min memory per node/cpu value for jobs. -- Disable some SelectTypeParameters for select/linear that aren't compatible. -- Move slurm_select_init to proper place to avoid loading multiple select plugins in the slurmd. -- BGQ - Include runjob_plugin.so in the bluegene rpm. -- Report correct job "Reason" if needed nodes are DOWN, DRAINED, or NOT_RESPONDING, "Resources" rather than "PartitionNodeLimit". -- BLUEGENE - Fixed issues with running on a sub-midplane system. -- Added some missing calls to allow older versions of SLURM to talk to newer. -- BGQ - allow steps to be ran. -- Do not attempt to run HeathCheckProgram on powered down nodes. Patch from Ramiro Alba, Centre Tecnològic de Tranferència de Calor, Spain. * Changes in SLURM 2.3.0-2 ========================== -- Fix for memory issue inside sview. -- Fix issue where if a job was pending and the slurmctld was restarted a variable wasn't initialized in the job structure making it so that job wouldn't run. * Changes in SLURM 2.3.0 ======================== -- BLUEGENE - make sure we only set the jobinfo_select start_loc on a job when we are on a small block, not a regular one. -- BGQ - fix issue where not copying the correct amount of memory. -- BLUEGENE - fix clean start if jobs were running when the slurmctld was shutdown and then the system size changed. This would probably only happen if you were emulating a system. -- Fix sview for calling a cray system from a non-cray system to get the correct geometry of the system. -- BLUEGENE - fix to correctly import pervious version of block state file. -- BLUEGENE - handle loading better when doing a clean start with static blocks. -- Add sinfo format and sort option "%n" for NodeHostName and "%o" for NodeAddr. -- If a job is deferred due to partition limits, then re-test those limits after a partition is modified. Patch from Don Lipari. -- Fix bug which would crash slurmcld if job's owner (not root) tries to clear a job's licenses by setting value to "". -- Cosmetic fix for printing out debug info in the priority plugin. -- In sview when switching from a bluegene machine to a regular linux cluster and vice versa the node->base partition lists will be displayed if setup in your .slurm/sviewrc file. -- BLUEGENE - Fix for creating full system static block on a BGQ system. -- BLUEGENE - Fix deadlock issue if toggling between Dynamic and Static block allocation with jobs running on blocks that don't exist in the static setup. -- BLUEGENE - Modify code to only give HTC states to BGP systems and not allow them on Q systems. -- BLUEGENE - Make it possible for an admin to define multiple dimension conn_types in a block definition. -- BGQ - Alter tools to output multiple dimensional conn_type. * Changes in SLURM 2.3.0.rc2 ============================ -- With sched/wiki or sched/wiki2 (Maui or Moab scheduler), insure that a requeued job's priority is reset to zero. -- BLUEGENE - fix to run steps correctly in a BGL/P emulated system. -- Fixed issue where if there was a network issue between the slurmctld and the DBD where both remained up but were disconnected the slurmctld would get registered again with the DBD. -- Fixed issue where if the DBD connection from the ctld goes away because of a POLLERR the dbd_fail callback is called. -- BLUEGENE - Fix to smap command-line mode display. -- Change in GRES behavior for job steps: A job step's default generic resource allocation will be set to that of the job. If a job step's --gres value is set to "none" then none of the generic resources which have been allocated to the job will be allocated to the job step. -- Add srun environment value of SLURM_STEP_GRES to set default --gres value for a job step. -- Require SchedulerTimeSlice configuration parameter to be at least 5 seconds to avoid thrashing slurmd daemon. -- Cray - Fix to make nodes state in accounting consistent with state set by ALPS. -- Cray - A node DOWN to ALPS will be marked DOWN to SLURM only after reaching SlurmdTimeout. In the interim, the node state will be NO_RESPOND. This change makes behavior makes SLURM handling of the node DOWN state more consistent with ALPS. This change effects only Cray systems. -- Cray - Fix to work with 4.0.* instead of just 4.0.0 -- Cray - Modify srun/aprun wrapper to map --exclusive to -F exclusive and --share to -F share. Note this does not consider the partition's Shared configuration, so it is an imperfect mapping of options. -- BLUEGENE - Added notice in the print config to tell if you are emulated or not. -- BLUEGENE - Fix job step scalability issue with large task count. -- BGQ - Improved c-node selection when asked for a sub-block job that cannot fit into the available shape. -- BLUEGENE - Modify "scontrol show step" to show I/O nodes (BGL and BGP) or c-nodes (BGQ) allocated to each step. Change field name from "Nodes=" to "BP_List=". -- Code cleanup on step request to get the correct select_jobinfo. -- Memory leak fixed for rolling up accounting with down clusters. -- BGQ - fix issue where if first job step is the entire block and then the next parallel step is ran on a sub block, SLURM won't over subscribe cnodes. -- Treat duplicate switch name in topology.conf as fatal error. Patch from Rod Schultz, Bull -- Minor update to documentation describing the AllowGroups option for a partition in the slurm.conf. -- Fix problem with _job_create() when not using qos's. It makes _job_create() consistent with similar logic in select_nodes(). -- GrpCPURunMins in a QOS flushed out. -- Fix for squeue -t "CONFIGURING" to actually work. -- CRAY - Add cray.conf parameter of SyncTimeout, maximum time to defer job scheduling if SLURM node or job state are out of synchronization with ALPS. -- If salloc was run as interactive, with job control, reset the foreground process group of the terminal to the process group of the parent pid before exiting. Patch from Don Albert, Bull. -- BGQ - set up the corner of a sub block correctly based on a relative position in the block instead of absolute. -- BGQ - make sure the recently added select_jobinfo of a step launch request isn't sent to the slurmd where environment variables would be overwritten incorrectly. * Changes in SLURM 2.3.0.rc1 ============================ -- NOTE THERE HAVE BEEN NEW FIELDS ADDED TO THE JOB AND PARTITION STATE SAVE FILES AND RPCS. PENDING AND RUNNING JOBS WILL BE LOST WHEN UPGRADING FROM EARLIER VERSION 2.3 PRE-RELEASES AND RPCS WILL NOT WORK WITH EARLIER VERSIONS. -- select/cray: Add support for Accelerator information including model and memory options. -- Cray systems: Add support to suspend/resume salloc command to insure that aprun does not get initiated when the job is suspended. Processes suspended and resumed are determined by using process group ID and parent process ID, so some processes may be missed. Since salloc runs as a normal user, it's ability to identify processes associated with a job is limited. -- Cray systems: Modify smap and sview to display all nodes even if multiple nodes exist at each coordinate. -- Improve efficiency of select/linear plugin with topology/tree plugin configured, Patch by Andriy Grytsenko (Massive Solutions Limited). -- For front-end architectures on which job steps are run (emulated Cray and BlueGene systems only), fix bug that would free memory still in use. -- Add squeue support to display a job's license information. Patch by Andy Roosen (University of Deleware). -- Add flag to the select APIs for job suspend/resume indicating if the action is for gang scheduling or an explicit job suspend/resume by the user. Only an explicit job suspend/resume will reset the job's priority and make resources exclusively held by the job available to other jobs. -- Fix possible invalid memory reference in sched/backfill. Patch by Andriy Grytsenko (Massive Solutions Limited). -- Add select_jobinfo to the task launch RPC. Based upon patch by Andriy Grytsenko (Massive Solutions Limited). -- Add DefMemPerCPU/Node and MaxMemPerCPU/Node to partition configuration. This improves flexibility when gang scheduling only specific partitions. -- Added new enums to print out when a job is held by a QOS instead of an association limit. -- Enhancements to sched/backfill performance with select/cons_res plugin. Patch from Bjørn-Helge Mevik, University of Oslo. -- Correct job run time reported by smap for suspended jobs. -- Improve job preemption logic to avoid preempting more jobs than needed. -- Add contribs/arrayrun tool providing support for job arrays. Contributed by Bjørn-Helge Mevik, University of Oslo. NOTE: Not currently packaged as RPM and manual file editing is required. -- When suspending a job, wait 2 seconds instead of 1 second between sending SIGTSTP and SIGSTOP. Some MPI implementation were not stopping within the 1 second delay. -- Add support for managing devices based upon Linux cgroup container. Based upon patch by Yiannis Georgiou, Bull. -- Fix memory buffering bug if a AllowGroups parameter of a partition has 100 or more users. Patch by Andriy Grytsenko (Massive Solutions Limited). -- Fix bug in generic resource tracking of gres associated with specific CPUs. Resources were being over-allocated. -- On systems with front-end nodes (IBM BlueGene and Cray) limit batch jobs to only one CPU of these shared resources. -- Set SLURM_MEM_PER_CPU or SLURM_MEM_PER_NODE environment variables for both interactive (salloc) and batch jobs if the job has a memory limit. For Cray systems also set CRAY_AUTO_APRUN_OPTIONS environment variable with the memory limit. -- Fix bug in select/cons_res task distribution logic when tasks-per-node=0. Patch from Rod Schultz, Bull. -- Restore node configuration information (CPUs, memory, etc.) for powered down when slurmctld daemon restarts rather than waiting for the node to be restored to service and getting the information from the node (NOTE: Only relevent if FastSchedule=0). -- For Cray systems with the srun2aprun wrapper, rebuild the srun man page identifying the srun optioins which are valid on that system. -- BlueGene: Permit users to specify a separate connection type for each dimension (e.g. "--conn-type=torus,mesh,torus"). -- Add the ability for a user to limit the number of leaf switches in a job's allocation using the --switch option of salloc, sbatch and srun. There is also a new SchedulerParameters value of max_switch_wait, which a SLURM administrator can used to set a maximum job delay and prevent a user job from blocking lower priority jobs for too long. Based on work by Rod Schultz, Bull. * Changes in SLURM 2.3.0.pre6 ============================= -- NOTE: THERE HAS BEEN A NEW FIELD ADDED TO THE CONFIGURATION RESPONSE RPC AS SHOWN BY "SCONTROL SHOW CONFIG". THIS FUNCTION WILL ONLY WORK WHEN THE SERVER AND CLIENT ARE BOTH RUNNING SLURM VERSION 2.3.0.pre6 -- Modify job expansion logic to support licenses, generic resources, and currently running job steps. -- Added an rpath if using the --with-munge option of configure. -- Add support for multiple sets of DEFAULT node, partition, and frontend specifications in slurm.conf so that default values can be changed mulitple times as the configuration file is read. -- BLUEGENE - Improved logic to place small blocks in free space before freeing larger blocks. -- Add optional argument to srun's --kill-on-bad-exit so that user can set its value to zero and override a SLURM configuration parameter of KillOnBadExit. -- Fix bug in GraceTime support for preempted jobs that prevented proper operation when more than one job was being preempted. Based on patch from Bill Brophy, Bull. -- Fix for running sview from a non-bluegene cluster to a bluegene cluster. Regression from pre5. -- If job's TMPDIR environment is not set or is not usable, reset to "/tmp". Patch from Andriy Grytsenko (Massive Solutions Limited). -- Remove logic for defunct RPC: DBD_GET_JOBS. -- Propagate DebugFlag changes by scontrol to the plugins. -- Improve accuracy of REQUEST_JOB_WILL_RUN start time with respect to higher priority pending jobs. -- Add -R/--reservation option to squeue command as a job filter. -- Add scancel support for --clusters option. -- Note that scontrol and sprio can only support a single cluster at one time. -- Add support to salloc for a new environment variable SALLOC_KILL_CMD. -- Add scontrol ability to increment or decrement a job or step time limit. -- Add support for SLURM_TIME_FORMAT environment variable to control time stamp output format. Work by Gerrit Renker, CSCS. -- Fix error handling in mvapich plugin that could cause srun to enter an infinite loop under rare circumstances. -- Add support for multiple task plugins. Patch from Andriy Grytsenko (Massive Solutions Limited). -- Addition of per-user node/cpu limits for QOS's. Patch from Aaron Knister, UMBC. -- Fix logic for multiple job resize operations. -- BLUEGENE - many fixes to make things work correctly on a L/P system. -- Fix bug in layout of job step with --nodelist option plus node count. Old code could allocate too few nodes. * Changes in SLURM 2.3.0.pre5 ============================= -- NOTE: THERE HAS BEEN A NEW FIELD ADDED TO THE JOB STATE FILE. UPGRADES FROM VERSION 2.3.0-PRE4 WILL RESULT IN LOST JOBS UNLESS THE "orig_dependency" FIELD IS REMOVED FROM JOB STATE SAVE/RESTORE LOGIC. ON CRAY SYSTEMS A NEW "confirm_cookie" FIELD WAS ADDED AND HAS THE SAME EFFECT OF DISABLING JOB STATE RESTORE. -- BLUEGENE - Improve speed of start up when removing blocks at the beginning. -- Correct init.d/slurm status to have non-zero exit code if ANY Slurm damon that should be running on the node is not running. Patch from Rod Schulz, Bull. -- Improve accuracy of response to "srun --test-only jobid=#". -- Fix bug in front-end configurations which reports job_cnt_comp underflow errors after slurmctld restarts. -- Eliminate "error from _trigger_slurmctld_event in backup.c" due to lack of event triggers. -- Fix logic in BackupController to properly recover front-end node state and avoid purging active jobs. -- Added man pages to html pages and the new cpu_management.html page. Submitted by Martin Perry / Rod Schultz, Bull. -- Job dependency information will only show the currently active dependencies rather than the original dependencies. From Dan Rusak, Bull. -- Add RPCs to get the SPANK environment variables from the slurmctld daemon. Patch from Andrej N. Gritsenko. -- Updated plugins/task/cgroup/task_cgroup_cpuset.c to support newer HWLOC_API_VERSION. -- Do not build select/bluegene plugin if C++ compiler is not installed. -- Add new configure option --with-srun2aprun to build an srun command which is a wrapper over Cray's aprun command and supports many srun options. Without this option, the srun command will advise the user to use the aprun command. -- Change container ID supported by proctrack plugin from 32-bit to 64-bit. -- Added contribs/cray/libalps_test_programs.tar.gz with tools to validate SLURM's logic used to support Cray systems. -- Create RPM for srun command that is a wrapper for the Cray/ALPS aprun command. Dependent upon .rpmmacros parameter of "%_with_srun2aprun". -- Add configuration parameter MaxStepCount to limit effect of bad batch scripts. -- Moving to github -- Fix for handling a 2.3 system talking to a 2.2 slurmctld. -- Add contribs/lua/job_submit.license.lua script. Update job_submit and Lua related documentation. -- Test if _make_batch_script() is called with a NULL script. -- Increase hostlist support from 24k to 64k nodes. -- Renamed the Accounting Storage database's "DerivedExitString" job field to "Comment". Provided backward compatible support for "DerivedExitString" in the sacctmgr tool. -- Added the ability to save the job's comment field to the Accounting Storage db (to the formerly named, "DerivedExitString" job field). This behavior is enabled by a new slurm.conf parameter: AccountingStoreJobComment. -- Test if _make_batch_script() is called with a NULL script. -- Increase hostlist support from 24k to 64k nodes. -- Fix srun to handle signals correctly when waiting for a step creation. -- Preserve the last job ID across slurmctld daemon restarts even if the job state file can not be fully recovered. -- Made the hostlist functions be able to arbitrarily handle any size dimension no matter what the size of the cluster is in dimensions. * Changes in SLURM 2.3.0.pre4 ============================= -- Add GraceTime to Partition and QOS data structures. Preempted jobs will be given this time interval before termination. Work by Bill Brophy, Bull. -- Add the ability for scontrol and sview to modify slurmctld DebugFlags values. -- Various Cray-specific patches: - Fix a bug in distinguishing XT from XE. - Avoids problems with empty nodenames on Cray. - Check whether ALPS is hanging on to nodes, which happens if ALPS has not yet cleaned up the node partition. - Stops select/cray from clobbering node_ptr->reason. - Perform 'safe' release of ALPS reservations using inventory and apkill. - Compile-time sanity check for the apbasil and apkill files. - Changes error handling in do_basil_release() (called by select_g_job_fini()). - Warn that salloc --no-shell option is not supported on Cray systems. -- Add a reservation flag of "License_Only". If set, then jobs using the reservation may use the licenses associated with it plus any compute nodes. Otherwise the job is limited to the compute nodes associated with the reservation. -- Change slurm.conf node configuration parameter from "Procs" to "CPUs". Both parameters will be supported for now. -- BLUEGENE - fix for when user requests only midplane names with no count at job submission time to process the node count correctly. -- Fix job step resource allocation problem when both node and tasks counts are specified. New logic selects nodes with larger CPU counts as needed. -- BGQ - make it so srun wraps runjob (still under construction, but works for most cases) -- Permit a job's QOS and Comment field to both change in a single RPC. This was previously disabled since Moab stored the QOS within the Comment field. -- Add support for jobs to expand in size. Submit additional batch job with the option "--dependency=expand:". See web page "faq.html#job_size" for details. Restrictions to be removed in the future. -- Added --with-alps-emulation to configure, and also an optional cray.conf to setup alps location and database information. -- Modify PMI data types from 16-bits to 32-bits in order to support MPICH2 jobs with more than 65,536 tasks. Patch from Hongjia Cao, NUDT. -- Set slurmd's soft process CPU limit equal to it's hard limit and notify the user if the limit is not infinite. -- Added proctrack/cgroup and task/cgroup plugins from Matthieu Hautreux, CEA. -- Fix slurmctld restart logic that could leave nodes in UNKNOWN state for a longer time than necessary after restart. * Changes in SLURM 2.3.0.pre3 ============================= -- BGQ - Appears to work correctly in emulation mode, no sub blocks just yet. -- Minor typos fixed -- Various bug fixes for Cray systems. -- Fix bug that when setting a compute node to idle state, it was failing to set the systems up_node_bitmap. -- BLUEGENE - code reorder -- BLUEGENE - Now only one select plugin for all Bluegene systems. -- Modify srun to set the SLURM_JOB_NAME environment variable when srun is used to create a new job allocation. Not set when srun is used to create a job step within an existing job allocation. -- Modify init.d/slurm script to start multiple slurmd daemons per compute node if so configured. Patch from Matthieu Hautreux, CEA. -- Change license data structure counters from uint16_t to uint32_t to support larger license counts. * Changes in SLURM 2.3.0.pre2 ============================= -- Log a job's requeue or cancellation due to preemption to that job's stderr: "*** JOB 65547 CANCELLED AT 2011-01-21T12:59:33 DUE TO PREEMPTION ***". -- Added new job termination state of JOB_PREEMPTED, "PR" or "PREEMPTED" to indicate job termination was due to preemption. -- Optimize advanced reservations resource selection for computer topology. The logic has been added to select/linear and select/cons_res, but will not be enabled until the other select plugins are modified. -- Remove checkpoint/xlch plugin. -- Disable deletion of partitions that have unfinished jobs (pending, running or suspended states). Patch from Martin Perry, BULL. -- In sview, disable the sorting of node records by name at startup for clusters over 1000 nodes. Users can enable this by selecting the "Name" tab. This change dramatically improves scalability of sview. -- Report error when trying to change a node's state from scontrol for Cray systems. -- Do not attempt to read the batch script for non-batch jobs. This patch eliminates some inappropriate error messages. -- Preserve NodeHostName when reordering nodes due to system topology. -- On Cray/ALPS systems do node inventory before scheduling jobs. -- Disable some salloc options on Cray systems. -- Disable scontrol's wait_job command on Cray systems. -- Disable srun command on native Cray/ALPS systems. -- Updated configure option "--enable-cray-emulation" (still under development) to emulate a cray XT/XE system, and auto-detect a real Cray XT/XE systems (removed no longer needed --enable-cray configure option). Building on native Cray systems requires the cray-MySQL-devel-enterprise rpm and expat XML parser library/headers. * Changes in SLURM 2.3.0.pre1 ============================= -- Added that when a slurmctld closes the connection to the database it's registered host and port are removed. -- Added flag to slurmdbd.conf TrackSlurmctldDown where if set will mark idle resources as down on a cluster when a slurmctld disconnects or is no longer reachable. -- Added support for more than one front-end node to run slurmd on architectures where the slurmd does not execute on the compute nodes (e.g. BlueGene). New configuration parameters FrontendNode and FrontendAddr added. See "man slurm.conf" for more information. -- With the scontrol show job command when using the --details option, show a batch job's script. -- Add ability to create reservations or partitions and submit batch jobs using sview. Also add the ability to delete reservations and partitions. -- Added new configuration parameter MaxJobId. Once reached, restart job ID values at FirstJobId. -- When restarting slurmctld with priority/basic, increment all job priorities so the highest job priority becomes TOP_PRIORITY. * Changes in SLURM 2.2.8 ======================== -- Prevent background salloc disconnecting terminal at termination. Patch by Don Albert, Bull. -- Fixed issue where preempt mode is skipped when creating a QOS. Patch by Bill Brophy, Bull. -- Fixed documention (html) for PriorityUsageResetPeriod to match that in the man pages. Patch by Nancy Kritkausky, Bull. * Changes in SLURM 2.2.7 ======================== -- Eliminate zombie process created if salloc exits with stopped child process. Patch from Gerrit Renker, CSCS. -- With default configuration on non-Cray systems, enable salloc to be spawned as a background process. Based upon work by Don Albert (Bull) and Gerrit Renker (CSCS). -- Fixed Regression from 2.2.4 in accounting where an inherited limit would not be set correctly in the added child association. -- Fixed issue with accounting when asking for jobs with a hostlist. -- Avoid clearing a node's Arch, OS, BootTime and SlurmdStartTime when "scontrol reconfig" is run. Patch from Martin Perry, Bull. * Changes in SLURM 2.2.6 ======================== -- Fix displaying of account coordinators with sacctmgr. Possiblity to show deleted accounts. Only a cosmetic issue, since the accounts are already deleted, and have no associations. -- Prevent opaque ncurses WINDOW struct on OS X 10.6. -- Fix issue with accounting when using PrivateData=jobs... users would not be able to view there own jobs unless they were admin or coordinators which is obviously wrong. -- Fix bug in node stat if slurmctld is restarted while nodes are in the process of being powered up. Patch from Andriy Grytsenko. -- Change maximum batch script size from 128k to 4M. -- Get slurmd -f option working. Patch from Andriy Grytsenko. -- Fix for linking problem on OSX. Patches from Jon Bringhurst (LANL) and Tyler Strickland. -- Reset a job's priority to zero (suspended) when Moab requeues the job. Patch from Par Andersson, NSC. -- When enforcing accounting, fix polling for unknown uids for users after the slurmctld started. Previously one would have to issue a reconfigure to the slurmctld to have it look for new uids. -- BLUEGENE - if a block goes into an error state. Fix issue where accounting wasn't updated correctly when the block was resumed. -- Synchronize power-save module better with scheduler. Patch from Andriy Grytsenko (Massive Solutions Limited). -- Avoid SEGV in association logic with user=NULL. Patch from Andriy Grytsenko (Massive Solutions Limited). -- Fixed issue in accounting where it was possible for a new association/wckey to be set incorrectly as a default the new object was added after an original default object already existed. Before the slurmctld would need to be restarted to fix the issue. -- Updated the Normalized Usage section in priority_multifactor.shtml. -- Disable use of SQUEUE_FORMAT env var if squeue -l, -o, or -s option is used. Patch from Aaron Knister (UMBC). * Changes in SLURM 2.2.5 ======================== -- Correct init.d/slurm status to have non-zero exit code if ANY Slurm damon that should be running on the node is not running. Patch from Rod Schulz, Bull. -- Improve accuracy of response to "srun --test-only jobid=#". -- Correct logic to properly support --ntasks-per-node option in the select/cons_res plugin. Patch from Rod Schulz, Bull. -- Fix bug in select/cons_res with respect to generic resource (gres) scheduling which prevented some jobs from starting as soon as possible. -- Fix memory leak in select/cons_res when backfill scheduling generic resources (gres). -- Fix for when configuring a node with more resources than in real life and using task/affinity. -- Fix so slurmctld will pack correctly 2.1 step information. (Only needed if a 2.1 client is talking to a 2.2 slurmctld.) -- Set powered down node's state to IDLE+POWER after slurmctld restart instead of leaving in UNKNOWN+POWER. Patch from Andrej Gritsenko. -- Fix bug where is srun's executable is not on it's current search path, but can be found in the user's default search path. Modify slurmstepd to find the executable. Patch from Andrej Gritsenko. -- Make sview display correct cpu count for steps. -- BLUEGENE - when running in overlap mode make sure to check the connection type so you can create overlapping blocks on the exact same nodes with different connection types (i.e. one torus, one mesh). -- Fix memory leak if MPI ports are reserved (for OpenMPI) and srun's --resv-ports option is used. -- Fix some anomalies in select/cons_res task layout when using the --cpus-per-task option. Patch from Martin Perry, Bull. -- Improve backfill scheduling logic when job specifies --ntasks-per-node and --mem-per-cpu options on a heterogeneous cluster. Patch from Bjorn-Helge Mevik, University of Oslo. -- Print warning message if srun specifies --cpus-per-task larger than used to create job allocation. -- Fix issue when changing a users name in accounting, if using wckeys would execute correctly, but bad memcopy would core the DBD. No information would be lost or corrupted, but you would need to restart the DBD. * Changes in SLURM 2.2.4 ======================== -- For batch jobs for which the Prolog fails, substitute the job ID for any "%j" in the job's output or error file specification. -- Add licenses field to the sview reservation information. -- BLUEGENE - Fix for handling extremely overloaded system on Dynamic system dealing with starting jobs on overlapping blocks. Previous fallout was job would be requeued. (happens very rarely) -- In accounting_storage/filetxt plugin, substitute spaces within job names, step names, and account names with an underscore to insure proper parsing. -- When building contribs/perlapi ignore both INSTALL_BASE and PERL_MM_OPT. Use PREFIX instead to avoid build errors from multiple installation specifications. -- Add job_submit/cnode plugin to support resource reservations of less than a full midplane on BlueGene computers. Treat cnodes as liceses which can be reserved and are consumed by jobs. This reservation mechanism for less than an entire midplane is still under development. -- Clear a job's "reason" field when a held job is released. -- When releasing a held job, calculate a new priority for it rather than just setting the priority to 1. -- Fix for sview started on a non-bluegene system to pick colors correctly when talking to a real bluegene system. -- Improve sched/backfill's expected start time calculation. -- Prevent abort of sacctmgr for dump command with invalid (or no) filename. -- Improve handling of job updates when using limits in accounting, and updating jobs as a non-admin user. -- Fix for "squeue --states=all" option. Bug would show no jobs. -- Schedule jobs with reservations before those without reservations. -- Fix squeue/scancel to query correctly against accounts of different case. -- Abort an srun command when it's associated job gets aborted due to a dependency that can not be satisfied. -- In jobcomp plugins, report start time of zeroif pending job is cancelled. Previously may report expected start time. -- Fixed sacctmgr man to state correct variables. -- Select nodes based upon their Weight when job allocation requests include a constraint field with a count (e.g. "srun --constraint=gpu*2 -N4 a.out"). -- Add support for user names that are entirely numeric and do not treat them as UID values. Patch from Dennis Leepow. -- Patch to un/pack double values properly if negative value. Patch from Dennis Leepow -- Do not reset a job's priority when requeued or suspended. -- Fix problemm that could let new jobs start on a node in DRAINED state. -- Fix cosmetic sacctmgr issue where if the user you are trying to add doesn't exist in the /etc/passwd file and the account you are trying to add them to doesn't exist it would print (null) instead of the bad account name. -- Fix associations/qos for when adding back a previously deleted object the object will be cleared of all old limits. -- BLUEGENE - Added back a lock when creating dynamic blocks to be more thread safe on larger systems with heavy load. * Changes in SLURM 2.2.3 ======================== -- Update srun, salloc, and sbatch man page description of --distribution option. Patches from Rod Schulz, Bull. -- Applied patch from Martin Perry to fix "Incorrect results for task/affinity block second distribution and cpus-per-task > 1" bug. -- Avoid setting a job's eligible time while held (priority == 0). -- Substantial performance improvement to backfill scheduling. Patch from Bjorn-Helge Mevik, University of Oslo. -- Make timeout for communications to the slurmctld be based upon the MessageTimeout configuration parameter rather than always 3 seconds. Patch from Matthieu Hautreux, CEA. -- Add new scontrol option of "show aliases" to report every NodeName that is associated with a given NodeHostName when running multiple slurmd daemons per compute node (typically used for testing purposes). Patch from Matthieu Hautreux, CEA. -- Fix for handling job names with a "'" in the name within MySQL accounting. Patch from Gerrit Renker, CSCS. -- Modify condition under which salloc execution delayed until moved to the foreground. Patch from Gerrit Renker, CSCS. Job control for interactive salloc sessions: only if ... a) input is from a terminal (stdin has valid termios attributes), b) controlling terminal exists (non-negative tpgid), c) salloc is not run in allocation-only (--no-shell) mode, d) salloc runs in its own process group (true in interactive shells that support job control), e) salloc has been configured at compile-time to support background execution and is not currently in the background process group. -- Abort salloc if no controlling terminal and --no-shell option is not used ("setsid salloc ..." is disabled). Patch from Gerrit Renker, CSCS. -- Fix to gang scheduling logic which could cause jobs to not be suspended or resumed when appropriate. -- Applied patch from Martin Perry to fix "Slurmd abort when using task affinity with plane distribution" bug. -- Applied patch from Yiannis Georgiou to fix "Problem with cpu binding to sockets option" behaviour. This change causes "--cpu_bind=sockets" to bind tasks only to the CPUs on each socket allocated to the job rather than all CPUs on each socket. -- Advance daily or weekly reservations immediately after termination to avoid having a job start that runs into the reservation when later advanced. -- Fix for enabling users to change there own default account, wckey, or QOS. -- BLUEGENE - If using OVERLAP mode fixed issue with multiple overlapping blocks in error mode. -- Fix for sacctmgr to display correctly default accounts. -- scancel -s SIGKILL will always sent the RPC to the slurmctld rather than the slurmd daemon(s). This insures that tasks in the process of getting spawned are killed. -- BLUEGENE - If using OVERLAP mode fixed issue with jobs getting denied at submit if the only option for their job was overlapping a block in error state. * Changes in SLURM 2.2.2 ======================== -- Correct logic to set correct job hold state (admin or user) when setting the job's priority using scontrol's "update jobid=..." rather than its "hold" or "holdu" commands. -- Modify squeue to report unset --mincores, --minthreads or --extra-node-info values as "*" rather than 65534. Patch from Rod Schulz, BULL. -- Report the StartTime of a job as "Unknown" rather than the year 2106 if its expected start time was too far in the future for the backfill scheduler to compute. -- Prevent a pending job reason field from inappropriately being set to "Priority". -- In sched/backfill with jobs having QOS_FLAG_NO_RESERVE set, then don't consider the job's time limit when attempting to backfill schedule. The job will just be preempted as needed at any time. -- Eliminated a bug in sbatch when no valid target clusters are specified. -- When explicitly sending a signal to a job with the scancel command and that job is in a pending state, then send the request directly to the slurmctld daemon and do not attempt to send the request to slurmd daemons, which are not running the job anyway. -- In slurmctld, properly set the up_node_bitmap when setting it's state to IDLE (in case the previous node state was DOWN). -- Fix smap to process block midplane names correctly when on a bluegene system. -- Fix smap to once again print out the Letter 'ID' for each line of a block/ partition view. -- Corrected the NOTES section of the scancel man page -- Fix for accounting_storage/mysql plugin to correctly query cluster based transactions. -- Fix issue when updating database for clusters that were previously deleted before upgrade to 2.2 database. -- BLUEGENE - Handle mesh torus check better in dynamic mode. -- BLUEGENE - Fixed race condition when freeing block, most likely only would happen in emulation. -- Fix for calculating used QOS limits correctly on a slurmctld reconfig. -- BLUEGENE - Fix for bad conn-type set when running small blocks in HTC mode. -- If salloc's --no-shell option is used, then do not attempt to preserve the terminal's state. -- Add new SLURM configure time parameter of --disable-salloc-background. If set, then salloc can only execute in the foreground. If started in the background, then a message will be printed and the job allocation halted until brought into the foreground. NOTE: THIS IS A CHANGE IN DEFAULT SALLOC BEHAVIOR FROM V2.2.1, BUT IS CONSISTENT WITH V2.1 AND EARLIER. -- Added the Multi-Cluster Operation web page. -- Removed remnant code for enforcing max sockets/cores/threads in the cons_res plugin (see last item in 2.1.0-pre5). This was responsible for a bug reported by Rod Schultz. -- BLUEGENE - Set correct env vars for HTC mode on a P system to get correct block. -- Correct RunTime reported by "scontrol show job" for pending jobs. * Changes in SLURM 2.2.1 ======================== -- Fix setting derived exit code correctly for jobs that happen to have the same jobid. -- Better checking for time overflow when rolling up in accounting. -- Add scancel --reservation option to cancel all jobs associated with a specific reservation. -- Treat reservation with no nodes like one that starts later (let jobs of any size get queued and do not block any pending jobs). -- Fix bug in gang scheduling logic that would temporarily resume to many jobs after a job completed. -- Change srun message about job step being deferred due to SlurmctldProlog running to be more clear and only print when --verbose option is used. -- Made it so you could remove the hold on jobs with sview by setting the priority to infinite. -- BLUEGENE - better checking small blocks in dynamic mode whether a full midplane job could run or not. -- Decrease the maximum sleep time between srun job step creation retry attempts from 60 seconds to 29 seconds. This should eliminate a possible synchronization problem with gang scheduling that could result in job step creation requests only occuring when a job is suspended. -- Fix to prevent changing a held job's state from HELD to DEPENDENCY until the job is released. Patch from Rod Schultz, Bull. -- Fixed sprio -M to reflect PriorityWeight values from remote cluster. -- Fix bug in sview when trying to update arbitrary field on more than one job. Formerly would display information about one job, but update next selected job. -- Made it so QOS with UsageFactor set to 0 would make it so jobs running under that QOS wouldn't add time to fairshare or association/qos limits. -- Fixed issue where QOS priority wasn't re-normalized until a slurmctld restart when a QOS priority was changed. -- Fix sprio to use calculated numbers from slurmctld instead of calulating it own numbers. -- BLUEGENE - fixed race condition with preemption where if the wind blows the right way the slurmctld could lock up when preempting jobs to run others. -- BLUEGENE - fixed epilog to wait until MMCS job is totally complete before finishing. -- BLUEGENE - more robust checking for states when freeing blocks. -- Added correct files to the slurm.spec file for correct perl api rpm creation. -- Added flag "NoReserve" to a QOS to make it so all jobs are created equal within a QOS. So if larger, higher priority jobs are unable to run they don't prevent smaller jobs from running even if running the smaller jobs delay the start of the larger, higher priority jobs. -- BLUEGENE - Check preemptees one by one to preempt lower priority jobs first instead of first fit. -- In select/cons_res, correct handling of the option SelectTypeParameters=CR_ONE_TASK_PER_CORE. -- Fix for checking QOS to override partition limits, previously if not using QOS some limits would be overlooked. -- Fix bug which would terminate a job step if any of the nodes allocated to it were removed from the job's allocation. Now only the tasks on those nodes are terminated. -- Fixed issue when using a storage_accounting plugin directly without the slurmDBD updates weren't always sent correctly to the slurmctld, appears to OS dependent, reported by Fredrik Tegenfeldt. * Changes in SLURM 2.2.0 ======================== -- Change format of Duration field in "scontrol show reservation" output from an integer number of minutes to "[days-]hours:minutes:seconds". -- Add support for changing the reservation of pending or running jobs. -- On Cray systems only, salloc sends SIGKILL to spawned process group when job allocation is revoked. Patch from Gerrit Renker, CSCS. -- Fix for sacctmgr to work correctly when modifying user associations where all the associations contain a partition. -- Minor mods to salloc signal handling logic: forwards more signals and releases allocation on real-time signals. Patch from Gerrit Renker, CSCS. -- Add salloc logic to preserve tty attributes after abnormal exit. Patch from Mark Grondona, LLNL. -- BLUEGENE - Fix for issue in dynamic mode when trying to create a block overlapping a block with no job running on it but in configuring state. -- BLUEGENE - Speedup by skipping blocks that are deallocating for other jobs when starting overlapping jobs in dynamic mode. -- Fix for sacct --state to work correctly when not specifying a start time. -- Fix upgrade process in accounting from 2.1 for clusters named "cluster". -- Export more jobacct_common symbols needed for the slurm api on some systems. * Changes in SLURM 2.2.0.rc4 ============================ -- Correction in logic to spread out over time highly parallel messages to minimize lost messages. Effects slurmd epilog complete messages and PMI key-pair transmissions. Patch from Gerrit Renker, CSCS. -- Fixed issue where if a system has unset messages to the dbd in 2.1 and upgrades to 2.2. Messages are now processed correctly now. -- Fixed issue where assoc_mgr cache wasn't always loaded correctly if the slurmdbd wasn't running when the slurmctld was started. -- Make sure on a pthread create in step launch that the error code is looked at. Improves fault-tolerance of slurmd. -- Fix setting up default acct/wckey when upgrading from 2.1 to 2.2. -- Fix issue with associations attached to a specific partition with no other association, and requesting a different partition. -- Added perlapi to the slurmdb to the slurm.spec. -- In sched/backfill, correct handling of CompleteWait parameter to avoid backfill scheduling while a job is completing. Patch from Gerrit Renker, CSCS. -- Send message back to user when trying to launch job on computing lacking that user ID. Patch from Hongjia Cao, NUDT. -- BLUEGENE - Fix it so 1 midplane clusters will run small block jobs. -- Add Command and WorkDir to the output of "scontrol show job" for job allocations created using srun (not just sbatch). -- Fixed sacctmgr to not add blank defaultqos' when doing a cluster dump. -- Correct processing of memory and disk space specifications in the salloc, sbatch, and srun commands to work properly with a suffix of "MB", "GB", etc. and not only with a single letter (e.g. "M", "G", etc.). -- Prevent nodes with suspended jobs from being powered down by SLURM. -- Normalized the way pidfile are created by the slurm daemons. -- Fixed modifying the root association to no read in it's last value when clearing a limit being set. -- Revert some resent signal handling logic from salloc so that SIGHUP sent after the job allocation will properly release the allocation and cause salloc to exit. -- BLUEGENE - Fix for recreating a block in a ready state. -- Fix debug flags for incorrect logic when dealing with DEBUG_FLAG_WIKI. -- Report reservation's Nodes as a hostlist expression of all nodes rather than using "ALL". -- Fix reporting of nodes in BlueGene reservation (was reporting CPU count rather than cnode count in scontrol output for NodeCnt field). * Changes in SLURM 2.2.0.rc3 ============================ -- Modify sacctmgr command to accept plural versions of options (e.g. "Users" in addition to "User"). Patch from Don Albert, BULL. -- BLUEGENE - make it so reset of boot counter happens only on state change and not when a new job comes along. -- Modify srun and salloc signal handling so they can be interrupted while waiting for an allocation. This was broken in version 2.2.0.rc2. -- Fix NULL pointer reference in sview. Patch from Gerrit Renker, CSCS. -- Fix file descriptor leak in slurmstepd on spank_task_post_fork() failure. Patch from Gerrit Renker, CSCS. -- Fix bug in preserving job state information when upgrading from SLURM version 2.1. Bug introduced in version 2.2.0-pre10. Patch from Par Andersson, NSC. -- Fix bug where if using the slurmdbd if a job wasn't able to start right away some accounting information may be lost. -- BLUEGENE - when a prolog failure happens the offending block is put in an error state. -- Changed the last column heading of the sshare output from "FS Usage" to "FairShare" and added more detail to the sshare man page. -- Fix bug in enforcement of reservation by account name. Used wrong index into an array. Patch from Gerrit Renker, CSCS. -- Modify job_submit/lua plugin to treat any non-zero return code from the job_submit and job_modify functions as an error and the user request should be aborted. -- Fix bug which would permit pending job to be started on completing node when job preemption is configured. * Changes in SLURM 2.2.0.rc2 ============================ -- Fix memory leak in job step allocation logic. Patch from Hongjia Cao, NUDT. -- If a preempted job was submitted with the --no-requeue option then cancel rather than requeue it. -- Fix for problems when adding a user for the first time to a new cluster with a 2.1 sacctmgr without specifying a default account. -- Resend TERMINATE_JOB message only to nodes that the job still has not terminated on. Patch from Hongjia Cao, NUDT. -- Treat time limit specification of "0:300" as a request for 300 seconds (5 minutes) instead of one minute. -- Modify sched/backfill plugin logic to continue working its way down the queue of jobs rather than restarting at the top if there are no changes in job, node, or partition state between runs. Patch from Hongjia Cao, NUDT. -- Improve scalability of select/cons_res logic. Patch from Matthieu Hautreux, CEA. -- Fix for possible deadlock in the slurmstepd when cancelling a job that is also writing a large amount of data to stderr. -- Fix in select/cons_res to eliminate "mem underflow" error when the slurmctld is reconfigured while a job is in completing state. -- Send a message to the a user's job when it's real or virual memory limit is exceeded. : -- Apply rlimits right before execing the users task so to lower the risk of the task exiting because the slurmstepd ran over a limit (log file size, etc.) -- Add scontrol command of "uhold " so that an administrator can hold a job and let the job's owner release it. The scontrol command of "hold " when executed by a SLURM administrator can only be released by a SLURM administrator and not the job owner. -- Change atoi to slurm_atoul in mysql plugin, needed for running on 32-bit systems in some cases. -- If a batch job is found to be missing from a node, make its termination state be NODE_FAIL rather than CANCELLED. -- Fatal error put back if running a bluegene or cray plugin from a controller not of that type. -- Make sure jobacct_gather plugin is not shutdown before messing with the proccess list. -- Modify signal handling in srun and salloc commands to avoid deadlock if the malloc function is interupted and called again. The malloc function is thread safe, but not reentrant, which is a problem when signal handling if the malloc function itself has a lock. Problem fixed by moving signal handling in those commands to a new pthread. -- In srun set job abort flag on completion to handle the case when a user cancels a job while the node is not responding but slurmctld has not yet the node down. Patch from Hongjia Cao, NUDT. -- Streamline the PMI logic if no duplicate keys are included in the key-pairs managed. Substantially improves performance for large numbers of tasks. Adds support for SLURM_PMI_KVS_NO_DUP_KEYS environment variable. Patch from Hongjia Cao, NUDT. -- Fix issues with sview dealing with older versions of sview and saving defaults. -- Remove references to --mincores, --minsockets, and --minthreads from the salloc, sbatch and srun man pages. These options are defunct, Patch from Rod Schultz, Bull. -- Made openssl not be required to build RPMs, it is not required anymore since munge is the default crypto plugin. -- sacctmgr now has smarts to figure out if a qos is a default qos when modifing a user/acct or removing a qos. -- For reservations on BlueGene systems, set and report c-node counts rather than midplane counts. * Changes in SLURM 2.2.0.rc1 ============================ -- Add show_flags parameter to the slurm_load_block_info() function. -- perlapi has been brought up to speed courtesy of Hongjia Coa. (make sure to run 'make clean' if building in a different dir than source) -- Fixed regression in pre12 in crypto/munge when running with --enable-multiple-slurmd which would cause the slurmd's to core. -- Fixed regression where cpu count wasn't figured out correctly for steps. -- Fixed issue when using old mysql that can't handle a '.' in the table name. -- Mysql plugin works correctly without the SlurmDBD -- Added ability to query batch step with sstat. Currently no accounting data is stored for the batch step, but the internals are inplace if we decide to do that in the future. -- Fixed some backwards compatibility issues with 2.2 talking to 2.1. -- Fixed regression where modifying associations didn't get sent to the slurmctld. -- Made sshare sort things the same way saccmgr list assoc does (alphabetically) -- Fixed issue with default accounts being set up correctly. -- Changed sortting in the slurmctld so sshare output is similar to that of sacctmgr list assoc. -- Modify reservation logic so that daily and weekly reservations maintain the same time when daylight savings time starts or ends in the interim. -- Edit to make reservations handle updates to associations. -- Added the derived exit code to the slurmctld job record and the derived exit code and string to the job record in the SLURM db. -- Added slurm-sjobexit RPM for SLURM job exit code management tools. -- Added ability to use sstat/sacct against the batch step. -- Added OnlyDefaults option to sacctmgr list associations. -- Modified the fairshare priority formula to F = 2**(-Ue/S) -- Modify the PMI functions key-pair exchange function to support a 32-bit counter for larger job sizes. Patch from Hongjia Cao, NUDT. -- In sched/builtin - Make the estimated job start time logic faster (borrowed new logic from sched/backfill and added pthread) and more accurate. -- In select/cons_res fix bug that could result in a job being allocated zero CPUs on some nodes. Patch from Hongjia Cao, NUDT. -- Fix bug in sched/backfill that could set expected start time of a job too far in the future. -- Added ability to enforce new limits given to associations/qos on pending jobs. -- Increase max message size for the slurmdbd from 1000000 to 16*1024*1024 -- Increase number of active threads in the slurmdbd from 50 to 100 -- Fixed small bug in src/common/slurmdb_defs.c reported by Bjorn-Helge Mevik -- Fixed sacctmgr's ability to query associations against qos again. -- Fixed sview show config on non-bluegene systems. -- Fixed bug in selecting jobs based on sacct -N option -- Fix bug that prevented job Epilog from running more than once on a node if a job was requeued and started no job steps. -- Fixed issue where node index wasn't stored correcting when using DBD. -- Enable srun's use of the --nodes option with --exclusive (previously the --nodes option was ignored). -- Added UsageThreshold and Flags to the QOS object. -- Patch to improve threadsafeness in the mysql plugins. -- Add support for fair-share scheduling to be based upon resource use at the level of bank accounts and ignore use of individual users. Patch by Par Andersson, National Supercomputer Centre, Sweden. * Changes in SLURM 2.2.0.pre12 ============================== -- Log if Prolog or Epilog run for longer than MessageTimeout / 2. -- Log the RPC number associated with messages from slurmctld that timeout. -- Fix bug in select/cons_res logic when job allocation includes --overcommit and --ntasks-per-node options and the node has fewer CPUs than the count specified by --ntasks-per-node. -- Fix bug in gang scheduling and job preemption logic so that preempted jobs get resumed properly after a slurmctld hot-start. -- Fix bug in select/linear handling of gang scheduled jobs that could result in run_job_cnt underflow error message. -- Fix bug in gang scheduling logic to properly support partitions added using the scontrol command. -- Fix a segmentation fault in sview where the 'excluded_partitions' field was set to NULL, caused by the absence of ~/.slurm/sviewrc. -- Rewrote some calls to is_user_any_coord() in src/plugins/accounting_storage modules to make use of is_user_any_coord()'s return value. -- Add configure option of --with=dimensions=#. -- Modify srun ping logic so that srun would only be considered not responsive if three ping messages were not responded to. Patch from Hongjia Cao (NUDT). -- Preserve a node's ReasonTime field after scontrol reconfig command. Patch from Hongjia Cao (NUDT). -- Added the authority for users with AdminLevel's defined in the SLURM db (Operators and Admins) and account coordinators to invoke commands that affect jobs, reservations, nodes, etc. -- Fix for slurmd restart on completing node with no tasks to get the correct state, completing. Patch from Hongjia Cao (NUDT). -- Prevent scontrol setting a node's Reason="". Patch from Hongjia Cao (NUDT). -- Add new functions hostlist_ranged_string_malloc, hostlist_ranged_string_xmalloc, hostlist_deranged_string_malloc, and hostlist_deranged_string_xmalloc which will allocate memory as needed. -- Make the slurm commands support both the --cluster and --clusters option. Previously, some commands support one of those options, but not the other. -- Fix bug when resizing a job that has steps running on some of those nodes. Avoid killing the job step on remaining nodes. Patch from Rod Schultz (BULL). Also fix bug related to tracking the CPUs allocated to job steps on each node after releasing some nodes from the job's allocation. -- Applied patch from Rod Schultz / Matthieu Hautreux to keep the Node-to-Host cache from becoming corrupted when a hostname cannot be resolved. -- Export more symbols in libslurm for job and node state information translation (numbers to strings). Patch from Hongia Cao, NUDT. -- Add logic to retry sending RESPONSE_LAUNCH_TASKS messages from slurmd to srun. Patch from Hongia Cao, NUDT. -- Modify bit_unfmt_hexmask() and bit_unfmt_binmask() functions to clear the bitmap input before setting the bits indicated in the input string. -- Add SchedulerParameters option of bf_window to control how far into the future that the backfill scheduler will look when considering jobs to start. The default value is one day. See "man slurm.conf" for details. -- Fix bug that can result in duplicate job termination records in accounting for job termination when slurmctld restarts or reconfigures. -- Modify plugin and library logic as needed to support use of the function slurm_job_step_stat() from user commands. -- Fix race condition in which PrologSlurmctld failure could cause slurmctld to abort. -- Fix bug preventing users in secondary user groups from being granted access to partitions configured with AllowGroups. -- Added support for a default account and wckey per cluster within accounting. -- Modified select/cons_res plugin so that if MaxMemPerCPU is configured and a job specifies it's memory requirement, then more CPUs than requested will automatically be allocated to a job to honor the MaxMemPerCPU parameter. -- Added the derived_ec (exit_code) member to job_info_t. exit_code captures the exit code of the job script (or salloc) while derived_ec contains the highest exit code of all the job steps. -- Added SLURM_JOB_EXIT_CODE and SLURM_JOB_DERIVED_EC variables to the EpilogSlurmctld environment -- More work done on the accounting_storage/pgsql plugin, still beta. Patch from Hongjia Cao (NUDT). -- Major updates to sview from Dan Rusak (Bull), including: - Persistent option selections for each tab page - Clean up topology in grids - Leverage AllowGroups and Hidden options - Cascade full-info popups for ease of selection -- Add locks around the MySQL calls for proper operation if the non-thread safe version of the MySQL library is used. -- Remove libslurm.a, libpmi.a and libslurmdb.a from SLURM RPM. These static libraries are not generally usable. -- Fixed bug in sacctmgr when zeroing raw usage reported by Gerrit Renker. * Changes in SLURM 2.2.0.pre11 ============================== -- Permit a regular user to change the partition of a pending job. -- Major re-write of the job_submit/lua plugin to pass pointers to available partitions and use lua metatables to reference the job and partition fields. -- Add support for serveral new trigger types: SlurmDBD failure/restart, Database failure/restart, Slurmctld failure/restart. -- Add support for SLURM_CLUSTERS environment variable in the sbatch, sinfo, squeue commands. -- Modify the sinfo and squeue commands to report state of multiple clusters if the --clusters option is used. -- Added printf __attribute__ qualifiers to info, debug, ... to help prevent bad/incorrect parameters being sent to them. Original patch from Eygene Ryabinkin (Russian Research Centre). -- Fix bug in slurmctld job completion logic when nodes allocated to a completing job are re-booted. Patch from Hongjia Cao (NUDT). -- In slurmctld's node record data structure, rename "hilbert_integer" to "node_rank". -- Add topology/node_rank plugin to sort nodes based upon rank loaded from BASIL on Cray computers. -- Fix memory leak in the auth/munge and crypto/munge plugins in the case of some failure modes. * Changes in SLURM 2.2.0.pre10 ============================== -- Fix issue when EnforcePartLimits=yes in slurm.conf all jobs where no nodecnt was specified the job would be seen to have maxnodes=0 which would not allow jobs to run. -- Fix issue where if not suspending a job the gang scheduler does the correct kill procedure. -- Fixed some issues when dealing with jobs from a 2.1 system so they live after an upgrade. -- In srun, log if --cpu_bind options are specified, but not supported by the current system configuration. -- Various Patchs from Hongjia Cao dealing with bugs found in sacctmgr and the slurmdbd. -- Fix bug in changing the nodes allocated to a running job and some node names specified are invalid, avoid invalid memory reference. -- Fixed filename substitution of %h and %n based on patch from Ralph Bean -- Added better job sorting logic when preempting jobs with qos. -- Log the IP address and port number for some communication errors. -- Fix bug in select/cons_res when --cpus_per_task option is used, could oversubscribe resources. -- In srun, do not implicitly set the job's maximum node count based upon a required hostlist. -- Avoid running the HealthCheckProgram on non-responding nodes rather than DOWN nodes. -- Fix bug in handling of poll() functions on OS X (SLURM was ignoring POLLIN if POLLHUP flag was set at the same time). -- Pulled Cray logic out of common/node_select.c into it's own select/cray plugin cons_res is the default. To use linear add 'Linear' to SelectTypeParameters. -- Fixed bug where resizing jobs didn't correctly set used limits correctly. -- Change sched/backfill default time interval to 30 seconds and defer attempt to backfill schedule if slurmctld has more than 5 active RPCs. General improvements in logic scalability. -- Add SchedulerParameters option of default_sched_depth=# to control how many jobs on queue should be tested for attempted scheduling when a job completes or other routine events. Default value is 100 jobs. The full job queue is tested on a less frequent basis. This option can dramatically improve performance on systems with thousands of queued jobs. -- Gres/gpu now sets the CUDA_VISIBLE_DEVICES environment to control which GPU devices should be used for each job or job step and CUDA version 3.1+ is used. NOTE: SLURM's generic resource support is still under development. -- Modify select/cons_res to pack jobs onto allocated nodes differently and minimize system fragmentation. For example on nodes with 8 CPUs each, a job needing 10 CPUs will now ideally be allocated 8 CPUs on one node and 2 CPUs on another node. Previously the job would have ideally been allocated 5 CPUs on each node, fragmenting the unused resources more. -- Modified the behavior of update_job() in job_mgr.c to return when the first error is encountered instead of continuing with more job updates. -- Removed all references to the following slurm.conf parameters, all of which have been removed or replaced since version 2.0 or earlier: HashBase, HeartbeatInterval, JobAcctFrequency, JobAcctLogFile (instead use AccountingStorageLoc), JobAcctType, KillTree, MaxMemPerTask, and MpichGmDirectSupport. -- Fix bug in slurmctld restart logic that improperly reported jobs had invalid features: "Job 65537 has invalid feature list: fat". -- BLUEGENE - Removed thread pool for destroying blocks. It turns out the memory leak we were concerned about for creating and destroying threads in a plugin doesn't exist anymore. This increases throughput dramatically, allowing multiple jobs to start at the same time. -- BLUEGENE - Removed thread pool for starting and stopping jobs. For similar reasons as noted above. -- BLUEGENE - Handle blocks that never deallocate. * Changes in SLURM 2.2.0.pre9 ============================= -- sbatch can now submit jobs to multiple clusters and run on the earliest available. -- Fix bug introduced in pre8 that prevented job dependencies and job triggers from working without the --enable-debug configure option. -- Replaced slurm_addr with slurm_addr_t -- Replaced slurm_fd with slurm_fd_t -- Skeleton code added for BlueGeneQ. -- Jobs can now be submitted to multiple partitions (job queues) and use the one permitting earliest start time. -- Change slurmdb_coord_table back to acct_coord_table to keep consistant with < 2.1. -- Introduced locking system similar to that in the slurmctld for the assoc_mgr. -- Added ability to change a users name in accounting. -- Restore squeue support for "%G" format (group id) accidentally removed in 2.2.0.pre7. -- Added preempt_mode option to QOS. -- Added a grouping=individual for sreport size reports. -- Added remove_qos logic to jobs running under a QOS that was removed. -- scancel now exits with a 1 if any job is non-existant when canceling. -- Better handling of select plugins that don't exist on various systems for cross cluster communication. Slurmctld, slurmd, and slurmstepd now only load the default select plugin as well. -- Better error handling when loading plugins. -- Prevent scontrol from aborting if getlogin() returns NULL. -- Prevent scontrol segfault when there are hidden nodes. -- Prevent srun segfault after task launch failure. -- Added job_submit/lua plugin. -- Fixed sinfo on a bluegene system to print correctly the output for: sinfo -e -o "%9P %6m %.4c %.22F %f" -- Add scontrol commands "hold" and "release" to simplify setting a job's priority to 0 or 1. Also tests that the job is in pending state. -- Increase maximum node list size (for incoming RPC) from 1024 bytes to 64k. -- In the backup slurmctld, purge triggers before recovering trigger state to avoid duplicate entries. -- Fix bug in sacct processing of --fields= option. -- Fix bug in checkpoint/blcr for jobs spanning multiple nodes introduced when changing some variable names in version 2.2.0.pre5. -- Removed the vestigal set_max_cluster_usage() function from the Priority Plugin API. -- Modify the output of "scontrol show job" for the field ReqS:C:T=. Fields not specified by the user will be reported as "*" instead of 65534. -- Added DefaultQOS option for an association. -- BLUEGENE - Added -B option to the slurmctld to clear created blocks from the system on start. -- BLUEGENE - Added option to scontrol & sview to recreate existing blocks. -- Fixed flags for returning messages to use the correct munge key when going cross-cluster. -- BLUEGENE - Added option to scontrol & sview to resume blocks in an error state instead of just freeing them. -- sview patched to allow multiple row selection of jobs, patch from Dan Rusak -- Lower default slurmctld server thread count from 1024 to 256. Some systems process threads on a last-in first-out basis and the high thread count was causing unexpectedly high delays for some RPCs. -- Added to sacctmgr the ability for admins to reset the raw usage of a user or account -- Improved the efficiency of a few lines in sacctmgr * Changes in SLURM 2.2.0.pre8 ============================= -- Add DebugFlags parameter of "Backfill" for sched/backfill detailed logging. -- Add DebugFlags parameter of "Gang" for detailed logging of gang scheduling activities. -- Add DebugFlags parameter of "Priority" for detailed logging of priority multifactor activities. -- Add DebugFlags parameter of "Reservation" for detailed logging of advanced reservations. -- Add run time to mail message upon job termination and queue time for mail message upon job begin. -- Add email notification option for job requeue. -- Generate a fatal error if the srun --relative option is used when not within an existing job allocation. -- Modify the meaning of InactiveLimit slightly. It will now cancel the job allocation created using the salloc or srun command if those commands cease responding for the InactiveLimit regardless of any running job steps. This parameter will no longer effect jobs spawned using sbatch. -- Remove AccountingStoragePass and JobCompPass from configuration RPC and scontrol show config command output. The use of SlurmDBD is still strongly recommended as SLURM will have limited database functionality or protection otherwise. -- Add sbatch options of --export and SBATCH_EXPORT to control which environment variables (if any) get propagated to the spawned job. This is particularly important for jobs that are submitted on one cluster and run on a different cluster. -- Fix bug in select/linear when used with gang scheduling and there are preempted jobs at the time slurmctld restarts that can result in over- subscribing resources. -- Added keeping track of the qos a job is running with in accounting. -- Fix for handling correctly jobs that resize, and also reporting correct stats on a job after it finishes. -- Modify gang scheduler so with SelectTypeParameter=CR_CPUS and task affinity is enabled, keep track of the individual CPUs allocated to jobs rather than just the count of CPUs allocated (which could overcommit specific CPUs for running jobs). -- Modify select/linear plugin data structures to eliminate underflow errors for the exclusive_cnt and tot_job_cnt variables (previously happened when slurmctld reconfigured while the job was in completing state). -- Change slurmd's working directory (and location of core files) to match that of the slurmctld daemon: the same directory used for log files, SlurmdLogFile (if specified with an absolute pathname) otherwise the directory used to save state, SlurmdSpoolDir. -- Add sattach support for the --pty option. -- Modify slurmctld communications logic to accept incoming messages on more than one port for improved scalability. -- Add SchedulerParameters option of "defer" to avoid trying to schedule a job at submission time, but to attempt scheduling many jobs at once for improved performance under heavy load. -- Correct logic controlling slurmctld thread limit eliminating check of RLIMIT_STACK. -- Make slurmctld's trigger logic more robust in the event that job records get purged before their trigger can be processed (e.g. MinJobAge=1). -- Add support for users to hold/release their own jobs (submit the job with srun/sbatch --hold/-H option or use "scontrol update jobid=# priority=0" to hold and "scontrol update jobid=# priority=1" to release). -- Added ability for sacct to query jobs by qos and a range of timelimits. -- Added ability for sstat to query pids of steps running. -- Support time specification in UTS format with a prefix of "uts" (e.g. "sbatch --begin=uts458389988 my.script"). * Changes in SLURM 2.2.0.pre7 ============================= -- Fixed issue with sacctmgr if querying against non-existent cluster it works the same way as 2.1. -- Added infrastructure to support allocation of generic node resources (gres). -Modified select/linear and select/cons_res plugins to allocate resources at the level of a job without oversubcription. -Get sched/backfill operating with gres allocations. -Get gres configuration changes (reconfiguration) working. -Have job steps allocate resources. -Modified job step credential to include the job's and step's gres allocation details. -Integrate with HWLOC library to identify GPUs and NICs configured on each node. -- SLURM commands (squeue, sinfo, etc...) can now go cross-cluster on like linux systems. Cross-cluster for bluegene to linux and such should work fine, even sview. -- Added the ability to configure PreemptMode on a per-partition basis. -- Change slurmctld's default thread limit count to 1024, but adjust that down as needed based upon the process's resource limits. -- Removed the non-functional "SystemCPU" and "TotalCPU" reporting fields from sstat and updated man page -- Correct location of apbasil command on Cray XT systems. -- Fixed bug in MinCPU and AveCPU calculations in sstat command -- Send message to srun when the Prolog takes too long (MessageTimeout) to complete. -- Change timeout for socket connect() to be half of configured MessageTimeout. -- Added high-throughput computing web page with configuration guidance. -- Use more srun sockets to process incoming PMI (MPICH2) connections for better scalability. -- Added DebugFlags for the select/bluegene plugin: DEBUG_FLAG_BG_PICK, DEBUG_FLAG_BG_WIRES, DEBUG_FLAG_BG_ALGO, and DEBUG_FLAG_BG_ALGO_DEEP. -- Remove vestigial job record field "kill_on_step_done" (internal to the slurmctld daemon only). -- For MPICH2 jobs: Clear PMI state between job steps. * Changes in SLURM 2.2.0.pre6 ============================= -- sview - added ability to see database configuration. -- sview - added ability to add/remove visible tabs. -- sview - change way grid highlighting takes place on selected objects. -- Added infrastructure to support allocation of generic node resources. -Added node configuration parameter of Gres=. -Added ability to view/modify a node's gres using scontrol, sinfo and sview. -Added salloc, sbatch and srun --gres option. -Added ability to view a job or job step's gres using scontrol, squeue and sview. -Added new configuration parameter GresPlugins to define plugins used to manage generic resources. -Added framework for gres plugins. -Added DebugFlags option of "gres" for detailed debugging of gres actions. -- Slurmd modified to log slow slurmstepd startup and note possible file system problem. -- sview - There is now a .slurm/sviewrc created when running sview. Defaults are put in there as to how sview looks when first launched. You can set these by Ctrl-S or Options->Set Default Settings. -- Add scontrol "wait_job " option to wait for nodes to boot as needed. Useful for batch jobs (in Prolog, PrologSlurmctld or the script) if powering down idle nodes. -- Added salloc and sbatch option --wait-all-nodes. If set non-zero, job initiation will be delayed until all allocated nodes have booted. Salloc will log the delay with the messages "Waiting for nodes to boot" and "Nodes are ready for job". -- The Priority/mulitfactor plugin now takes into consideration size of job in cpus as well as size in nodes when looking at the job size factor. Previously only nodes were considered. -- When using the SlurmDBD messages waiting to be sent will be combined and sent in one message. -- Remove srun's --core option. Move the logic to an optional SPANK plugin (currently in the contribs directory, but plan to distribute through http://code.google.com/p/slurm-spank-plugins/). -- Patch for adding CR_CORE_DEFAULT_DIST_BLOCK as a select option to layout jobs using block layout across cores within each node instead of cyclic which was previously the default. -- Accounting - When removing associations if jobs are running, those jobs must be killed before proceeding. Before the jobs were killed automatically thus causing user confusion on what is most likely an admin's mistake. -- sview - color column keeps reference color when highlighting. -- Configuration parameter MaxJobCount changed from 16-bit to 32-bit field. The default MaxJobCount was changed from 5,000 to 10,000. -- SLURM commands (squeue, sinfo, etc...) can now go cross-cluster on like linux systems. Cross-cluster for bluegene to linux and such does not currently work. You can submit jobs with sbatch. Salloc and srun are not cross-cluster compatible, and given their nature to talk to actual compute nodes these will likely never be. -- salloc modified to forward SIGTERM to the spawned program. -- In sched/wiki2 (for Moab support) - Add GRES and WCKEY fields to MODIFYJOBS and GETJOBS commands. Add GRES field to GETNODES command. -- In struct job_descriptor and struct job_info: rename min_sockets to sockets_per_node, min_cores to cores_per_socket, and min_threads to threads_per_core (the values are not minimum, but represent the target values). -- Fixed bug in clearing a partition's DisableRootJobs value reported by Hongjia Cao. -- Purge (or ignore) terminated jobs in a more timely fashion based upon the MinJobAge configuration parameter. Small values for MinJobAge should improve responsiveness for high job throughput. * Changes in SLURM 2.2.0.pre5 ============================= -- Modify commands to accept time format with one or two digit hour value (e.g. 8:00 or 08:00 or 8:00:00 or 08:00:00). -- Modify time parsing logic to accept "minute", "hour", "day", and "week" in addition to the currently accepted "minutes", "hours", etc. -- Add slurmd option of "-C" to print actual hardware configuration and exit. -- Pass EnforcePartLimits configuration parameter from slurmctld for user commands to see the correct value instead of always "NO". -- Modify partition data structures to replace the default_part, disable_root_jobs, hidden and root_only fields with a single field called "flags" populated with the flags PART_FLAG_DEFAULT, PART_FLAG_NO_ROOT PART_FLAG_HIDDEN and/or PART_FLAG_ROOT_ONLY. This is a more flexible solution besides making for smaller data structures. -- Add node state flag of JOB_RESIZING. This will only exist when a job's accounting record is being written immediately before or after it changes size. This permits job accounting records to be written for a job at each size. -- Make calls to jobcomp and accounting_storage plugins before and after a job changes size (with the job state being JOB_RESIZING). All plugins write a record for the job at each size with intermediate job states being JOB_RESIZING. -- When changing a job size using scontrol, generate a script that can be executed by the user to reset SLURM environment variables. -- Modify select/linear and select/cons_res to use resources released by job resizing. -- Added to contribs foundation for Perl extension for slurmdb library. -- Add new configuration parameter JobSubmitPlugins which provides a mechanism to set default job parameters or perform other site-configurable actions at job submit time. -- Better postgres support for accounting, still beta. -- Speed up job start when using the slurmdbd. -- Forward step failure reason back to slurmd before in some cases it would just be SLURM_FAILURE returned. -- Changed squeue to fail when passed invalid -o or -S specifications. * Changes in SLURM 2.2.0.pre4 ============================= -- Add support for a PropagatePrioProcess configuration parameter value of 2 to restrict spawned task nice values to that of the slurmd daemon plus 1. This insures that the slurmd daemon always have a higher scheduling priority than spawned tasks. -- Add support in slurmctld, slurmd and slurmdbd for option of "-n " to reset the daemon's nice value. -- Fixed slurm_load_slurmd_status and slurm_pid2jobid to work correctly when multiple slurmds are in use. -- Altered srun to set max_nodes to min_nodes if not set when doing an allocation to mimic that which salloc and sbatch do. If running a step if the max isn't set it remains unset. -- Applied patch from David Egolf (David.Egolf@Bull.com). Added the ability to purge/archive accounting data on a day or hour basis, previously it was only available on a monthly basis. -- Add support for maximum node count in job step request. -- Fix bug in CPU count logic for job step allocation (used count of CPUS per node rather than CPUs allocated to the job). -- Add new configuration parameters GroupUpdateForce and GroupUpdateTime. See "man slurm.conf" for details about how these control when slurmctld updates its information of which users are in the groups allowed to use partitions. -- Added sacctmgr list events which will list events that have happened on clusters in accounting. -- Permit a running job to shrink in size using a command of "scontrol update JobId=# NumNodes=#" or "scontrol update JobId=# NodeList=". Subsequent job steps must explicitly specify an appropriate node count to work properly. -- Added resize_time field to job record noting the time of the latest job size change (to be used for accounting purposes). -- sview/smap now hides hidden partitions and their jobs by default, with an option to display them. * Changes in SLURM 2.2.0.pre3 ============================= -- Refine support for TotalView partial attach. Add parameter to configure program of "--enable-partial-attach". -- In select/cons_res, the count of CPUs on required nodes was formerly ignored in enforcing the maximum CPU limit. Also enforce maximum CPU limit when the topology/tree plugin is configured (previously ignored). -- In select/cons_res, allocate cores for a job using a best-fit approach. -- In select/cons_res, for jobs that can run on a single node, use a best-fit packing approach. -- Add support for new partition states of DRAIN and INACTIVE and new partition option of "Alternate" (alternate partition to use for jobs submitted to partitions that are currently in a state of DRAIN or INACTIVE). -- Add group membership cache. This can substantially speed up slurmctld startup or reconfiguration if many partitions have AllowGroups configured. -- Added slurmdb api for accessing slurm DB information. -- In select/linear: Modify data structures for better performance and to avoid underflow error messages when slurmctld restarts while jobs are in completing state. -- Added hash for slurm.conf so when nodes check in to the controller it can verify the slurm.conf is the same as the one it is running. If not an error message is displayed. To silence this message add NO_CONF_HASH to DebugFlags in your slurm.conf. -- Added error code ESLURM_CIRCULAR_DEPENDENCY and prevent circular job dependencies (e.g. job 12 dependent upon job 11 AND job 11 is dependent upon job 12). -- Add BootTime and SlurmdStartTime to available node information. -- Fixed moab_2_slurmdb to work correctly under new database schema. -- Slurmd will drain a compute node when the SlurmdSpoolDir is full. * Changes in SLURM 2.2.0.pre2 ============================= -- Add support for spank_get_item() to get S_STEP_ALLOC_CORES and S_STEP_ALLOC_MEM. Support will remain for S_JOB_ALLOC_CORES and S_JOB_ALLOC_MEM. -- Kill individual job steps that exceed their memory limit rather than killing an entire job if one step exceeds its memory limit. -- Added configuration parameter VSizeFactor to enforce virtual memory limits for jobs and job steps as a percentage of their real memory allocation. -- Add scontrol ability to update job step's time limits. -- Add scontrol ability to update job's NumCPUs count. -- Add --time-min options to salloc, sbatch and srun. The scontrol command has been modified to display and modify the new field. sched/backfill plugin has been changed to alter time limits of jobs with the --time-min option if doing so permits earlier job initiation. -- Add support for TotalView symbol MPIR_partial_attach_ok with srun support to release processes which TotalView does not attach to. -- Add new option for SelectTypeParameters of CR_ONE_TASK_PER_CORE. This option will allocate one task per core by default. Without this option, by default one task will be allocated per thread on nodes with more than one ThreadsPerCore configured. -- Avoid accounting separately for a current pid corresponds to a Light Weight Process (Thread POSIX) appearing in the /proc directory. Only account for the original process (pid==tgid) to avoid accounting for memory use more than once. -- Add proctrack/cgroup plugin which uses Linux control groups (aka cgroup) to track processes on Linux systems having this feature enabled (kernel >= 2.6.24). -- Add logging of license transations including job_id. -- Add configuration parameters SlurmSchedLogFile and SlurmSchedLogLevel to support writing scheduling events to a separate log file. -- Added contribs/web_apps/chart_stats.cgi, a web app that invokes sreport to retrieve from the accounting storage db a user's request for job usage or machine utilization statistics and charts the results to a browser. -- Massive change to the schema in the storage_accounting/mysql plugin. When starting the slurmdbd the process of conversion may take a few minutes. You might also see some errors such as 'error: mysql_query failed: 1206 The total number of locks exceeds the lock table size'. If you get this, do not worry, it is because your setting of innodb_buffer_pool_size in your my.cnf file is not set or set too low. A decent value there should be 64M or higher depending on the system you are running on. See RELEASE_NOTES for more information. But setting this and then restarting the mysqld and slurmdbd will put things right. After this change we have noticed 50-75% increase in performance with sreport and sacct. -- Fix for MaxCPUs to honor partitions of 1 node that have more than the maxcpus for a job. -- Add support for "scontrol notify " to work for batch jobs. * Changes in SLURM 2.2.0.pre1 ============================= -- Added RunTime field to scontrol show job report -- Added SLURM_VERSION_NUMBER and removed SLURM_API_VERSION from slurm/slurm.h. -- Added support to handle communication with SLURM 2.1 clusters. Job's should not be lost in the future when upgrading to higher versions of SLURM. -- Added withdeleted options for listing clusters, users, and accounts -- Remove PLPA task affinity functions due to that package being deprecated. -- Preserve current partition state information and node Feature and Weight information rather than use contents of slurm.conf file after slurmctld restart with -R option or SIGHUP. Replace information with contents of slurm.conf after slurmctld restart without -R or "scontrol reconfigure". See RELEASE_NOTES file fore more details. -- Modify SLURM's PMI library (for MPICH2) to properly execute an executable program stand-alone (single MPI task launched without srun). -- Made GrpCPUs and MaxCPUs limits work for select/cons_res. -- Moved all SQL dependant plugins into a seperate rpm slurm-sql. This should be needed only where a connection to a database is needed (i.e. where the slurmdbd is running) -- Add command line option "no_sys_info" to PAM module to supress system logging of "access granted for user ...", access denied and other errors will still be logged. -- sinfo -R now has the user and timestamp in separate fields from the reason. -- Much functionality has been added to account_storage/pgsql. The plugin is still in a very beta state. It is still highly advised to use the mysql plugin, but if you feel like living on the edge or just really like postgres over mysql for some reason here you go. (Work done primarily by Hongjia Cao, NUDT.) * Changes in SLURM 2.1.17 ========================= -- Correct format of --begin reported in salloc, sbatch and srun --help message. -- Correct logic for regular users to increase nice value of their own jobs. * Changes in SLURM 2.1.16 ========================= -- Fixed minor warnings from gcc-4.5 -- Fixed initialization of accounting_stroage_enforce in the slurmctld. -- Fixed bug where if GrpNodes was lowered while pending jobs existed and where above the limit the slurmctld would seg fault. -- Fixed minor memory leak when unpack error happens on an association_shares_object_t. -- Set Lft and Rgt correctly when adding association. Fix for regression caused in 2.1.15, cosmetic fix only. -- Replaced optarg which was undefined in some spots to make sure ENV vars are set up correctly. -- When removing an account from a cluster with sacctmgr you no longer get a list of previously deleted associations. -- Fix to make jobcomp/(pg/my)sql correctly work when the database name is different than the default. * Changes in SLURM 2.1.15 ========================= -- Fix bug in which backup slurmctld can purge job scripts (and kill batch jobs) when it assumes primary control, particularly when this happens multiple times in a short time interval. -- In sched/wiki and sched/wiki2 add IWD (Initial Working Directory) to the information reported about jobs. -- Fix bug in calculating a daily or weekly reservation start time when the reservation is updated. Patch from Per Lundqvist (National Supercomputer Centre, Linköping University, Sweden). -- Fix bug in how job step memory limits are calculated when the --relative option is used. -- Restore operation of srun -X option to forward SIGINT to spawned tasks without killing them. -- Fixed a bug in calculating the root account's raw usage reported by Par Andersson -- Fixed a bug in sshare displaying account hierarchy reported by Per Lundqvist. -- In select/linear plugin, when a node allocated to a running job is removed from a partition, only log the event once. Fixes problem reported by Per Lundqvist. * Changes in SLURM 2.1.14 ========================= -- Fixed coding mistakes in _slurm_rpc_resv_show() and job_alloc_info() found while reviewing the code. -- Fix select/cons_res logic to prevent allocating resources while jobs previously allocated resources on the node are still completing. -- Fixed typo in job_mgr.c dealing with qos instead of associations. -- Make sure associations and qos' are initiated when added. -- Fixed wrong initialization for wckeys in the association manager. -- Added wiki.conf configuration parameter of HidePartitionNodes. See "man wiki.conf" for more information. -- Add "JobAggregationTime=#" field SchedulerParameter configuration parameter output. -- Modify init.d/slurm and slurmdbd scripts to prevent the possible inadvertent inclusion of "." in LD_LIBRARY_PATH environment variable. To fail, the script would need to be executed by user root or SlurmUser without the LD_LIBRARY_PATH environment variable set and there would have to be a maliciously altered library in the working directory. Thanks to Raphael Geissert for identifying the problem. This addresses security vulnerability CVE-2010-3380. * Changes in SLURM 2.1.13 ========================= -- Fix race condition which can set a node state to IDLE on slurmctld startup even if it has running jobs. * Changes in SLURM 2.1.12 ========================= -- Fixes for building on OS X 10.5. -- Fixed a few '-' without a '\' in front of them in the man pages. -- Fixed issues in client tools where a requeued job did get displayed correctly. -- Update typos in doc/html/accounting.shtml doc/html/resource_limits.shtml doc/man/man5/slurmdbd.conf.5 and doc/man/man5/slurm.conf.5 -- Fixed a bug in exitcode:signal display in sacct -- Fix bug when request comes in for consumable resources and the -c option is used in conjunction with -O -- Fixed squeue -o "%h" output formatting -- Change select/linear message "error: job xxx: best_fit topology failure" to debug type. -- BLUEGENE - Fix for sinfo -R to group all midplanes together in a single line for midplanes in an error state instead of 1 line for each midplane. -- Fix srun to work correctly with --uid when getting an allocation and creating a step, also fix salloc to assume identity at the correct time as well. -- BLUEGENE - Fixed issue with jobs being refused when running dynamic mode and every job on the system happens to be the same size. -- Removed bad #define _SLURMD_H from slurmd/get_mach_stat.h. Didn't appear to cause any problems being there, just incorrect syntax. -- Validate the job ID when salloc or srun receive an SRUN_JOB_COMPLETE RPC to avoid killing the wrong job if the original command exits and the port gets re-used by another command right away. -- Fix to node in correct state in accounting when updating it to drain from scontrol/sview. -- BLUEGENE - Removed incorrect unlocking on error cases when starting jobs. -- Improve logging of invalid sinfo and squeue print options. -- BLUEGENE - Added check to libsched_if to allow root to run even outside of SLURM. This is needed when running certain blocks outside of SLURM in HTC mode. * Changes in SLURM 2.1.11-2 =========================== -- BLUEGENE - make it so libsched_if.so is named correctly on 'L' it is libsched_if64.so and on 'P' it is libsched_if.so * Changes in SLURM 2.1.11 ========================= -- BLUEGENE - fix sinfo to not get duplicate entries when running command sinfo -e -o "%9P %6m %.4c %.22F %f" -- Fix bug that caused segv when deleting a partition with pending jobs. -- Better error message for when trying to modify an account's name with sacctmgr. -- Added back removal of #include "src/common/slurm_xlator.h" from select/cons_res. -- Fix incorrect logic in global_accounting in regression tests for setting QOS. -- BLUEGENE - Fixed issue where removing a small block in dynamic mode, and other blocks also in that midplane needed to be removed and were in and error state. They all weren't removed correctly in accounting. -- Prevent scontrol segv with "scontrol show node " command with nodes in a hidden partition. -- Fixed sizing of popup grids in sview. -- Fixed sacct when querying against a jobid the start time is not set. -- Fix configure to get correct version of pkg-config if both 32bit and 64bit libs are installed. -- Fix issue with sshare not sorting correctly the tree of associations. -- Update documentation for sreport. -- BLUEGENE - fix regression in 2.1.10 on assigning multiple jobs to one block. -- Minor memory leak fixed when killing job error happens. -- Fix sacctmgr list assoc when talking to a 2.2 slurmdbd. * Changes in SLURM 2.1.10 ========================= -- Fix memory leak in sched/builtin plugin. -- Fixed sbatch to work correctly when no nodes are specified, but --ntasks-per-node is. -- Make sure account and wckey for a job are lower case before inserting into accounting. -- Added note to squeue documentation about --jobs option displaying jobs even if they are on hidden partitions. -- Fix srun to work correctly with --uid when getting an allocation and creating a step. -- Fix for when removing a limit from a users association inside the fairshare tree the parents limit is now inherited automatically in the slurmctld. Previously the slurmctld would have to be restarted. This problem only exists when setting a users association limit to -1. -- Patch from Matthieu Hautreux (CEA) dealing with possible overflows that could come up with the select/cons_res plugin with uint32_t's being treated as uint16_t's. -- Correct logic for creating a reservation with a Duration=Infinite (used to set reservation end time in the past). -- Correct logic for creating a reservation that properly handles the OVERLAP and IGNORE_JOBS flags (flags were ignored under some conditions). -- Fixed a fair-share calculation bug in the priority/multifactor plugin. -- Make sure a user entry in the database that was previously deleted is restored clean when added back, i.e. remove admin privileges previously given. -- BLUEGENE - Future start time is set correctly when eligible time for a job is in the future, but the job can physically run earlier. -- Updated Documentation for sacctmgr for Wall and CPUMin options stating when the limit is reached running jobs will be killed. -- Fix deadlock issue in the slurmctld when lowering limits in accounting to lower than that of pending jobs. -- Fix bug in salloc, sbatch and srun that could under some conditions process the --threads-per-core, --cores-per-socket and --sockets-per-node options improperly. -- Fix bug in select/cons_res with memory management plus job preemption with job removal (e.g. requeue) which under some conditions failed to preempt jobs. -- Fix deadlock potential when using qos and associations in the slurmctld. -- Update documentation to state --ntasks-per-* is for a maximum value instead of an absolute. -- Get ReturnToService=2 working for front-end configurations (e.g. Cray or BlueGene). -- Do not make a non-responding node available for use after running "scontrol update nodename= state=resume". Wait for node to respond before use. -- Added slurm_xlator.h to jobacct_gather plugins so they resolve symbols correctly when linking to the slurm api. -- You can now update a jobs QOS from scontrol. Previously you could only do this from sview. -- BLUEGENE - Fixed bug where if running in non-dynamic mode sometimes the start time returned for a job when using test-only would not be correct. * Changes in SLURM 2.1.9 ======================== -- In select/linear - Fix logic to prevent over-subscribing memory with shared nodes (Shared=YES or Shared=FORCE). -- Fix for handling -N and --ntasks-per-node without specifying -n with salloc and sbatch. -- Fix jobacct_gather/linux if not polling on tasks to give tasks time to start before doing initial gather. -- When changing priority with the multifactor plugin we make sure we update the last_job_update variable. -- Fixed sview for gtk < 2.10 to display correct debug level at first. -- Fixed sview to not select too fast when using a mouse right click. -- Fixed sacct to display correct timelimits for jobs from accounting. -- Fixed sacct when running as root by default query all users as documented. -- In proctrack/linuxproc, skip over files in /proc that are not really user processes (e.g. "/proc/bus"). -- Fix documentation bug for slurmdbd.conf -- Fix slurmctld to update qos preempt list without restart. -- Fix bug in select/cons_res that in some cases would prevent a preempting job from using of resources already allocated to a preemptable running job. -- Fix for sreport in interactive mode to honor parsable/2 options. -- Fixed minor bugs in sacct and sstat commands -- BLUEGENE - Fixed issue if the slurmd becomes unresponsive and you have blocks in an error state accounting is correct when the slurmd comes back up. -- Corrected documentation for -n option in srun/salloc/sbatch -- BLUEGENE - when running a willrun test along with preemption the bluegene plugin now does the correct thing. -- Fix possible memory corruption issue which can cause slurmctld to abort. -- BLUEGENE - fixed small memory leak when setting up env. -- Fixed deadlock if using accounting and cluster changes size in the database. This can happen if you mistakenly have multiple primary slurmctld's running for a single cluster, which should rarely if ever happen. -- Fixed sacct -c option. -- Critical bug fix in sched/backfill plugin that caused memory corruption. * Changes in SLURM 2.1.8 ======================== -- Update BUILD_NOTES for AIX and bgp systems on how to get sview to build correctly. -- Update man page for scontrol when nodes are in the "MIXED" state. -- Better error messages for sacctmgr. -- Fix bug in allocation of CPUs with select/cons_res and --cpus-per-task option. -- Fix bug in dependency support for afterok and afternotok options to insure that the job's exit status gets checked for dependent jobs prior to puring completed job records. -- Fix bug in sched/backfill that could set an incorrect expected start time for a job. -- BLUEGENE - Fix for systems that have midplanes defined in the database that don't exist. -- Accounting, fixed bug where if removing an object a rollback wasn't possible. -- Fix possible scontrol stack corruption when listing jobs with very a long job or working directory name (over 511 characters). -- Insure that SPANK environment variables set by salloc or sbatch get propagated to the Prolog on all nodes by setting SLURM_SPANK_* environment variables for srun's use. -- In sched/wiki2 - Add support for the MODIFYJOB command to alter a job's comment field -- When a cluster first registers with the SlurmDBD only send nodes in an non-usable state. Before all nodes were sent. -- Alter sacct to be able to query jobs by association id. -- Edit documentation for scontrol stating ExitCode as something not alterable. -- Update documentation about ReturnToService and silently rebooting nodes. -- When combining --ntasks-per-node and --exclusive in an allocation request the correct thing, giving the allocation the entire node but only ntasks-per-node, happens. -- Fix accounting transaction logs when deleting associations to put the ids instead of the lfts which could change over time. -- Fix support for salloc, sbatch and srun's --hint option to avoid allocating a job more sockets per node or more cores per socket than desired. Also when --hint=compute_bound or --hint=memory_bound then avoid allocating more than one task per hyperthread (a change in behavior, but almost certainly a preferable mode of operation). * Changes in SLURM 2.1.7 ======================== -- Modify srun, salloc and sbatch parsing for the --signal option to accept either a signal name in addition to the previously supported signal numbers (e.g. "--signal=USR2@200"). -- BLUEGENE - Fixed sinfo --long --Node output for cpus on a single cnode. -- In sched/wiki2 - Fix another logic bug in support of Moab being able to identify preemptable jobs. -- In sched/wiki2 - For BlueGene systems only: Fix bug preventing Moab from being able to correctly change the node count of pending jobs. -- In select/cons_res - Fix bug preventing job preemption with a configuration of Shared=FORCE:1 and PreemptMode=GANG,SUSPEND. -- In the TaskProlog, add support for an "unset" option to clear environment variables for the user application. Also add support for embedded white- space in the environment variables exported to the user application (everything after the equal sign to the end of the line is included without alteration). -- Do not install /etc/init.d/slurm or /etc/init.d/slurmdbd on AIX systems. -- BLUEGENE - fixed check for small blocks if a node card of a midplane is in an error state other jobs can still run on the midplane on other nodecards. -- BLUEGENE - Check to make sure job killing is in the active job table in DB2 when killing the job. -- Correct logic to support ResvOverRun configuration parameter. -- Get --acctg-freq option working for srun and salloc commands. -- Fix sinfo display of drained nodes correctly with the summarize flag. -- Fix minor memory leaks in slurmd and slurmstepd. -- Better error messages for failed step launch. -- Modify srun to insure compatability of the --relative option with the node count requested. * Changes in SLURM 2.1.6-2 ========================== -- In sched/wiki2 - Fix logic in support of Moab being able to identify preemptable jobs. -- Applied fixes to a debug4 message in priority_multifactor.c sent in by Per Lundqvist -- BLUEGENE - Fixed issue where incorrect nodecards could be picked when looking at combining small blocks to make a larger small block. * Changes in SLURM 2.1.6 ======================== -- For newly submitted jobs, report expected start time in squeue --start as "N/A" rather than current time. -- Correct sched/backfill logic so that it runs in a more timely fashion. -- Fixed issue if running on accounting cache and priority/multifactor to initialize the root association when the database comes back up. -- Emulated BLUEGENE - fixed issue where blocks weren't always created correctly when loading from state. This does not apply to a real bluegene system, only emulated. -- Fixed bug when job is completing and its cpu_cnt would be calculated incorrectly, possibly resulting in an underflow being logged. -- Fixed bug where if there are pending jobs in a partition which was updated to have no nodes in it the slurmctld would dump core. -- Fixed smap and sview to display partitions with no nodes in them. -- Improve configure script's logic to detect LUA libraries. -- Fix bug that could cause slurmctld to abort if select/cons_res is used AND a job is submitted using the --no-kill option AND one of the job's nodes goes DOWN AND slurmctld restarts while that job is still running. -- In jobcomp plugins, job time limit was sometimes recorded improperly if not set by user (recorded huge number rather than partition's time limit). * Changes in SLURM 2.1.5 ======================== -- BLUEGENE - Fixed display of draining nodes for sinfo -R. -- Fixes to scontrol and sview when setting a job to an impossible start time. -- Added -h to srun for help. -- Fix for sacctmgr man page to remove erroneous 'with' statements. -- Fix for unpacking jobs with accounting statistics, previously it appears only steps were unpacked correctly, for the most case sacct would only display this information making this fix a very minor one. -- Changed scontrol and sview output for jobs with unknown end times from 'NONE' to 'Unknown'. -- Fixed mysql plugin to reset classification when adding a previously deleted cluster. -- Permit a batch script to reset umask and have that propagate to tasks spawed by subsequent srun. Previously the umask in effect when sbatch was executed was propagated to tasks spawed by srun. -- Modify slurm_job_cpus_allocated_on_node_id() and slurm_job_cpus_allocated_on_node() functions to not write explanation of failures to stderr. Only return -1 and set errno. -- Correction in configurator.html script. Prolog and Epilog were reversed. -- BLUEGENE - Fixed race condition where if a nodecard has an error on an un-booted block when a job comes to use it before the state checking thread notices it which could cause the slurmctld to lock up on a non-dynamic system. -- In select/cons_res with FastSchedule=0 and Procs=# defined for the node, but no specific socket/core/thread count configured, avoid fatal error if the number of cores on a node is less than the number of Procs configured. -- Added ability for the perlapi to utilize opaque data types returned from the C api. -- BLUEGENE - made the perlapi get correct values for cpus per node, Previously it would give the number of cpus per cnode instead of midplane. -- BLEUGENE - Fixed issue where if a block being selected for a job to use and during the process a hardware failure happens, previously the block would still be allowed to be used which would fail or requeue the job depending on the configuration. -- For SPANK job environment, avoid duplicate "SPANK_" prefix for environment set by sbatch jobs. -- Make squeue select jobs on hidden partitions when requesting more than one. -- Avoid automatically cancelling job steps when all of the tasks on some node have gracefully terminated. * Changes in SLURM 2.1.4 ======================== -- Fix for purge script in accounting to use correct options. -- If SelectType=select/linear and SelectTypeParameters=CR_Memory fix bug that would fail to release memory reserved for a job if "scontrol reconfigure" is executed while the job is in completing state. -- Fix bug in handling event trigger for job time limit while job is still in pending state. -- Fixed display of Ave/MaxCPU in sacct for jobs. Steps were printed correctly. -- When node current features differs from slurm.conf, log the node names using a hostlist expression rather than listing individual node names. -- Improve ability of srun to abort job step for some task launch failures. -- Fix mvapich plugin logic to release the created job allocation on initialization failure (previously the failures would cancel job step, but retain job allocation). -- Fix bug in srun for task count so large that it overflows int data type. -- Fix important bug in select/cons_res handling of ntasks-per-core parameter that was uncovered by a bug fixed in v2.1.3. Bug produced fatal error for slurmctld: "cons_res: cpus computation error". -- Fix bug in select/cons_res handling of partitions configured with Shared=YES. Prior logic failed to support running multiple jobs per node. * Changes in SLURM 2.1.3-2 ========================== -- Modified spec file to obsolete pam_slurm when installing the slurm-pam_slurm rpm. * Changes in SLURM 2.1.3-1 ========================== -- BLUEGENE - Fix issues on static/overlap systems where if a midplane was drained you would not be able to create new blocks on it. -- In sched/wiki2 (for Moab): Add excluded host list to job information using new keyword "EXCLUDE_HOSTLIST". -- Correct slurmd reporting of incorrect socket/core/thread counts. -- For sched/wiki2 (Moab): Do not extend a job's end time for suspend/resume or startup delay due to node boot time. A job's end time will always be its start time plus time limit. -- Added build-time option (to configure program) of --with-pam_dir to specify the directory into which PAM modules get installed, although it should pick the proper directory by default. "make install" and "rpmbuild" should now put the pam_slurm.so file in the proper directory. -- Modify PAM module to link against SLURM API shared library and use exported slurm_hostlist functions. -- Do not block new jobs with --immediate option while another job is in the process of being requeued (which can take a long time for some node failure modes). -- For topology/tree, log invalid hostnames in a single hostlist expression rather than one per line. -- A job step's default time limit will be UNLIMITED rather than partition's default time limit. The step will automatically be cancelled as part of the job termination logic when the job's time limit is reached. -- sacct - fixed bug when checking jobs against a reservation -- In select/cons_res, fix support for job allocation with --ntasks_per_node option. Previously could allocate too few CPUs on some nodes. -- Adjustment made to init message to the slurmdbd to allow backwards compatibility with future 2.2 release. YOU NEED TO UPGRADE SLURMDBD BEFORE ANYTHING ELSE. -- Fix accounting when comment of down/drained node has double quotes in it. * Changes in SLURM 2.1.2 ======================== -- Added nodelist to sview for jobs on non-bluegene systems -- Correction in value of batch job environment variable SLURM_TASKS_PER_NODE under some conditions. -- When a node silently fails which is already drained/down the reason for draining for the node is not changed. -- Srun will ignore SLURM_NNODES environment variable and use the count of currently allocated nodes if that count changes during the job's lifetime (e.g. job allocation uses the --no-kill option and a node goes DOWN, job step would previously always fail). -- Made it so sacctmgr can't add blank user or account. The MySQL plugin will also reject such requests. -- Revert libpmi.so version for compatibility with SLURM version 2.0 and earlier to avoid forcing applications using a specific libpmi.so version to rebuild unnecessarily (revert from libpmi.so.21.0.0 to libpmi.so.0.0.0). -- Restore support for a pending job's constraints (required node features) when slurmctld is restarted (internal structure needed to be rebuilt). -- Removed checkpoint_blcr.so from the plugin rpm in the slurm.spec since it is also in the blcr rpm. -- Fixed issue in sview where you were unable to edit the count of jobs to share resources. -- BLUEGENE - Fixed issue where tasks on steps weren't being displayed correctly with scontrol and sview. -- BLUEGENE - fixed wiki2 plugin to report correct task count for pending jobs. -- BLUEGENE - Added /etc/ld.so.conf.d/slurm.conf to point to the directory holding libsched_if64.so when building rpms. -- Adjust get_wckeys call in slurmdbd to allow operators to list wckeys. * Changes in SLURM 2.1.1 ======================== -- Fix for case sensitive databases when a slurmctld has a mixed case clustername to lower case the string to easy compares. -- Fix squeue if job is completing and failed to print remaining nodes instead of failed message. -- Fix sview core when searching for partitions by state. -- Fixed setting the start time when querying in sacct to the beginning of the day if not set previously. -- Defined slurm_free_reservation_info_msg and slurm_free_topo_info_msg in common/slurm_protocol_defs.h -- Avoid generating error when a job step includes a memory specification and memory is not configured as a consumable resource. -- Patch for small memory leak in src/common/plugstack.c -- Fix sview search on node state. -- Fix bug in which improperly formed job dependency specification can cause slurmctld to abort. -- Fixed issue where slurmctld wouldn't always get a message to send cluster information when registering for the first time with the slurmdbd. -- Add slurm_*_trigger.3 man pages for event trigger APIs. -- Fix bug in job preemption logic that would free allocated memory twice. -- Fix spelling issues (from Gennaro Oliva) -- Fix issue when changing parents of an account in accounting all childern weren't always sent to their respected slurmctlds until a restart. -- Restore support for srun/salloc/sbatch option --hint=nomultithread to bind tasks to cores rather than threads (broken in slurm v2.1.0-pre5). -- Fix issue where a 2.0 sacct could not talk correctly to a 2.1 slurmdbd. -- BLUEGENE - Fix issue where no partitions have any nodes assigned them to alert user no blocks can be created. -- BLUEGENE - Fix smap to put BGP images when using -Dc on a Blue Gene/P system. -- Set SLURM_SUBMIT_DIR environment variable for srun and salloc commands to match behavior of sbatch command. -- Report WorkDir from "scontrol show job" command for jobs launched using salloc and srun. -- Update correctly the wckey when changing it on a pending job. -- Set wckeyid correctly in accounting when cancelling a pending job. -- BLUEGENE - critical fix where jobs would be killed incorrectly. -- BLUEGENE - fix for sview putting multiple ionodes on to nodelists when viewing the jobs tab. * Changes in SLURM 2.1.0 ======================== -- Improve sview layout of blocks in use. -- A user can now change the dimensions of the grid in sview. -- BLUEGENE - improved startup speed further for large numbers of defined blocks -- Fix to _get_job_min_nodes() in wiki2/get_jobs.c suggested by Michal Novotny -- BLUEGENE - fixed issues when updating a pending job when a node count was incorrect for the asked for connection type. -- BLUEGENE - fixed issue when combining blocks that are in ready states to make a larger block from those or make multiple smaller blocks by splitting the larger block. Previously this would only work with block in a free state. -- Fix bug in wiki(2) plugins where if HostFormat=2 and the task list is greater than 64 we don't truncate. Previously this would mess up Moab by sending a truncated task list when doing a get jobs. -- Added update slurmctld debug level to sview when in admin mode. -- Added logic to make sure if enforcing a memory limit when using the jobacct_gather plugin a user can no longer turn off the logic to enforce the limit. -- Replaced many calls to getpwuid() with reentrant uid_to_string() -- The slurmstepd will now refresh it's log file handle on a reconfig, previously if a log was rolled any output from the stepd was lost.