NEWS

* Changes in Slurm 14.11.7
==========================
 -- Initialize some variables used with the srun --no-alloc option that may
    cause random failures.
 -- Add SchedulerParameters option of sched_min_interval that controls the
    minimum time interval between any job scheduling action. The default value
    is zero (disabled).
 -- Change default SchedulerParameters=max_sched_time from 4 seconds to 2.
 -- Refactor scancel so that all pending jobs are cancelled before starting
    cancellation of running jobs. Otherwise they happen in parallel and the
    pending jobs can be scheduled on resources as the running jobs are being
    cancelled.
 -- ALPS - Add new cray.conf variable NoAPIDSignalOnKill.  When set to yes this
    will make it so the slurmctld will not signal the apid's in a batch job.
    Instead it relies on the rpc coming from the slurmctld to kill the job to
    end things correctly.
 -- ALPS - Have the slurmstepd running a batch job wait for an ALPS release
    before ending the job.
 -- Initialize variables in consumable resource plugin to prevent core dump.
 -- Fix scancel bug which could return an error on attempt to signal a job step.
 -- In slurmctld communication agent, make the thread timeout be the configured
    value of MessageTimeout rather than 30 seconds.
 -- sshare -U/--Users only flag was used uninitialized.
 -- Cray systems, add "plugstack.conf.template" sample SPANK configuration file.
 -- BLUEGENE - Set DB2NOEXITLIST when starting the slurmctld daemon to avoid
    random crashing in db2 when the slurmctld is exiting.
 -- Make full node reservations display correctly the core count instead of
    cpu count.
 -- Preserve original errno on execve() failure in task plugin.
 -- Add SLURM_JOB_NAME env variable to an salloc's environment.
 -- Overwrite SLURM_JOB_NAME in an srun when it gets an allocation.
 -- Make sure each job has a wckey if that is something that is tracked.
 -- Make sure old step data is cleared when job is requeued.
 -- Load libtinfo as needed when building ncurses tools.
 -- Fix small memory leak in backup controller.
 -- Fix segfault when backup controller takes control for second time.
 -- Cray - Fix backup controller running native Slurm.
 -- Provide prototypes for init_setproctitle()/fini_setproctitle on NetBSD.
 -- Add configuration test to find out the full path to su command.
 -- preempt/job_prio plugin: Fix for possible infinite loop when identifying
    preemptable jobs.
 -- preempt/job_prio plugin: Implement the concept of Warm-up Time here. Use
    the QoS GraceTime as the amount of time to wait before preempting.
    Basically, skip preemption if your time is not up.
 -- Make srun wait KillWait time when a task is cancelled.
 -- switch/cray: Revert logic added to 14.11.6 that set "PMI_CRAY_NO_SMP_ENV=1"
    if CR_PACK_NODES is configured.

* Changes in Slurm 14.11.6
==========================
 -- If SchedulerParameters value of bf_min_age_reserve is configured, then
    a newly submitted job can start immediately even if there is a higher
    priority non-runnable job which has been waiting for less time than
    bf_min_age_reserve.
 -- qsub wrapper modified to export "all" with -V option
 -- RequeueExit and RequeueExitHold configuration parameters modified to accept
    numeric ranges. For example "RequeueExit=1,2,3,4" and "RequeueExit=1-4" are
    equivalent.
 -- Correct the job array specification parser to accept brackets in job array
    expression (e.g. "123_[4,7-9]").
 -- Fix for misleading job submit failure errors sent to users. Previous error
    could indicate why specific nodes could not be used (e.g. too small memory)
    when other nodes could be used, but were not for another reason.
 -- Fix squeue --array to display correctly the array elements when the
    % separator is specified at the array submission time.
 -- Fix priority from not being calculated correctly due to memory issues.
 -- Fix a transient pending reason 'JobId=job_id has invalid QOS'.
 -- A non-administrator change to job priority will not be persistent except
    for holding the job. User's wanting to change a job priority on a persistent
    basis should reset it's "nice" value.
 -- Print buffer sizes as unsigned values when failed to pack messages.
 -- Fix race condition where sprio would print factors without weights applied.
 -- Document the sacct option JobIDRaw which for arrays prints the jobid instead
    of the arrayTaskId.
 -- Allow users to modify MinCPUsNode, MinMemoryNode and MinTmpDiskNode of
    their own jobs.
 -- Increase the jobid print field in SQUEUE_FORMAT in
    opt_modulefiles_slurm.in.
 -- Enable compiling without optimizations and with debugging symbols by
    default. Disable this by configuring with --disable-debug.
 -- job_submit/lua plugin: Add mail_type and mail_user fields.
 -- Correct output message from sshare.
 -- Use standard statvfs(2) syscall if available, in preference to
    non-standard statfs.
 -- Add a new option -U/--Users to sshare to display only users
    information, parent and ancestors are not printed.
 -- Purge 50000 records at a time so that locks can released periodically.
 -- Fix potentially uninitialized variables
 -- ALPS - Fix issue where a frontend node could become unresponsive and never
    added back into the system.
 -- Gate epilog complete messages as done with other messages
 -- If we have more than a certain number of agents (50) wait longer when gating
    rpcs.
 -- FrontEnd - ping non-responding or down nodes.
 -- switch/cray: If CR_PACK_NODES is configured, then set the environment
    variable "PMI_CRAY_NO_SMP_ENV=1"
 -- Fix invalid memory reference in SlurmDBD when putting a node up.
 -- Allow opening of plugstack.conf even when a symlink.
 -- Fix scontrol reboot so that rebooted nodes will not be set down with reason
    'Node xyz unexpectedly rebooted' but will be correctly put back to service.
 -- CRAY - Throttle the post NHC operations as to not hog the job write lock
    if many steps/jobs finish at once.
 -- Disable changes to GRES count while jobs are running on the node.
 -- CRAY - Fix issue with scontrol reconfig.
 -- slurmd: Remove wrong reporting of "Error reading step  ... memory limit".
    The logic was treating success as an error.
 -- Eliminate "Node ping apparently hung" error messages.
 -- Fix average CPU frequency calculation.
 -- When allocating resources with resolution of sockets, charge the job for all
    CPUs on allocated sockets rather than just the CPUs on used cores.
 -- Prevent slurmdbd error if cluster added or removed while rollup in progress.
    Removing a cluster can cause slurmdbd to abort. Adding a cluster can cause
    the slurmdbd rollup to hang.
 -- sview - When right clicking on a tab make sure we don't display the page
    list, but only the column list.
 -- FRONTEND - If doing a clean start make sure the nodes are brought up in the
    database.
 -- MySQL - Fix issue when using the TrackSlurmctldDown and nodes are down at
    the same time, don't double bill the down time.
 -- MySQL - Various memory leak fixes.
 -- sreport - Fix Energy displays
 -- Fix node manager logic to keep unexpectedly rebooted node in state
    NODE_STATE_DOWN even if already down when rebooted.
 -- Fix for array jobs submitted to multiple partitions not starting.
 -- CRAY - Enable ALPs mpp compatibility code in sbatch for native Slurm.
 -- ALPS - Move basil_inventory to less confusing function.
 -- Add SchedulerParameters option of "sched_max_job_start="  to limit the
    number of jobs that can be started in any single execution of the main
    scheduling logic.
 -- Fixed compiler warnings generated by gcc version >= 4.6.
 -- sbatch to stop parsing script for "#SBATCH" directives after first command,
    which matches the documentation.
 -- Overwrite the SLURM_JOB_NAME in sbatch if already exist in the environment
    and use the one specified on the command line --job-name.
 -- Remove xmalloc_nz from unpack functions.  If the unpack ever failed the
    free afterwards would not have zeroed out memory on the variables that
    didn't get unpacked.
 -- Improve database interaction from controller.
 -- Fix for data shift when loading job archives.
 -- ALPS - Added new SchedulerParameters=inventory_interval to specify how
    often an inventory request is handled.
 -- ALPS - Don't run a release on a reservation on the slurmctld for a batch
    job.  This is already handled on the stepd when the script finishes.

* Changes in Slurm 14.11.5
==========================
 -- Correct the squeue command taking into account that a node can
    have NULL name if it is not in DNS but still in slurm.conf.
 -- Fix slurmdbd regression which would cause a segfault when a node is set
    down with no reason.
 -- BGQ - Fix issue with job arrays not being handled correctly
    in the runjob_mux plugin.
 -- Print FAIR_TREE, if configured, in "scontrol show config" output for
    PriorityFlags.
 -- Add SLURM_JOB_GPUS environment variable to those available in the Prolog.
 -- Load lua-5.2 library if using lua5.2 for lua job submit plugin.
 -- GRES logic: Prevent bad node_offset due to not preserving no_consume flag.
 -- Fix wrong variables used in the wrapper functions needed for systems that
    don't support strong_alias
 -- Fix code for apple computers SOL_TCP is not defined
 -- Cray/BASIL - Check for mysql credentials in /root/.my.cnf.
 -- Fix sprio showing wrong priority for job arrays until priority is
    recalculated.
 -- Account to batch step all CPUs that are allocated to a job not
    just one since the batch step has access to all CPUs like other steps.
 -- Fix job getting EligibleTime set before meeting dependency requirements.
 -- Correct the initialization of QOS MinCPUs per job limit.
 -- Set the debug level of information messages in cgroup plugin to debug2.
 -- For job running under a debugger, if the exec of the task fails, then
    cancel its I/O and abort immediately rather than waiting 60 seconds for
    I/O timeout.
 -- Fix associations not getting default qos set until after a restart.
 -- Set the value of total_cpus not to be zero before invoking
    acct_policy_job_runnable_post_select.
 -- MySQL - When requesting cluster resources, only return resources for the
    cluster(s) requested.
 -- Add TaskPluginParam=autobind=threads option to set a default binding in the
    case that "auto binding" doesn't find a match.
 -- Introduce a new SchedulerParameters variable nohold_on_prolog_fail.
    If configured don't requeue jobs on hold is a Prolog fails.
 -- Make it so sched_params isn't read over and over when an epilog complete
    message comes in
 -- Fix squeue -L <licenses> not filtering out jobs with licenses.
 -- Changed the implementation of xcpuinfo_abs_to_mac() be identical
    _abs_to_mac() to fix CPUs allocation using cpuset cgroup.
 -- Improve the explanation of the unbuffered feature in the
    srun man page.
 -- Make taskplugin=cgroup work for core spec.  needed to have task/cgroup
    before.
 -- Fix reports not using the month usage table.
 -- BGQ - Sanity check given for translating small blocks into slurm bg_records.
 -- Fix bug preventing the requeue/hold or requeue/special_exit of job from the
    completing state.
 -- Cray - Fix for launching batch step within an existing job allocation.
 -- Cray - Add ALPS_APP_ID_ENV environment variable.
 -- Increase maximum MaxArraySize configuration parameter value from 1,000,001
    to 4,000,001.
 -- Added new SchedulerParameters value of bf_min_age_reserve. The backfill
    scheduler will not reserve resources for pending jobs until they have
    been pending for at least the specified number of seconds. This can be
    valuable if jobs lack time limits or all time limits have the same value.
 -- Fix support for --mem=0 (all memory of a node) with select/cons_res plugin.
 -- Fix bug that can permit someone to kill job array belonging to another user.
 -- Don't set the default partition on a license only reservation.
 -- Show a NodeCnt=0, instead of NO_VAL, in "scontrol show res" for a license
    only reservation.
 -- BGQ - When using static small blocks make sure when clearing the job the
    block is set up to it's original state.
 -- Start job allocation using lowest numbered sockets for block task
    distribution for consistency with cyclic distribution.

* Changes in Slurm 14.11.4
==========================
 -- Make sure assoc_mgr locks are initialized correctly.
 -- Correct check of enforcement when filling in an association.
 -- Make sacctmgr print out classification correctly for clusters.
 -- Add array_task_str to the perlapi job info.
 -- Fix for slurmctld abort with GRES types configured and no CPU binding.
 -- Fix for GRES scheduling where count > 1 per topology type (or GRES types).
 -- Make CR_ONE_TASK_PER_CORE work correctly with task/affinity.
 -- job_submit/pbs - Fix possible deadlock.
 -- job_submit/lua - Add "alloc_node" to job information available.
 -- Fix memory leak in mysql accounting when usage rollup happens.
 -- If users specify ALL together with other variables using the
    --export sbatch/srun command line option, propagate the users'
    environ to the execution side.
 -- Fix job array scheduling anomaly that can stop scheduling of valid tasks.
 -- Fix perl api tests for libslurmdb to work correctly.
 -- Remove some misleading logs related to non-consumable GRES.
 -- Allow --ignore-pbs to take effect when read as an #SBATCH argument.
 -- Fix Slurmdb::clusters_get() in perl api from not returning information.
 -- Fix TaskPluginParam=Cpusets from logging error message about not being able
    to remove cpuset dir which was already removed by the release_agent.
 -- Fix sorting by time left in squeue.
 -- Fix the file name substitution for job stderr when %A, %a %j and %u
    are specified.
 -- Remove minor warning when compiling slurmstepd.
 -- Fix database resources so they can add new clusters to them after they have
    initially been added.
 -- Use the slurm_getpwuid_r wrapper of getpwuid_r to handle possible
    interrupts.
 -- Correct the scontrol man page and command listing which node states can
    be set by the command.
 -- Stop sacct from printing non-existent stat information for
    Front End systems.
 -- Correct srun and acct_gather.conf man pages, mention Filesystem instead
    of Lustre.
 -- When a job using multiple partition starts send to slurmdbd only
    the partition in which the job runs.
 -- ALPS - Fix depth for MemoryAllocation in BASIL with CLE 5.2.3.
 -- Fix assoc_mgr hash to deal with users that don't have a uid yet when making
    reservations.
 -- When a job uses multiple partition set the environment variable
    SLURM_JOB_PARTITION to be the one in which the job started.
 -- Print spurious message about the absence of cgroup.conf at log level debug2
    instead of info.
 -- Enable CUDA v7.0+ use with a Slurm configuration of TaskPlugin=task/cgroup
    ConstrainDevices=yes (in cgroup.conf). With that configuration
    CUDA_VISIBLE_DEVICES will start at 0 rather than the device number.
 -- Fix job array logic that can cause slurmctld to abort.
 -- Report job "shared" field properly in scontrol, squeue, and sview.
 -- If a job is requeued because of RequeueExit or RequeueExitHold sent event
    REQUEUED to slurmdbd.
 -- Fix build if hwloc is in non-standard location.
 -- Fix slurmctld job recovery logic which could cause the last task in a job
    array to be lost.
 -- Fix slurmctld initialization problem which could cause requeue of the last
    task in a job array to fail if executed prior to the slurmctld loading
    the maximum size of a job array into a variable in the job_mgr.c module.
 -- Fix fatal in controller when deleting a user association of a user which
    had been previously removed from the system.
 -- MySQL - If a node state and reason are the same on a node state change
    don't insert a new row in the event table.
 -- Fix issue with "sreport cluster AccountUtilizationByUser" when using
    PrivateData=users.
 -- Fix perlapi tests for libslurm perl module.
 -- MySQL - Fix potential issue when PrivateData=Usage and a normal user
    runs certain sreport reports.

* Changes in Slurm 14.11.3
==========================
 -- Prevent vestigial job record when canceling a pending job array record.
 -- Fixed squeue core dump.
 -- Fix job array hash table bug, could result in slurmctld infinite loop or
    invalid memory reference.
 -- In srun honor ntasks_per_node before looking at cpu count when the user
    doesn't request a number of tasks.
 -- Fix ghost job when submitting job after all jobids are exhausted.
 -- MySQL - Enhanced coordinator security checks.
 -- Fix for task/affinity if an admin configures a node for having threads
    but then sets CPUs to only represent the number of cores on the node.
 -- Make it so previous versions of salloc/srun work with newer versions
    of Slurm daemons.
 -- Avoid delay on commit for PMI rank 0 to improve performance with some
    MPI implementations.
 -- auth/munge - Correct logic to read old format AccountingStoragePass.
 -- Reset node "RESERVED" state as appropriate when deleting a maintenance
    reservation.
 -- Prevent a job manually suspended from being resumed by gang scheduler once
    free resources are available.
 -- Prevent invalid job array task ID value if a task is started using gang
    scheduling.
 -- Fixes for clean build on FreeBSD.
 -- Fix documentation bugs in slurm.conf.5. DenyAccount should be DenyAccounts.
 -- For backward compatibility with older versions of OMPI not compiled
    with --with-pmi restore the SLURM_STEP_RESV_PORTS in the job environment.
 -- Update the html documentation describing the integration with openmpi.
 -- Fix sacct when searching by nodelist.
 -- Fix cosmetic info statements when dealing with a job array task instead of
    a normal job.
 -- Fix segfault with job arrays.
 -- Correct the sbatch pbs parser to process -j.
 -- BGQ - Put print statement under a DebugFlag.  This was just an oversight.
 -- BLUEGENE - Remove check that would erroneously remove the CONFIGURING
    flag from a job while the job is waiting for a block to boot.
 -- Fix segfault in slurmstepd when job exceeded memory limit.
 -- Fix race condition that could start a job that is dependent upon a job array
    before all tasks of that job array complete.
 -- PMI2 race condition fix.

* Changes in Slurm 14.11.2
==========================
 -- Fix Centos5 compile errors.
 -- Fix issue with association hash not getting the correct index which
    could result in seg fault.
 -- Fix salloc/sbatch -B segfault.
 -- Avoid huge malloc if GRES configured with "Type" and huge "Count".
 -- Fix jobs from starting in overlapping reservations that won't finish before
    a "maint" reservation begins.
 -- When node gets drained while in state mixed display its status as draining
    in sinfo output.
 -- Allow priority/multifactor to work with sched/wiki(2) if all priorities
    have no weight.  This allows for association and QOS decay limits to work.
 -- Fix "squeue --start" to override SQUEUE_FORMAT env variable.
 -- Fix scancel to be able to cancel multiple jobs that are space delimited.
 -- Log Cray MPI job calling exit() without mpi_fini(), but do not treat it as
    a fatal error. This partially reverts logic added in version 14.03.9.
 -- sview - Fix displaying of suspended steps elapsed times.
 -- Increase number of messages that get cached before throwing them away
    when the DBD is down.
 -- Fix jobs from starting in overlapping reservations that won't finish before
    a "maint" reservation begins.
 -- Restore GRES functionality with select/linear plugin. It was broken in
    version  14.03.10.
 -- Fix bug with GRES having multiple types that can cause slurmctld abort.
 -- Fix squeue issue with not recognizing "localhost" in --nodelist option.
 -- Make sure the bitstrings for a partitions Allow/DenyQOS are up to date
    when running from cache.
 -- Add smap support for job arrays and larger job ID values.
 -- Fix possible race condition when attempting to use QOS on a system running
    accounting_storage/filetxt.
 -- Fix issue with accounting_storage/filetxt and job arrays not being printed
    correctly.
 -- In proctrack/linuxproc and proctrack/pgid, check the result of strtol()
    for error condition rather than errno, which might have a vestigial error
    code.
 -- Improve information recording for jobs deferred due to advanced
    reservation.
 -- Exports eio_new_initial_obj to the plugins and initialize kvs_seq on
    mpi/pmi2 setup to support launching.

* Changes in Slurm 14.11.1
==========================
 -- Get libs correct when doing the xtree/xhash make check.
 -- Update xhash/tree make check to work correctly with current code.
 -- Remove the reference 'experimental' for the jobacct_gather/cgroup
    plugin.
 -- Add QOS manipulation examples to the qos.html documentation page.
 -- If 'squeue -w node_name' specifies an unknown host name print
    an error message and return 1.
 -- Fix race condition in job_submit plugin logic that could cause slurmctld to
    deadlock.
 -- Job wait reason of "ReqNodeNotAvail" expanded to identify unavailable nodes
    (e.g. "ReqNodeNotAvail(Unavailable:tux[3-6])").

* Changes in Slurm 14.11.0
==========================
 -- ALPS - Fix issue with core_spec warning.
 -- Allow multiple partitions to be specified in sinfo -p.
 -- Install the service files in /usr/lib/systemd/system.
 -- MYSQL - Add id_array_job and id_resv keys to $CLUSTER_job_table.  THIS
    COULD TAKE A WHILE TO CREATE THE KEYS SO BE PATIENT.
 -- CRAY - Resize bitmaps on a restart and find we have more blades
    than before.
 -- Add new eio API function for removing unused connections.
 -- ALPS - Fix issue where batch allocations weren't correctly confirmed or
    released.
 -- Define DEFAULT_MAX_TASKS_PER_NODE based on MAX_TASKS_PER_NODE from
    slurm.h as per documentation.
 -- Update the FAQ about relocating slurmctld.
 -- In the memory cgroup enable memory.use_hierarchy in the cgroup root.
 -- Export eio.c functions for use by MPI/PMI2.
 -- Add SLURM_CLUSTER_NAME to job environment.

* Changes in Slurm 14.11.0rc3
=============================
 -- Allow envs to override autotools binaries in autogen.sh
 -- Added system services files.
 -- If the jobs pends with DependencyNeverSatisfied keep it pending even after
    the job which it was depending upon was cleaned.
 -- Let operators (in addition to user root and SlurmUser) see job script for
    other user's jobs.
 -- Perl API modified to return node state of MIXED rather than ALLOCATED if
    only some CPUs allocated.
 -- Double Munge connect retry timeout from 1 to 2 seconds.
 -- sview - Remove unneeded code that was resolved globally in commit
    98e24b0dedc.
 -- Collect and report the accounting of the batch step and its children.
 -- Add configure checks for faccessat and eaccess, and make use of one of
    them if available.
 -- Make configure --enable-developer also set --enable-debug
 -- Introduce a SchedulerParameters variable kill_invalid_depend, if set
    then jobs pending with invalid dependency are going to be terminated.
 -- Move spank_user_task() call in slurmstepd after the task_g_pre_launch()
    so that the task affinity information is available to spank.
 -- Make /etc/init.d/slurm script return value 3 when the daemon is
    not running. This is required by Linux Standard Base Core
    Specification 3.1

* Changes in Slurm 14.11.0rc2
=============================
 -- Logs for jobs which are explicitly requeued will say so rather than saying
    that a node in their allocation failed.
 -- Updated the documentation about the remote licenses served by
    the Slurm database.
 -- Insure that slurm_spank_exit() is only called once from srun.
 -- Change the signature of net_set_low_water() to use 4 bytes instead of 8.
 -- Export working_cluster_rec in libslurmdb.so as well as move some function
    definitions needed for drmaa.
 -- If using cons_res or serial cause a fatal in the plugin instead of causing
    the SelectTypeParameters to magically set to CR_CPU.
 -- Enhance task/affinity auto binding to consider tasks * cpus-per-task.
 -- Fix regression the priority/multifactor which would cause memory corruption.
    Issue is only in rc1.
 -- Add PrivateData value of "cloud". If set, powered down nodes in the cloud
    will be visible.
 -- Sched/backfill - Eliminate clearing start_time of running jobs.
 -- Fix various backwards compatibility issues.
 -- If failed to launch a batch job, requeue it in hold.

* Changes in Slurm 14.11.0rc1
=============================
 -- When using cgroup name the batch step as step_batch instead of
    batch_4294967294
 -- Changed LEVEL_BASED priority to be "Fair_Tree"
 -- Port to NetBSD.
 -- BGQ - Add cnode based reservations.
 -- Alongside totalview_jobid implement totalview_stepid available
    to sattach.
 -- Add ability to include other files in slurm.conf based upon the ClusterName.
 -- Update strlcpy to latest upstream version.
 -- Add reservation information in the sacct and sreport output.
 -- Add job priority calculation check for overflow and fix memory leak.
 -- Add SchedulerParameters option of pack_serial_at_end to put serial jobs at
    the end of the available nodes rather than using a best fit algorithm.
 -- Allow regular users to view default sinfo output when
    privatedata=reservations is set.
 -- PrivateData=reservation modified to permit users to view the reservations
    which they have access to (rather then preventing them from seeing ANY
    reservation).
 -- job_submit/lua: Fix job_desc set field logic

* Changes in Slurm 14.11.0pre5
==============================
 -- Fix sbatch --export=ALL, it was treated by srun as a request to explicitly
    export only the environment variable named "ALL".
 -- Improve scheduling of jobs in reservations that overlap other reservations.
 -- Modify sgather to make global file systems easier to configure.
 -- Added sacctmgr reconfig to reread the slurmdbd.conf in the slurmdbd.
 -- Modify scontrol job operations to accept comma delimited list of job IDs.
    Applies to job update, hold, release, suspend, resume, requeue, and
    requeuehold operations.
 -- Refactor job_submit/lua interface. LUA FUNCTIONS NEED TO CHANGE! The
    lua script no longer needs to explicitly load meta-tables, but information
    is available directly using names slurm.reservations, slurm.jobs,
    slurm.log_info, etc. Also, the job_submit.lua script is reloaded when
    updated without restarting the slurmctld daemon.
 -- Allow users to specify --resv_ports to have value 0.
 -- Cray MPMD (Multiple-Program Multiple-Data) support completed.
 -- Added ability for "scontrol update" to references jobs by JobName (and
    filtered optionally by UserID).
 -- Add support for an advanced reservation start time that remains constant
    relative to the current time. This can be used to prevent the starting of
    longer running jobs on select nodes for maintenance purpose. See the
    reservation flag "TIME_FLOAT" for more information.
 -- Enlarge the jobid field to 18 characters in squeue output.
 -- Added "scontrol write config" option to save a copy of the current
    configuration in a file containing a time stamp.
 -- Eliminate native Cray specific port management. Native Cray systems must
    now use the MpiParams configuration parameter to specify ports to be used
    for commmunications. When upgrading Native Cray systems from version 14.03,
    all running jobs should be killed and the switch_cray_state file (in
    SaveStateLocation of the nodes where the slurmctld daemon runs) must be
    explicitly deleted.

* Changes in Slurm 14.11.0pre4
==============================
 -- Added job array data structure and removed 64k array size restriction.
 -- Added SchedulerParameters options of bf_max_job_array_resv to control how
    many tasks of a job array should have resources reserved for them.
 -- Added more validity checking of incoming job submit requests.
 -- Added srun --export option to set/export specific environment variables.
 -- Scontrol modified to print separate error messages for job arrays with
    different exit codes on the different tasks of the job array. Applies to
    job suspend and resume operations.
 -- Fix race condition in CPU frequency set with job preemption.
 -- Always call select plugin on step termination, even if the job is also
    complete.
 -- Srun executable names beginning with "." will be resolved based upon the
    working directory and path on the compute node rather than the submit node.
 -- Add node state string suffix of "$" to identify nodes in maintenance
    reservation or scheduled for reboot. This applies to scontrol, sinfo,
    and sview commands.
 -- Enable scontrol to clear a nodes's scheduled reboot by setting its state
    to "RESUME".
 -- As per sbatch and srun documentation when the --signal option is used
    signal only the steps and unless, in the case, of a batch job B is
    specified in which case signal only the batch script.
 -- Modify AuthInfo configuration parameter to accept credential lifetime
    option.
 -- Modify crypto/munge plugin to use socket and timeout specified in AuthInfo.
 -- If we have a state for a step on completion put that in the database
    instead of guessing off the exit_code.
 -- Added squeue -P/--priority option that can be used to display pending jobs
    in the same order as used by the Slurm scheduler even if jobs are submitted
    to multiple partitions (job is reported once per usable partition).
 -- Improve the pending reason description for various QOS limits. For each
    QOS limit that causes a job to be pending print its specific reason.
    For example if job pends because of GrpCpus the squeue command will
    print QOSGrpCpuLimit as pending reason.
 -- sched/backfill - Set expected start time of job submitted to multiple
    partitions to the earliest start time on any of the partitions.
 -- Introduce a MAX_BATCH_REQUEUE define that indicates how many times a job
    can be requeued upon prolog failure. When the number is reached the job
    is put on hold with reason JobHoldMaxRequeue.
 -- Add sbatch job array option to limit the number of simultaneously running
    tasks from a job array (e.g. "--array=0-15%4").
 -- Implemented a new QOS limit MinCPUs. Users running under a QOS must
    request a minimum number of CPUs which is at least MinCPUs otherwise
    their job will pend.
 -- Introduced a new pending reason WAIT_QOS_MIN_CPUS to reflect the new QOS
    limit.
 -- Job array dependency based upon state is now dependent upon the state of
    the array as a whole (e.g. afterok requires ALL tasks to complete
    sucessfully, afternotok is true if ANY tasks does not complete successfully,
    and after requires all tasks to at least be started).
 -- The srun -u/--unbuffered options set the stdout of the task launched
    by srun to be line buffered.
 -- The srun options -/--label and -u/--unbuffered can be specified together.
    This limitation has been removed.
 -- Provide sacct display of gres accounting information per job.
 -- Change the node status size from uin16_t to uint32_t.

* Changes in Slurm 14.11.0pre3
==============================
 -- Move xcpuinfo.[c|h] to the slurmd since it isn't needed anywhere else
    and will avoid the need for all the daemons to link to libhwloc.
 -- Add memory test to job_submit/partition plugin.
 -- Added new internal Slurm functions xmalloc_nz() and xrealloc_nz(), which do
    not initialize the allocated memory to zero for improved performance.
 -- Modify hostlist function to dynamically allocate buffer space for improved
    performance.
 -- In the job_submit plugin: Remove all slurmctld locks prior to job_submit()
    being called for improved performance. If any slurmctld data structures are
    read or modified, add locks directly in the plugin.
 -- Added PriorityFlag LEVEL_BASED described in doc/html/level_based.shtml
 -- If Fairshare=parent is set on an account, that account's children will be
    effectively reparented for fairshare calculations to the first parent of
    their parent that is not Fairshare=parent.  Limits remain the same,
    only it's fairshare value is affected.

* Changes in Slurm 14.11.0pre2
==============================
 -- Added AllowSpecResourcesUsage configuration parameter in slurm.conf. This
    allows jobs to use specialized resources on nodes allocated to them if the
    job designates --core-spec=0.
 -- Add new SchedulerParameters option of build_queue_timeout to throttle how
    much time can be consumed building the job queue for scheduling.
 -- Added HealthCheckNodeState option of "cycle" to cycle through the compute
    nodes over the course of HealthCheckInterval rather than running all at
    the same time.
 -- Add job "reboot" option for Linux clusters. This invokes the configured
    RebootProgram to reboot nodes allocated to a job before it begins execution.
 -- Added squeue -O/--Format option that makes all job and step fields available
    for printing.
 -- Improve database slurmctld entry speed dramatically.
 -- Add "CPUs" count to output of "scontrol show step".
 -- Add support for lua5.2
 -- scancel -b signals only the batch step neither any other step nor any
    children of the shell script.
 -- MySQL - enforce NO_ENGINE_SUBSTITUTION
 -- Added CpuFreqDef configuration parameter in slurm.conf to specify the
    default CPU frequency and governor to be set at job end.
 -- Added support for job email triggers: TIME_LIMIT, TIME_LIMIT_90 (reached
    90% of time limit), TIME_LIMIT_80 (reached 80% of time limit), and
    TIME_LIMIT_50 (reached 50% of time limit). Applies to salloc, sbatch and
    srun commands.
 -- In slurm.conf add the parameter SrunPortRange=min-max. If this is configured
    then srun will use its dynamic ports only from the configured range.
 -- Make debug_flags 64 bit to handle more flags.

* Changes in Slurm 14.11.0pre1
==============================
 -- Modify etc/cgroup.release_common.example to set specify full path to the
    scontrol command. Also find cgroup mount point by reading cgroup.conf file.
 -- Improve qsub wrapper support for passing environment variables.
 -- Modify sdiag to report Slurm RPC traffic by user, type, count and time
    consumed.
 -- In select plugins, stop triggering extra logging based upon the debug flag
    CPU_Bind and use SelectType instead.
 -- Added SchedulerParameters options of bf_yield_interval and bf_yield_sleep
    to control how frequently and for how long the backfill scheduler will
    relinquish its locks.
 -- To support larger numbers of jobs when the StateSaveDirectory is on a
    file system that supports a limited number of files in a directory, add a
    subdirectory called "hash.#" based upon the last digit of the job ID.
 -- More gracefully handle missing batch script file. Just kill the job and do
    not drain the compute node.
 -- Add support for allocation of GRES by model type for heterogeneous systems
    (e.g. request a Kepler GPU, a Tesla GPU, or a GPU of any type).
 -- Record and enable display of nodes anticipated to be used for pending jobs.
 -- Modify squeue --start option to print the nodes expected to be used for
    pending job (in addition to expected start time, etc.).
 -- Add association hash to the assoc_mgr.
 -- Better logic to handle resized jobs when the DBD is down.
 -- Introduce MemLimitEnforce yes|no in slurm.conf. If set no Slurm will
    not terminate jobs if they exceed requested memory.
 -- Add support for non-consumable generic resources for resources that are
    limited, but can be shared between jobs.
 -- Introduce 5 new Slurm errors in slurm_errno.h related to job to better
    report error conditions.
 -- Modify scontrol to print error message for each array task when updating
    the entire array.
 -- Added gres_drain and gres_used fields to node_info_t.
 -- Added PriorityParameters configuration parameter in slurm.conf.
 -- Introduce automatic job requeue policy based on exit value. See RequeueExit
    and RequeueExitHold descriptions in slurm.conf man page.
 -- Modify slurmd to cache launched job IDs for more responsive job suspend and
    gang scheduling.
 -- Permit jobs steps full control over cpu_bind options if specialized cores
    are included in the job allocation.
 -- Added ChosLoc configuration parameter to specifiy the pathname of the
    Chroot OS tool.
 -- Sent SIGCONT/SIGTERM when a job is selected for preemption with GraceTime
    configured rather than waiting for GraceTime to be reached before notifying
    the job.
 -- Do not resume a job with specialized cores on a node running another job
    with specialized cores (only one can run at a time).
 -- Add specialized core count to job suspend/resume calls.
 -- task/affinity and task/cgroup - Correct specialized core task binding with
    user supplied invalid CPU mask or map.
 -- Add srun --cpu-freq options to set the CPU governor (OnDemand, Performance,
    PowerSave or UserSpace).
 -- Add support for a job step's CPU governor and/or frequency to be reset on
    suspend/resume (or gang scheduling). The default for an idle CPU will now
    be "ondemand" rather than "userspace" with the lowest frequency (to recover
    from hard slurmd failures and support gang scheduling).
 -- Added PriorityFlags option of Calulate_Running to continue recalculating
    the priority of running jobs.
 -- Replace round-robin front-end node selection with least-loaded algorithm.
 -- CRAY - Improve support of XC30 systems when running natively.
 -- Add new node configuration parameters CoreSpecCount, CPUSpecList and
    MemSpecLimit which support the reservation of resources for system use
    with Linux cgroup.
 -- Add child_forked() function to the slurm_acct_gather_profile plugin to
    close open files, leaving application with no extra open file descriptors.
 -- Cray/ALPS system - Enable backup controller to run outside of the Cray to
    accept new job submissions and most other operations on the pending jobs.
 -- Have sacct print job and task array id's for job arrays.
 -- Smooth out fanout logic
 -- If <sys/prctl.h> is present name major threads in slurmctld, for
    example backfill
    thread: slurmctld_bckfl, the rpc manager: slurmctld_rpcmg etc.
    The name can be seen for example using top -H.
 -- sview - Better job_array support.
 -- Provide more precise error message when job allocation can not be satisfied
    (e.g. memory, disk, cpu count, etc. rather than just "node configuration
    not available").
 -- Create a new DebugFlags named TraceJobs in slurm.conf to print detailed
    information about jobs in slurmctld. The information include job ids, state
    and node count.
 -- When a job dependency can never be satisfied do not cancel the job but keep
    pending with reason WAIT_DEP_INVALID (DependencyNeverSatisfied).

* Changes in Slurm 14.03.12
===========================
 -- Make it so previous versions of salloc/srun work with newer versions
    of Slurm daemons.
 -- PMI2 race condition fix.
 -- Avoid delay on commit for PMI rank 0 to improve performance with some
    MPI implementations.
 -- Correct the sbatch pbs parser to process -j.
 -- Squeue modified to not merge tasks of a job array if their wait reasons
    differ.
 -- Use the slurm_getpwuid_r wrapper of getpwuid_r to handle possible
    interrupts.
 -- Allow --ignore-pbs to take effect when read as an #SBATCH argument.
 -- Do not launch step if job killed while the prolog was running.

* Changes in Slurm 14.03.11
===========================
 -- ALPS - Fix depth for Memory items in BASIL with CLE 5.2
    (changed starting in 5.2.3).
 -- ALPS - Fix issue when tracking memory on a PerNode basis instead of
    PerCPU.
 -- Modify assoc_mgr_fill_in_qos() to allow for a flag to know if the QOS read
    lock was locked outside of the function or not.
 -- Give even better estimates on pending node count if no node count
    is requested.
 -- Fix jobcomp/mysql plugin for MariaDB 10+/Mysql 5.6+ to work with reserved
    work "partition".
 -- If requested (scontrol reboot node_name) reboot a node even if it has
    an maintenance reservation that is not active yet.
 -- Fix issue where exclusive allocations wouldn't lay tasks out correctly
    with CR_PACK_NODES.
 -- Do not requeue a batch job from slurmd daemon if it is killed while in
    the process of being launched (a race condition introduced in v14.03.9).
 -- Do not let srun overwrite SLURM_JOB_NUM_NODES if already in an allocation.
 -- Prevent a job's end_time from being too small after a basil reservation
    error.
 -- Fix sbatch --ntasks-per-core option from setting invalid
    SLURM_NTASKS_PER_CORE environment value.
 -- Prevent scancel abort when no job satisfies filter options.
 -- ALPS - Fix --ntasks-per-core option on multiple nodes.
 -- Double max string that Slurm can pack from 16MB to 32MB to support
    larger MPI2 configurations.
 -- Fix Centos5 compile issues.
 -- Log Cray MPI job calling exit() without mpi_fini(), but do not treat it as
    a fatal error. This partially reverts logic added in version 14.03.9.
 -- sview - Fix displaying of suspended steps elapsed times.
 -- Increase number of messages that get cached before throwing them away
    when the DBD is down.
 -- Fix jobs from starting in overlapping reservations that won't finish before
    a "maint" reservation begins.
 -- Fix "squeue --start" to override SQUEUE_FORMAT env variable.
 -- Restore GRES functionality with select/linear plugin. It was broken in
    version  14.03.10.
 -- Fix possible race condition when attempting to use QOS on a system running
    accounting_storage/filetxt.
 -- Sanity check for Correct QOS on startup.

* Changes in Slurm 14.03.10
===========================
 -- Fix a few sacctmgr error messages.
 -- Treat non-zero SlurmSchedLogLevel without SlurmSchedLogFile as a fatal
    error.
 -- Correct sched_config.html documentation SchedulingParameters
    should be SchedulerParameters.
 -- When using gres and cgroup ConstrainDevices set correct access
    permission for the batch step.
 -- Fix minor memory leak in jobcomp/mysql on slurmctld reconfig.
 -- Fix bug that prevented preservation of a job's GRES bitmap on slurmctld
    restart or reconfigure (bug was introduced in 14.03.5 "Clear record of a
    job's gres when requeued" and only applies when GRES mapped to specific
    files).
 -- BGQ: Fix race condition when job fails due to hardware failure and is
    requeued. Previous code could result in slurmctld abort with NULL pointer.
 -- Prevent negative job array index, which could cause slurmctld to crash.
 -- Fix issue with squeue/scontrol showing correct node_cnt when only tasks
    are specified.
 -- Check the status of the database connection before using it.
 -- ALPS - If an allocation requests -n set the BASIL -N option to the
    amount of tasks / number of node.
 -- ALPS - Don't set the env var APRUN_DEFAULT_MEMORY, it is not needed anymore.
 -- Fix potential buffer overflow.
 -- Give better estimates on pending node count if no node count is requested.
 -- BLUEGENE - Fix issue where requeuing jobs could cause an assert.

* Changes in Slurm 14.03.9
==========================
 -- If slurmd fails to stat(2) the configuration print the string describing
    the error code.
 -- Fix for mixing core base reservations with whole node based reservations
    to avoid overlapping erroneously.
 -- BLUEGENE - Remove references to Base Partition.
 -- sview - If compiled on a non-bluegene system then used to view a BGQ fix
    to allow sview to display blocks correctly.
 -- Fix bug in update reservation. When modifying the reservation the end time
    was set incorrectly.
 -- The start time of a reservation that is in ACTIVE state cannot be modified.
 -- Update the cgroup documentation about release agent for devices.
 -- MYSQL - fix for setting up preempt list on a QOS for multiple QOS.
 -- Correct a minor error in the scancel.1 man page related to the
    --signal option.
 -- Enhance the scancel.1 man page to document the sequence of signals sent
 -- Fix slurmstepd core dump if the cgroup hierarchy is not completed
    when terminating the job.
 -- Fix hostlist_shift to be able to give correct node names on names with a
    different number of dimensions than the cluster.
 -- BLUEGENE - Fix invalid pointer in corner case in the plugin.
 -- Make sure on a reconfigure the select information for a node is preserved.
 -- Correct logic to support job GRES specification over 31 bits (problem
    in logic converting int to uint32_t).
 -- Remove logic that was creating GRES bitmap for node when not needed (only
    needed when GRES mapped to specific files).
 -- BLUEGENE - Fix sinfo -tr before it would only print idle nodes correctly.
 -- BLUEGENE - Fix for licenses_only reservation on bluegene systems.
 -- sview - Verify pointer before using strchr.
 -- -M option on tools talking to a Cray from a non-Cray fixed.
 -- CRAY - Fix rpmbuild issue for missing file slurm.conf.template.
 -- Fix race condition when dealing with removing many associations at
    different times when reservations are using the associations that are
    being deleted.
 -- When a node's state is set to power_down/power_up, then execute
    SuspendProgram/ResumeProgram even if previously executed for that node.
 -- Fix logic determining when job configuration (i.e. running node power up
    logic) is complete.
 -- Setting the state of a node in powered down state node to "resume" will
    no longer cause it to reboot, but only clear the "drain" state flag.
 -- Fix srun documentation to remove SLURM_NODELIST being equivalent as the -w
    option (since it isn't).
 -- Fix issue with --hint=nomultithread and allocations with steps running
    arbitrary layouts (test1.59).
 -- PrivateData=reservation modified to permit users to view the reservations
    which they have access to (rather then preventing them from seeing ANY
    reservation).  Backport from 14.11 commit 77c2bd25c.
 -- Fix PrivateData=reservation when using associations to give privileges to
    a reservation.
 -- Better checking to see if select plugin is linear or not.
 -- Add support for time specification of "fika" (3 PM).
 -- Standardize qstat wrapper more.
 -- Provide better estimate of minimum node count for pending jobs using more
    job parameters.
 -- ALPS - Add SubAllocate to cray.conf file for those who like the way <=2.5
    did the ALPS reservation.
 -- Safer check to avoid invalid reads when shutting down the slurmctld with
    lots of jobs.
 -- Fix minor memory leak in the backfill scheduler when shutting down.
 -- Add ArchiveResvs to the output of sacctmgr show config and init the variable
    on slurmdbd startup.
 -- SLURMDBD - Only set the archive flag if purging the object
    (i.e ArchiveJobs PurgeJobs).  This is only a cosmetic change.
 -- Fix for job step memory allocation logic if step requests GRES and memory
    is not allocations are not managed.
 -- Fix sinfo to display mixed nodes as allocated in '%F' output.
 -- Sview - Fix cpu and node counts for partitions.
 -- Ignore NO_VAL in SLURMDB_PURGE_* macros.
 -- ALPS - Don't drain nodes if epilog fails.  It leaves them in drain state
    with no way to get them out.
 -- Fix issue with task/affinity oversubscribing cpus erroneously when
    using --ntasks-per-node.
 -- MYSQL - Fix load of archive files.
 -- Treat Cray MPI job calling exit() without mpi_fini() as fatal error for
    that specific task and let srun handle all timeout logic.
 -- Fix small memory leak in jobcomp/mysql.
 -- Correct tracking of licenses for suspended jobs on slurmctld reconfigure or
    restart.
 -- If failed to launch a batch job requeue it in hold.

* Changes in Slurm 14.03.8
==========================
 -- Fix minor memory leak when Job doesn't have nodes on it (Meaning the job
    has finished)
 -- Fix sinfo/sview to be able to query against nodes in reserved and other
    states.
 -- Make sbatch/salloc read in (SLURM|(SBATCH|SALLOC))_HINT in order to
    handle sruns in the script that will use it.
 -- srun properly interprets a leading "." in the executable name based upon
    the working directory of the compute node rather than the submit host.
 -- Fix Lustre misspellings in hdf5 guide
 -- Fix wrong reference in slurm.conf man page to what --profile option should
    be used for AcctGatherFilesystemType.
 -- Update HDF5 document to point out the SlurmdUser is who creates the
    ProfileHDF5Dir directory as well as all it's sub-directories and files.
 -- CRAY NATIVE - Remove error message for srun's ran inside an salloc that
    had --network= specified.
 -- Defer job step initiation of required GRES are in use by other steps rather
    than immediately returning an error.
 -- Deprecate --cpu_bind from sbatch and salloc.  These never worked correctly
    and only caused confusion since the cpu_bind options mostly refer to a
    step we opted to only allow srun to set them in future versions.
 -- Modify sgather to work if Nodename and NodeHostname differ.
 -- Changed use of JobContainerPlugin where it should be JobContainerType.
 -- Fix for possible error if job has GRES, but the step explicitly requests a
    GRES count of zero.
 -- Make "srun --gres=none ..." work when executed without a job allocation.
 -- Change the global eio_shutdown_time to a field in eio handle.
 -- Advanced reservation fixes for heterogeneous systems, especially when
    reserving cores.
 -- If --hint=nomultithread is used in a job allocation make sure any srun's
    ran inside the allocation can read the environment correctly.
 -- If batchdir can't be made set errno correctly so the slurmctld is notified
    correctly.
 -- Remove repeated batch complete if batch directory isn't able to be made
    since the slurmd will send the same message.
 -- sacctmgr fix default format for list transactions.
 -- BLUEGENE - Fix backfill issue with backfilling jobs on blocks already
    reserved for higher priority jobs.
 -- When creating job arrays the job specification files for each elements
    are hard links to the first element specification files. If the controller
    fails to make the links the files are copied instead.
 -- Fix error handling for job array create failure due to inability to copy
    job files (script and environment).
 -- Added patch in the contribs directory for integrating make version 4.0 with
    Slurm and renamed the previous patch "make-3.81.slurm.patch".
 -- Don't wait for an update message from the DBD to finish before sending rc
    message back.  In slow systems with many associations this could speed
    responsiveness in sacctmgr after adding associations.
 -- Eliminate race condition in enforcement of MaxJobCount limit for job arrays.
 -- Fix anomaly allocating cores for GRES with specific device/CPU mapping.
 -- cons_res - When requesting exclusive access make sure we set the number
    of cpus in the job_resources_t structure so as nodes finish the correct
    cpu count is displayed in the user tools.
 -- If the job_submit plugin calls take longer than 1 second to run, print a
    warning.
 -- Make sure transfer_s_p_options transfers all the portions of the
    s_p_options_t struct.
 -- Correct the srun man page, the SLURM_CPU_BIND_VERBOSE, SLURM_CPU_BIND_TYPE
    SLURM_CPU_BIND_LIST environment variable are set only when task/affinity
    plugin is configured.
 -- sacct - Initialize variables correctly to avoid incorrect structure
    reference.
 -- Performance adjustment to avoid calling a function multiple times when it
    only needs to be called once.
 -- Give more correct waiting reason if job is waiting on association/QOS
    MaxNode limit.
 -- DB - When sending lft updates to the slurmctld only send non-deleted lfts.
 -- BLUEGENE - Fix documentation on how to build a reservation less than
    a midplane.
 -- If Slurmctld fails to read the job environment consider it an error
    and abort the job.
 -- Add the name of the node a job is running on to the message printed by
    slurmstepd when terminating a job.
 -- Remove unsupported options from sacctmgr help and the dump function.
 -- Update sacctmgr man page removing reference to obsolete parameter
    MaxProcSecondsPerJob.
 -- Added more validity checking of incoming job submit requests.

* Changes in Slurm 14.03.7
==========================
 -- Correct typos in man pages.
 -- Add note to MaxNodesPerUser and multiple jobs running on the same node
    counting as multiple nodes.
 -- PerlAPI - fix renamed call from slurm_api_set_conf_file to
    slurm_conf_reinit.
 -- Fix gres race condition that could result in job deallocation error message.
 -- Correct NumCPUs count for jobs with --exclusive option.
 -- When creating reservation with CoreCnt, check that Slurm uses
    SelectType=select/cons_res, otherwise don't send the request to slurmctld
    and return an error.
 -- Save the state of scheduled node reboots so they will not be lost should the
    slurmctld restart.
 -- In select/cons_res plugin - Insure the node count does not exceed the task
    count.
 -- switch/nrt - Do not explicitly unload windows for a job on termination,
    only unload its table (which automatically unloads its windows).
 -- When HealthCheckNodeState is configured as IDLE don't run the
    HealthCheckProgram for nodes in any other states than IDLE.
 -- Remove all slurmctld locks prior to job_submit() being called in plugins.
    If any slurmctld data structures are read or modified, add locks directly
    in the plugin.
 -- Minor sanity check to verify the string sent in isn't NULL when using
    bit_unfmt.
 -- CRAY NATIVE - Fix issue on heavy systems to only run the NHC once per
    job/step completion.
 -- Remove unneeded step cleanup for pending steps.
 -- Fix issue where if a batch job was manually requeued the batch step
    information wasn't stored in accounting.
 -- When job is release from a requeue hold state clean up its previous
    exit code.
 -- Correct the srun man page about how the output from the user application
    is sent to srun.
 -- Increase the timeout of the main thread while waiting for the i/o thread.
    Allow up to 180 seconds for the i/o thread to complete.
 -- When using sacct -c to read the job completion data compute the correct
    job elapsed time.
 -- Perl package: Define some missing node states.
 -- When using AccountingStorageType=accounting_storage/mysql zero out the
    database index for the array elements avoiding duplicate database values.
 -- Reword the explanation of cputime and cputimeraw in the sacct man page.
 -- JobCompType allows "jobcomp/mysql" as valid name but the code used
    "job_comp/mysql" setting an incorrect default database.
 -- Try to load libslurm.so only when necessary.
 -- When nodes scheduled for reboot, set state to DOWN rather than FUTURE so
    they are still visible to sinfo. State set to IDLE after reboot completes.
 -- Apply BatchStartTimeout configuration to task launch and avoid aborting
    srun commands due to long running Prolog scripts.
 -- Fix minor memory leaks when freeing node_info_t structure.
 -- Fix various memory leaks in sview
 -- If a batch script is requeued and running steps get correct exit code/signal
    previous it was always -2.
 -- If step exitcode hasn't been set display with sacct the -2 instead
    of acting like it is a signal and exitcode.
 -- Send calculated step_rc for batch step instead of raw status as
    done for normal steps.
 -- If a job times out, set the exit code in accounting to 1 instead of the
    signal 1.
 -- Update the acct_gather.conf.5 man page removing the reference to
    InfinibandOFEDFrequency.
 -- Fix gang scheduling for jobs submitted to multiple partitions.
 -- Enable srun to submit job to multiple partitions.
 -- Update slurm.conf man page. When Epilog or Prolog fail the node state
    is set ro DRAIN.
 -- Start a job in the highest priority partition possible, even if it requires
    preempting other jobs and delaying initiation, rather than using a lower
    priority partition. Previous logic would preempt lower priority jobs, but
    then might start the job in a lower priority partition and not use the
    resources released by the preempted jobs.
 -- Fix SelectTypeParameters=CR_PACK_NODES for srun making both job and step
    resource allocation.