NEWS

 -- 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=<names>". 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 <message>" 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 <name>" 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=<name> 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.