bug 436

bug 428

This problem was reported by Harvard University and could be
reproduced with a command line of "srun -N1 --tasks-per-node=2 -O id".
With other job types, the error message could be logged many times
for each job. This change logs the error once per job and only if
the job request does not include the -O/--overcommit option.

Effects jobs with --exclusive and --cpus-per-task options
bug 355

The SLURM Makefile.am scripts use pkglibexecdir. One source indicates
that this was not added until automake 1.10.2
(https://github.com/rerun/rerun/issues/167).

So we just made that to be the minimum.

default and appeared to break other things.

if on "scontrol reconfig" when AllowNodes is manually changed using
scontrol since last slurmctld restart.

due to either down nodes or explicit resizing.
Generated slurmctld errors of this type:
[2013-06-04T12:43:46+06:00] error: gres/gpu: step_test 68662.4294967294 gres_bit_alloc is NULL
This is a movement of the logic introduced in commit
https://github.com/SchedMD/slurm/commit/6fff97bb77d2d88aa808c47fd7880246a0c1d090
to eliminate a memory leak.

Since we don't currently track energy usage per task (only per step).
Otherwise we get double the energy.

Andy Wettstein (University of Chicago) reported privately to me that slurmctld
2.5.4 crashed after he enabled the priority/multifactor2 plugin due to a
division by zero error.

I was able to reproduce the crash by creating an account hierarchy where all
the accounts and users had zero shares.
See bug 315

Without this change, it appears that POE ignores the -procs argument
resulting in a job step request with multiple host names, but only
one ntask required

We're having some trouble getting our slurm jobs to successfully
restart after a checkpoint.  For this test, I'm using sbatch and a
simple, single-threaded executable.  Slurm is 2.5.4, blcr is 0.8.5.
I'm submitting the job using sbatch:

$ sbatch -n 1 -t 12:00:00 bin/bowtie-ex.sh

I am able to create the checkpoint and vacate the node:

$ scontrol checkpoint create 137
.... time passes ....
$ scontrol vacate 137

At that point, I see the checkpoint file from blcr in the current
directory and the checkpoint file from Slurm
in /var/spool/slurm-llnl/checkpoint.  However, when I attempt to
restart the job:

$ scontrol checkpoint restart 137
scontrol_checkpoint error: Node count specification invalid

In slurmctld's log (at level 7) I see:

[2013-05-29T12:41:08-07:00] debug2: Processing RPC: REQUEST_CHECKPOINT(restart) from uid=*****
[2013-05-29T12:41:08-07:00] debug3: Version string in job_ckpt header is JOB_CKPT_002
[2013-05-29T12:41:08-07:00] _job_create: max_nodes == 0
[2013-05-29T12:41:08-07:00] _slurm_rpc_checkpoint restart 137: Node count specification invalid

Uninitialized variables resulted in error of
"cons_res: sync loop not progressing, holding job #"

The most notable problem case is on a cray where a job step
specifically requests one or more node that are not the first
nodes in the job allocation

The problem we have observed is the backfill scheduler temporarily
gives up its locks (one second), but then reclaims them before the
backlog of work completes, basically keeping the backfill scheduler
running for a really long time when under a heavy load.
bug 297

Defers (rather than forgets) reboot request with job running on the
node within a reservation.

all preemptable jobs on the midplane instead of just the ones it needed to.

This bug was introduced in commit f1cf6d2d
fix for bug 290

Downing the node will kill all jobs allocated to the node, very bad
on something like a BlueGene system

the node tab and we didn't notice.

Without this change pmdv12 was bound to one CPU and could not use
all of the resources allocated to the job step for the tasks that
it launches

This only changes behaviour when the --ntasks option is not used,
but the --cpus-per-task option is use

also "-euidevice sn_single".

Avoid placing pending jobs in AdminHold state due to backfill scheduler
interactions with advanced reservation.
Specifically, if the backfill scheduler tests a pending job can be
scheduled after it's advanced reservation ends then the job was
assigned a priority of zero (AdminHold).