[slurm-users] scontrol show assoc_mgr showing more resources in use than squeue

Renfro, Michael Renfro at tntech.edu
Fri May 8 13:34:11 UTC 2020


Hey, folks. I've had a 1000 CPU-day (1440000 CPU-minutes) GrpTRESMins limit applied to each user for years. It generally works as intended, but I have one user I've noticed whose usage is highly inflated from reality, causing the GrpTRESMins limit to be enforced much earlier than necessary:

squeue output, showing roughly 340 CPU-days in running jobs, and all other jobs blocked:

# squeue -u USER
JOBID  PARTI       NAME     USER ST         TIME CPUS NODES NODELIST(REASON) PRIORITY TRES_P START_TIME           TIME_LEFT
747436 batch        job     USER PD         0:00 28   1     (AssocGrpCPURunM 4784     N/A    N/A                  10-00:00:00
747437 batch        job     USER PD         0:00 28   1     (AssocGrpCPURunM 4784     N/A    N/A                  4-04:00:00
747438 batch        job     USER PD         0:00 28   1     (AssocGrpCPURunM 4784     N/A    N/A                  10-00:00:00
747439 batch        job     USER PD         0:00 28   1     (AssocGrpCPURunM 4784     N/A    N/A                  4-04:00:00
747440 batch        job     USER PD         0:00 28   1     (AssocGrpCPURunM 4784     N/A    N/A                  10-00:00:00
747441 batch        job     USER PD         0:00 28   1     (AssocGrpCPURunM 4784     N/A    N/A                  4-14:00:00
747442 batch        job     USER PD         0:00 28   1     (AssocGrpCPURunM 4784     N/A    N/A                  10-00:00:00
747446 batch        job     USER PD         0:00 14   1     (AssocGrpCPURunM 4778     N/A    N/A                  4-00:00:00
747447 batch        job     USER PD         0:00 14   1     (AssocGrpCPURunM 4778     N/A    N/A                  4-00:00:00
747448 batch        job     USER PD         0:00 14   1     (AssocGrpCPURunM 4778     N/A    N/A                  4-00:00:00
747445 batch        job     USER  R      8:39:17 14   1     node002          4778     N/A    2020-05-07T23:02:19  3-15:20:43
747444 batch        job     USER  R     16:03:13 14   1     node003          4515     N/A    2020-05-07T15:38:23  3-07:56:47
747435 batch        job     USER  R   1-10:07:42 28   1     node005          3784     N/A    2020-05-06T21:33:54  8-13:52:18

scontrol output, showing roughly 980 CPU-days in use on the second line, and thus blocking additional jobs:

# scontrol -o show assoc_mgr users=USER account=ACCOUNT flags=assoc
ClusterName=its Account=ACCOUNT UserName= Partition= Priority=0 ID=21 SharesRaw/Norm/Level/Factor=1/0.03/35/0.00 UsageRaw/Norm/Efctv=2733615872.34/0.39/0.71 ParentAccount=PARENT(9) Lft=1197 DefAssoc=No GrpJobs=N(4) GrpJobsAccrue=N(10) GrpSubmitJobs=N(14) GrpWall=N(616142.94) GrpTRES=cpu=N(84),mem=N(168000),energy=N(0),node=N(40),billing=N(420),fs/disk=N(0),vmem=N(0),pages=N(0),gres/gpu=N(0) GrpTRESMins=cpu=N(9239391),mem=N(18478778157),energy=N(0),node=N(616142),billing=N(45546470),fs/disk=N(0),vmem=N(0),pages=N(0),gres/gpu=N(0) GrpTRESRunMins=cpu=N(1890060),mem=N(3780121866),energy=N(0),node=N(113778),billing=N(9450304),fs/disk=N(0),vmem=N(0),pages=N(0),gres/gpu=N(0) MaxJobs= MaxJobsAccrue= MaxSubmitJobs= MaxWallPJ= MaxTRESPJ= MaxTRESPN= MaxTRESMinsPJ= MinPrioThresh=
ClusterName=its Account=ACCOUNT UserName=USER(UID) Partition= Priority=0 ID=56 SharesRaw/Norm/Level/Factor=1/0.08/13/0.00 UsageRaw/Norm/Efctv=994969457.37/0.14/0.36 ParentAccount= Lft=1218 DefAssoc=Yes GrpJobs=N(3) GrpJobsAccrue=N(10) GrpSubmitJobs=N(13) GrpWall=N(227625.69) GrpTRES=cpu=N(56),mem=N(112000),energy=N(0),node=N(35),billing=N(280),fs/disk=N(0),vmem=N(0),pages=N(0),gres/gpu=8(0) GrpTRESMins=cpu=N(3346095),mem=N(6692190572),energy=N(0),node=N(227625),billing=N(16580497),fs/disk=N(0),vmem=N(0),pages=N(0),gres/gpu=N(0) GrpTRESRunMins=cpu=1440000(1407455),mem=N(2814910466),energy=N(0),node=N(88171),billing=N(7037276),fs/disk=N(0),vmem=N(0),pages=N(0),gres/gpu=N(0) MaxJobs= MaxJobsAccrue= MaxSubmitJobs= MaxWallPJ= MaxTRESPJ= MaxTRESPN= MaxTRESMinsPJ= MinPrioThresh=

Where can I investigate to find the cause of this difference? Thanks.


--

Mike Renfro, PhD  / HPC Systems Administrator, Information Technology Services

931 372-3601      / Tennessee Tech University
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