Hi,

what is the output of the command:

slurmd -C rocks7


Best regards

Werner



On 05/05/2018 06:56 PM, Mahmood Naderan wrote:
Quick follow up.
I see the Sockets for the head node is 1 while for the compute nodes
is 32. And I think that is the reason, why slurm only see one cpu
(CPUTot=1).

May I ask what is the difference between CPUs and Sockets in slurm.conf?
Regards,
Mahmood




On Sat, May 5, 2018 at 9:24 PM, Mahmood Naderan <mahmood...@gmail.com> wrote:
Hi,
I also have the same problem. I think by default, slurm won't add the
head node as a compute node. I manually set the state to resume,
However, the number of cores is still low (1) and not what I specified
in slurm.conf


[root@rocks7 mahmood]# scontrol show node rocks7
NodeName=rocks7 Arch=x86_64 CoresPerSocket=1
    CPUAlloc=0 CPUErr=0 CPUTot=1 CPULoad=0.14
    AvailableFeatures=(null)
    ActiveFeatures=(null)
    Gres=(null)
    NodeAddr=10.1.1.1 NodeHostName=rocks7 Version=17.11
    OS=Linux 3.10.0-693.5.2.el7.x86_64 #1 SMP Fri Oct 20 20:32:50 UTC 2017
    RealMemory=64261 AllocMem=0 FreeMem=1247 Sockets=1 Boards=1
    State=IDLE+DRAIN ThreadsPerCore=1 TmpDisk=281775 Weight=1 Owner=N/A
MCS_label=N/A
    Partitions=WHEEL,EMERALD
    BootTime=2018-04-13T13:04:59 SlurmdStartTime=2018-04-13T13:05:17
    CfgTRES=cpu=1,mem=64261M,billing=1
    AllocTRES=
    CapWatts=n/a
    CurrentWatts=0 LowestJoules=0 ConsumedJoules=0
    ExtSensorsJoules=n/s ExtSensorsWatts=0 ExtSensorsTemp=n/s
    Reason=Low socket*core*thread count, Low CPUs [root@2018-05-05T21:18:05]

[root@rocks7 mahmood]# scontrol update node=rocks7 state=resume
[root@rocks7 mahmood]# scontrol show node rocks7
NodeName=rocks7 Arch=x86_64 CoresPerSocket=1
    CPUAlloc=0 CPUErr=0 CPUTot=1 CPULoad=0.14
    AvailableFeatures=(null)
    ActiveFeatures=(null)
    Gres=(null)
    NodeAddr=10.1.1.1 NodeHostName=rocks7 Version=17.11
    OS=Linux 3.10.0-693.5.2.el7.x86_64 #1 SMP Fri Oct 20 20:32:50 UTC 2017
    RealMemory=64261 AllocMem=0 FreeMem=1247 Sockets=1 Boards=1
    State=IDLE ThreadsPerCore=1 TmpDisk=281775 Weight=1 Owner=N/A MCS_label=N/A
    Partitions=WHEEL,EMERALD
    BootTime=2018-04-13T13:04:59 SlurmdStartTime=2018-04-13T13:05:17
    CfgTRES=cpu=1,mem=64261M,billing=1
    AllocTRES=
    CapWatts=n/a
    CurrentWatts=0 LowestJoules=0 ConsumedJoules=0
    ExtSensorsJoules=n/s ExtSensorsWatts=0 ExtSensorsTemp=n/s
[root@rocks7 mahmood]# grep -A 3 -B 3 rocks7 /etc/slurm/slurm.conf
DebugFlags=Priority,NO_CONF_HASH,backfill,BackfillMap

NodeName=DEFAULT State=UNKNOWN
NodeName=rocks7 NodeAddr=10.1.1.1 CPUs=20
PartitionName=DEFAULT AllocNodes=rocks7 State=UP
PartitionName=DEBUG

####### Power Save Begin ##################





Regards,
Mahmood




On Sat, May 5, 2018 at 5:06 PM, Chris Samuel <ch...@csamuel.org> wrote:
On Thursday, 3 May 2018 10:28:46 AM AEST Matt Hohmeister wrote:

…and it looks good, except for the drain on my server/compute node:
I think if you've had the config wrong at some point in the past then slurmctld
will remember the error and you'll need to manually clear it with:

scontrol update node=${NODE} state=resume

All the best,
Chris
--
  Chris Samuel  :  http://www.csamuel.org/  :  Melbourne, VIC




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