[slurm-users] "Low socket*core*thre" - solution?

[Caleb Smith]

Hi all,

Out of curiosity, what causes that? It'd be good to know for the future --
I ran into the same issue and just edited the memory down and it works fine
now, but I'd like to know why/what causes that error. I'm assuming low
resources, ie memory or CPU or whatever. Mind clarifying?

On Wed, May 2, 2018, 7:11 PM John Kelly <john.kelly at broadcom.com> wrote:

> Hi matt
>
> scontrol update nodename=odin state=resume
> scontrol update nodename=odin state=idle
>
> -jfk
>
>
>
> On Wed, May 2, 2018 at 5:28 PM, Matt Hohmeister <hohmeister at psy.fsu.edu>
> wrote:
>
>> I have a two-node cluster: the server/compute node is a Dell PowerEdge
>> R730; the compute node, a Dell PowerEdge R630. On both of these nodes, slurmd
>> -C gives me the exact same line:
>>
>>
>>
>> [me at odin slurm]$ slurmd -C
>>
>> NodeName=odin CPUs=40 Boards=1 SocketsPerBoard=2 CoresPerSocket=10
>> ThreadsPerCore=2 RealMemory=128655
>>
>>
>>
>> [me at thor slurm]$ slurmd -C
>>
>> NodeName=thor CPUs=40 Boards=1 SocketsPerBoard=2 CoresPerSocket=10
>> ThreadsPerCore=2 RealMemory=128655
>>
>>
>>
>> So I edited my slurm.conf appropriately:
>>
>>
>>
>> NodeName=odin CPUs=40 Boards=1 SocketsPerBoard=2 CoresPerSocket=10
>> ThreadsPerCore=2 RealMemory=128655
>>
>> NodeName=thor CPUs=40 Boards=1 SocketsPerBoard=2 CoresPerSocket=10
>> ThreadsPerCore=2 RealMemory=128655
>>
>>
>>
>> …and it looks good, except for the drain on my server/compute node:
>>
>>
>>
>> [me at odin slurm]$ sinfo
>>
>> PARTITION AVAIL  TIMELIMIT  NODES  STATE NODELIST
>>
>> debug*       up   infinite      1  drain odin
>>
>> debug*       up   infinite      1   idle thor
>>
>>
>>
>> …for the following reason:
>>
>>
>>
>> [me at odin slurm]$ sinfo -R
>>
>> REASON               USER      TIMESTAMP           NODELIST
>>
>> Low socket*core*thre slurm     2018-05-02T11:55:38 odin
>>
>>
>>
>> Any ideas?
>>
>>
>>
>> Thanks!
>>
>>
>>
>> Matt Hohmeister
>>
>> Systems and Network Administrator
>>
>> Department of Psychology
>>
>> Florida State University
>>
>> PO Box 3064301
>>
>> Tallahassee, FL 32306-4301
>>
>> Phone: +1 850 645 1902
>>
>> Fax: +1 850 644 7739
>>
>>
>>
>
>
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