[slurm-users] Slurm 1 CPU

Andy Riebs andy.riebs at hpe.com
Thu Apr 4 23:00:50 UTC 2019

in slurm.conf, on the line(s) starting "NodeName=", you'll want to add 
specs for sockets, cores, and threads/core.

*From:* Chris Bateson <cbateson at vt.edu>
*Sent:* Thursday, April 04, 2019 5:18PM
*To:* Slurm-users <slurm-users at lists.schedmd.com>
*Subject:* [slurm-users] Slurm 1 CPU
I should start out by saying that I am extremely new to anything HPC.  
Our end users purchased a 20 node cluster which a vendor set up for us 
with Bright/Slurm.

After our vendor said everything was complete and we started migrating 
our users workflow to the new cluster they discovered that they can't 
run more than 1 job per node at a time.  We started researching enabling 
consumable resources which I believe we've done so however we're getting 
the same result.

I've just discovered today that both *scontrol show node* and *sinfo 
-lNe* show that each of our nodes have 1 CPU.  I'm guessing that's why 
we can't submit more than 1 job at a time.  I'm trying to determine 
where is it getting this information and how can I get it to display the 
correct CPU information.

Sample info:

*scontrol show node*

    NodeName=cnode001 Arch=x86_64 CoresPerSocket=1
        CPUAlloc=0 CPUErr=0 CPUTot=1 CPULoad=0.01
        NodeAddr=cnode001 NodeHostName=cnode001 Version=17.11
        OS=Linux 3.10.0-693.el7.x86_64 #1 SMP Thu Jul 6 19:56:57 EDT 2017
        RealMemory=192080 AllocMem=0 FreeMem=188798 Sockets=1 Boards=1
        State=IDLE ThreadsPerCore=1 TmpDisk=2038 Weight=1 Owner=N/A
        BootTime=2019-03-26T14:28:24 SlurmdStartTime=2019-03-26T14:29:55
        CurrentWatts=0 LowestJoules=0 ConsumedJoules=0
        ExtSensorsJoules=n/s ExtSensorsWatts=0 ExtSensorsTemp=n/s

*sinfo -lNe*

    cnode001       1     defq*        idle    1 1:1:1 192080     2038   
       1   (null) none


    Architecture:          x86_64
    CPU op-mode(s):        32-bit, 64-bit
    Byte Order:            Little Endian
    CPU(s):                48
    On-line CPU(s) list:   0-47
    Thread(s) per core:    1
    Core(s) per socket:    24
    Socket(s):             2
    NUMA node(s):          2
    Vendor ID:             GenuineIntel
    CPU family:            6
    Model:                 85
    Model name:            Intel(R) Xeon(R) Platinum 8168 CPU @ 2.70GHz
    Stepping:              4
    CPU MHz:               2700.000
    BogoMIPS:              5400.00
    Virtualization:        VT-x
    L1d cache:             32K
    L1i cache:             32K
    L2 cache:              1024K
    L3 cache:              33792K
    NUMA node0 CPU(s):
    NUMA node1 CPU(s):
    Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep
    mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht
    tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon
    pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni
    pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 xtpr
    pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer
    aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch epb cat_l3
    cdp_l3 intel_pt tpr_shadow vnmi flexpriority ept vpid fsgsbase
    tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm mpx rdt_a
    avx512f avx512dq rdseed adx smap clflushopt clwb avx512cd avx512bw
    avx512vl xsaveopt xsavec xgetbv1 cqm_llc cqm_occup_llc cqm_mbm_total
    cqm_mbm_local dtherm ida arat pln pts

*slrum.conf SelectType Configuration*

    PartitionName=defq Default=YES MinNodes=1 AllowGroups=ALL
    PriorityJobFactor=1 PriorityTier=1 DisableRootJobs=NO RootOnly=NO
    Hidden=NO Shared=NO GraceTime=0 PreemptMode=OFF ReqResv=NO
    AllowAccounts=ALL AllowQos=ALL LLN=NO ExclusiveUser=NO
    OverSubscribe=YES OverTimeLimit=0 State=UP Nodes=cnode[001-020]

I can provide other configs if you feel that it could help.

Any ideas?  I would have thought that slurm would grab the CPU 
information from the CPU instead of the configuration.


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