Dear developers, when I do
salloc -p sandy --overcommit --ntasks-per-node=16 --ntasks-per-core=2 -t 10
all tasks run on a single core:
root@taurusadmin1:~> scontrol -d show job 4576028
JobId=4576028 Name=bash
UserId=mark(19423) GroupId=hpcsupport(50245)
Priority=89609 Account=hpcsupport QOS=normal
JobState=RUNNING Reason=None Dependency=(null)
Requeue=1 Restarts=0 BatchFlag=0 ExitCode=0:0
DerivedExitCode=0:0
RunTime=00:00:06 TimeLimit=00:10:00 TimeMin=N/A
SubmitTime=2014-01-29T15:15:40 EligibleTime=2014-01-29T15:15:40
StartTime=2014-01-29T15:15:40 EndTime=2014-01-29T15:25:40
PreemptTime=None SuspendTime=None SecsPreSuspend=0
Partition=sandy AllocNode:Sid=tauruslogin1:31534
ReqNodeList=(null) ExcNodeList=(null)
NodeList=taurusi1108
BatchHost=taurusi1108
NumNodes=1 NumCPUs=1 CPUs/Task=1 ReqS:C:T=*:*:*
Nodes=taurusi1108 CPU_IDs=15 Mem=0
MinCPUsNode=1 MinMemoryNode=0 MinTmpDiskNode=0
Features=(null) Gres=(null) Reservation=(null)
Shared=OK Contiguous=0 Licenses=(null) Network=(null)
Command=(null)
WorkDir=/home/h3/mark
(We have even disabled our own plugins - it did not help.)
slurm.conf:
SelectType=select/cons_res
SelectTypeParameters=CR_Core_Memory,CR_CORE_DEFAULT_DIST_BLOCK,CR_ONE_TASK_PER_CORE,CR_ALLOCATE_FULL_SOCKET
Thank you for your help,
Ulf
--
___________________________________________________________________
Dr. Ulf Markwardt
Technische Universität Dresden
Center for Information Services and High Performance Computing (ZIH)
01062 Dresden, Germany
Phone: (+49) 351/463-33640 WWW: http://www.tu-dresden.de/zih
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