Hello, I am in the process of setting up our SLURM environment. We want to use SLURM during our DDoS exercises for dispatching DDoS attack scripts. We need a lot of parallel running jobs on a total of 3 nodes.I can't get it to run more than 128 jobs simultaneously. There are 128 cpu's in the compute nodes.
How can I ensure that I can run more jobs in parallel than there are CPUs in the compute node? Thanks Karl My srun script is: srun --exclusive --nodes 3 --ntasks 384 /ddos/demo/showproc.sh And my slurm.conf file: ClusterName=ddos-cluster ControlMachine=slurm SlurmUser=ddos SlurmctldPort=6817 SlurmdPort=6818 AuthType=auth/munge StateSaveLocation=/opt/slurm/spool/ctld SlurmdSpoolDir=/opt/slurm/spool/d SwitchType=switch/none MpiDefault=none SlurmctldPidFile=/opt/slurm/run/.pid SlurmdPidFile=/opt/slurm/run/slurmd.pid ProctrackType=proctrack/pgid PluginDir=/opt/slurm/lib/slurm ReturnToService=2 TaskPlugin=task/none SlurmctldTimeout=300 SlurmdTimeout=300 InactiveLimit=0 MinJobAge=300 KillWait=30 Waittime=0 SchedulerType=sched/backfill SelectType=select/cons_tres SelectTypeParameters=CR_Core SlurmctldDebug=3 SlurmctldLogFile=/opt/slurm/log/slurmctld.log SlurmdDebug=3 SlurmdLogFile=/opt/slurm/log/slurmd.log JobCompType=jobcomp/none JobAcctGatherType=jobacct_gather/none AccountingStorageTRES=gres/gpu DebugFlags=CPU_Bind,gres AccountingStorageType=accounting_storage/slurmdbd AccountingStorageHost=localhost AccountingStoragePass=/var/run/munge/munge.socket.2 AccountingStorageUser=slurm SlurmctldParameters=enable_configurable GresTypes=gpu DefMemPerNode=256000 NodeName=aivd CPUs=128 Boards=1 SocketsPerBoard=2 CoresPerSocket=16 ThreadsPerCore=4 RealMemory=261562 State=UNKNOWN NodeName=mivd CPUs=128 Boards=1 SocketsPerBoard=2 CoresPerSocket=16 ThreadsPerCore=4 RealMemory=261562 State=UNKNOWN NodeName=fiod CPUs=128 Boards=1 SocketsPerBoard=2 CoresPerSocket=16 ThreadsPerCore=4 RealMemory=261562 State=UNKNOWN PartitionName=ddos Nodes=ALL Default=YES MaxTime=INFINITE State=UP PartitionName=adhoc Nodes=ALL Default=YES MaxTime=INFINITE State=UP
