[slurm-users] How to submit simple job on Master and Compute nodes

[Zainul Abiddin]

Hi All,

Please help me to submit a simple job on master and compute nodes.

Here is the my commands

[root@smaster ~]# sinfo -Nl
Thu Feb 04 16:54:58 2021
NODELIST   NODES PARTITION       STATE CPUS    S:C:T MEMORY TMP_DISK WEIGHT AVAIL_FE REASON
smaster        1      hpc*        idle 4       4:1:1   1024        0      1   (null) none
snode          1     debug        idle 4       4:1:1   1024        0      1   (null) none
[root@smaster ~]# srun -n 4 -N 1 --mem=100 --time 0:0:10 /bin/hostname
smaster
smaster
smaster
smaster
[root@smaster ~]# srun -n 4 -N 2 --mem=100 --time 0:0:10 /bin/hostname
srun: Requested partition configuration not available now
srun: job 25 queued and waiting for resources
srun: Job allocation 25 has been revoked
srun: Force Terminated job 25
[root@smaster ~]#

[root@smaster ~]# cat /etc/slurm/slurm.conf
# slurm.conf file generated by configurator easy.html.
# Put this file on all nodes of your cluster.
# See the slurm.conf man page for more information.
#
.

.

.

#
# COMPUTE NODES
NodeName=smaster NodeAddr=192.168.1.195 CPUs=4 RealMemory=1024 State=UNKNOWN
NodeName=snode NodeAddr=192.168.1.196 CPUs=4 RealMemory=1024 State=UNKNOWN
PartitionName=debug Nodes=snode Default=YES MaxTime=INFINITE State=UP
PartitionName=hpc Nodes=smaster Default=YES MaxTime=INFINITE State=UP

[root@smaster ~]#

and how do I configure a single partition for two nodes.

--

Regards

Zain

[Loris Bennett]

Hi Zainul,

Zainul Abiddin <zainu...@gmail.com> writes:

> Hi All,
>
> Please help me to submit a simple job on master and compute nodes.
> Here is the my commands
>
> [root@smaster ~]# sinfo -Nl
> Thu Feb 04 16:54:58 2021
> NODELIST NODES PARTITION STATE CPUS S:C:T MEMORY TMP_DISK WEIGHT AVAIL_FE REASON
> smaster 1 hpc* idle 4 4:1:1 1024 0 1 (null) none
> snode 1 debug idle 4 4:1:1 1024 0 1 (null) none
> [root@smaster ~]# srun -n 4 -N 1 --mem=100 --time 0:0:10 /bin/hostname
> smaster
> smaster
> smaster
> smaster
> [root@smaster ~]# srun -n 4 -N 2 --mem=100 --time 0:0:10 /bin/hostname
> srun: Requested partition configuration not available now
> srun: job 25 queued and waiting for resources
> srun: Job allocation 25 has been revoked
> srun: Force Terminated job 25
> [root@smaster ~]#

This job probably can't start, because you only have one node in the
default partition 'hpc' but the job requests two.

> [root@smaster ~]# cat /etc/slurm/slurm.conf
> # slurm.conf file generated by configurator easy.html.
> # Put this file on all nodes of your cluster.
> # See the slurm.conf man page for more information.
> #
> .
> .
> .
> #
> # COMPUTE NODES
> NodeName=smaster NodeAddr=192.168.1.195 CPUs=4 RealMemory=1024 State=UNKNOWN
> NodeName=snode NodeAddr=192.168.1.196 CPUs=4 RealMemory=1024 State=UNKNOWN
> PartitionName=debug Nodes=snode Default=YES MaxTime=INFINITE State=UP
> PartitionName=hpc Nodes=smaster Default=YES MaxTime=INFINITE State=UP
>
> [root@smaster ~]#
>
> and how do I configure a single partition for two nodes.

PartitionName=hpc Nodes=smaster,snode Default=YES MaxTime=INFINITE State=UP

Cheers,

Loris

--
Dr. Loris Bennett (Hr./Mr.)
ZEDAT, Freie Universität Berlin Email loris....@fu-berlin.de

[Zainul Abiddin]

Thanks for your input Loris Bennett,

Now i am able to submit jobs on both nodes.

--

Regards

Zain