Hi Nick
I'm curious what makes you think job is using all CPU cores once running?
Would you be able to share output from 'ps' command while job is running?:
ps -p <pid> -L -o pid,tid,psr,pcpu
Execute it on the compute node where your job is running.
<pid> is the process id of the job/task.
Thank you.
-----Original Message-----
From: slurm-users <slurm-users-boun...@lists.schedmd.com> On Behalf Of DENOU,
MEHDI
Sent: Friday, September 21, 2018 1:17 PM
To: Slurm User Community List <slurm-users@lists.schedmd.com>; slurm-users
<slurm-us...@schedmd.com>
Subject: Re: [slurm-users] Job allocating more CPUs than requested
Hello Nick,
What is the result with only -n 1 ?
Could you provide your slurm.conf ?
A lot of parameters are involved in the allocation process. The choice between
a few cores or a whole node depends mostly of "SelectType" and "Shared" in the
partition definition.
Regards,
-----Original Message-----
From: slurm-users <slurm-users-boun...@lists.schedmd.com> On Behalf Of Nicolas
Bock
Sent: Friday, September 21, 2018 6:54 PM
To: slurm-users <slurm-us...@schedmd.com>
Subject: [slurm-users] Job allocating more CPUs than requested
Hi,
A job run with
sbatch --ntasks=1 \
--ntasks-per-node=1 \
--cpus-per-task=1 \ --ntasks-per-core=1 \
--sockets-per-core=1 \
--cores-per-socket=1 \
--threads-per-core=1
shows as requesting 1 CPU when in queue, but then allocates all CPU cores once
running. Why is that?
Any suggestions would be greatly appreciated,
Nick
