[slurm-users] Question about memory allocation

Mahmood Naderan mahmood.nt at gmail.com
Mon Dec 16 06:30:17 UTC 2019

A follow up to the previous email.

Current state of memory of nodes are

   RealMemory=64259 AllocMem=1024 FreeMem=38620 Sockets=32 Boards=1
   RealMemory=120705 AllocMem=1024 FreeMem=309 Sockets=32 Boards=1
   RealMemory=64259 AllocMem=1024 FreeMem=59334 Sockets=32 Boards=1
   RealMemory=64259 AllocMem=1024 FreeMem=282 Sockets=10 Boards=1

However, a script with

#SBATCH --mem=10GB
#SBATCH --nodes=4
#SBATCH --ntasks-per-node=5

stuck in PD state with (resources) reason.

Any idea about that?


On Mon, Dec 16, 2019 at 9:49 AM Mahmood Naderan <mahmood.nt at gmail.com>

> Hi,
> If I write
> #SBATCH --mem=10GB
> #SBATCH --nodes=4
> #SBATCH --ntasks-per-node=5
> will it reserve (looks for) 200GB of memory for the job? Or this is the
> hard limit of the memory required by job?
> Regards,
> Mahmood
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