[slurm-users] Sharing a GPU
kmwil at mimuw.edu.pl
Sun Apr 3 21:19:01 UTC 2022
I am an administrator of a GPU cluster (Slurm version 19.05.5).
Could someone help me a little bit and explain if a single
GPU can be shared between multiple users? My experience and
documentation tells me that it is not possible. But even after
some time Slurm is still a beast to me and I find myself
* I setup the cluster to assign GPUs on multi-GPU servers
to different users using GRES. This works fine and several
users can work on a multi-GPU machine (--gres=gpu:N/--gpu:N).
* But sometimes I have requests to allow a group of students
to work simultaneously, interactively on a small partition,
where there is more users than GPUs. So I thought that maybe
an MPS is a solutions, but the docs says that MPS is a way
to run multiple jobs of *the same* user on a single GPU.
When another user is requesting a GPU by MPS, the job is enqueued
and waiting for the first users' MPS server to finish.
So, this is not a solution for a multi-user, simultaneous/parallel
Is there a way to share a GPU between multiple users?
The requirement is, say:
* 16 users working interactively, simultaneously
* 4 GPUs partition
Kamil Wilczek [https://keys.openpgp.org/]
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