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<p>It should exist in the user environment as well.</p>
<p>I would check the users .bashrc and .bash_profile settings to see
if they are doing anything that will change that.</p>
<p>Brian Andrus<br>
</p>
<div class="moz-cite-prefix">On 3/23/2022 7:42 AM,
<a class="moz-txt-link-abbreviated" href="mailto:taleintervenor@sjtu.edu.cn">taleintervenor@sjtu.edu.cn</a> wrote:<br>
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<p class="MsoNormal"><span lang="EN-US">Hi, all:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">We found a problem that
slurm job with argument such as <b>--gres gpu:1 </b>didn’t
be restricted with gpu usage, user still can see all gpu
card on allocated nodes.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Our gpu node has 4 cards
with their gres.conf to be:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">> cat
/etc/slurm/gres.conf<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Name=gpu
Type=NVlink_A100_40GB File=/dev/nvidia0 CPUs=0-15<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Name=gpu
Type=NVlink_A100_40GB File=/dev/nvidia1 CPUs=16-31<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Name=gpu
Type=NVlink_A100_40GB File=/dev/nvidia2 CPUs=32-47<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Name=gpu
Type=NVlink_A100_40GB File=/dev/nvidia3 CPUs=48-63<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">And for test, we submit
simple job batch like:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#!/bin/bash<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#SBATCH --job-name=test<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#SBATCH --partition=a100<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#SBATCH --nodes=1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#SBATCH --ntasks=6<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#SBATCH --gres=gpu:1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">#SBATCH
--reservation="gpu test"<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">hostname<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">nvidia-smi<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">echo end<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Then in the out file the
nvidia-smi showed all 4 gpu cards. But we expect to see only
1 allocated gpu card.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Official document of
slurm said it will set <b>CUDA_VISIBLE_DEVICES </b>env var
to restrict the gpu card available to user. But we didn’t
find such variable exists in job environment. We only
confirmed it do exist in prolog script environment by adding
debug command “echo $CUDA_VISIBLE_DEVICES” to slurm prolog
script.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">So how do slurm
co-operate with nvidia tools to make job user only see its
allocated gpu card? What is the requirement on nvidia gpu
drivers, CUDA toolkit or any other part to help slurm
correctly restrict the gpu usage?<o:p></o:p></span></p>
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