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<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">I’m seeing a problem with GPU usage reporting via squeue in the 19.05.3 release.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">I’ve been using a custom script to track GPUs in use, and had been relying on the ‘%b’ field of squeue -o formatting (which now seems to be undocumented) to capture usage requested via --gres
option of sbatch. Unfortunately, besides apparently being deprecated, ‘%b’ does not report usage requested via the new --gpus option.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">I’ve tried several squeue -O option fields, but only ‘tres-alloc’ seems to consistently report GPU usage, independent of which sbatch option was used for the request. The ‘tres-per-node’
field only reports usage requested by --gres, while ‘tres-per-job’ only reports usage requested by the --gpus option. Also, the -O formatting doesn’t put a single space between fields, a problem for longer job names or usernames, and messes up the field
parsing of the output when two fields are run together.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">Our users like to know which partition has the most free GPUs, and right now my script is broken wrt. usage via the --gpus option.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">If there is no other option, I can probably parse the ‘tres-alloc’ field (it has more info than I need), but I’m looking for alternatives, or any information that might indicate the ‘tres-*’
fields are more consistent in the newer (.4 or .5) SLURM releases. <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">BTW, sreport does a bad job of reporting GPU usage as well, in that the GRES/GPU total % for root in the account listing on a given cluster is always less than the % allocated in the utilization
listing, sometime by a substantial amount. The CPU usage is almost always the same in both sreport listings.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">--<o:p></o:p></span></p>
<p class="MsoNormal"><i><span style="font-family:Palatino;color:#538135">Rick Venable</span></i><span style="font-family:Palatino;color:#538135"> <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">NIH/NHLBI/DIR/BBC
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">Lab. of Membrane Biophysics MSC 5690<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">Bldg. 12A Room 3053L<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:Palatino;color:#538135">Bethesda, MD 20892-5690 U.S.A.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;color:#538135"><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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