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In our taskprolog file we have something like</div>
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#!/bin/sh
<div>echo export SCRATCHDIR=/scratch/${SLURM_JOBID}</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> slurm-users <slurm-users-bounces@lists.schedmd.com> on behalf of Herc Silverstein <herc.silverstein@schrodinger.com><br>
<b>Sent:</b> Friday, February 12, 2021 3:12 PM<br>
<b>To:</b> slurm-users@schedmd.com <slurm-users@schedmd.com><br>
<b>Subject:</b> [slurm-users] prolog not passing env var to job</font>
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<p>Hi,</p>
<p>I have a prolog script that is being run via the slurm.conf Prolog= setting. I've verified that it's being executed on the compute node. My problem is that I cannot get environment variables that I set in this prolog to be set/seen in the job. For example
the prolog:<br>
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<p>#!/bin/bash<br>
</p>
<p>...<br>
</p>
<p>export CUDA_MPS_PIPE_DIRECTORY=blah</p>
<p>...<br>
</p>
<p>is not part of the job's env vars. Someone had suggested that a "print" statement needs to be used. So I tried:</p>
<p>print export CUDA_MPS_PIPE_DIRECTORY=blah</p>
<p>but this doesn't work either. Is this is really just for print-ing as its name implies? Or is that how one actually has to do it and somehow the syntax I'm using isn't quite right?</p>
<p>The documentation says:</p>
<p><i>The task prolog is executed with the same environment as the user tasks to be initiated. The standard output of that program is read and processed as follows:</i></p>
<p><i><span class="x_commandline">export name=value</span></i><i> sets an environment variable for the user task</i><i><br>
</i><i><span class="x_commandline">unset name</span></i><i> clears an environment variable from the user task</i><i><br>
</i><i><span class="x_commandline">print ...</span></i><i> writes to the task's standard output.</i><i><br>
</i><i>The above functionality is limited to the task prolog script.</i></p>
<p>Basically, I'd like to know how to get an arbitrary environment variable passed on to the job via the prolog.<br>
</p>
<p>We are using slurm 20.02.5 on CentOS 7.</p>
<p>Thanks,</p>
<p>Herc<br>
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