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<div class="elementToProof"><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">Unfortunately, the number of processes for each test is hardcoded in the testlist files.
There is no mechanism for filtering or dynamically modifying them. You could either maintain a custom patch to modify the testlist, or have a script applying a separate xfail list. An example of such xfail list that we used in our internal testing is in test/mpi/maint/jenkins/xfail.conf.
If the custom patch solution won't work in your situation, please open an github issue describing your use case, and we can discuss to add a filtering option to the runtests script.<br>
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<div class="elementToProof"><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">Hui<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Max R. Dechantsreiter via discuss <discuss@mpich.org><br>
<b>Sent:</b> Thursday, January 12, 2023 9:58 AM<br>
<b>To:</b> discuss@mpich.org <discuss@mpich.org><br>
<b>Cc:</b> Max R. Dechantsreiter <max@performancejones.com><br>
<b>Subject:</b> [mpich-discuss] MPICH Test Suite - limit number of processes</font>
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<div class="PlainText">I would like to limit the number of processes used by the<br>
MPICH Test Suite, which I run by "make testing" after<br>
building MPICH.<br>
<br>
I tried<br>
<br>
export MPITEST_PPNMAX=<n> # The maximum number of processes per node.<br>
<br>
but this had no apparent effect: some tests still ran<br>
using more than 4 processes, when I replaced <n> by 4.<br>
How could I restrict these tests to run with maximum 4<br>
processes, for example?<br>
<br>
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