[mpich-discuss] MPICH Test Suite - limit number of processes

[Gregor Corbin]

Dear Max,


I have a script that recursively walks through the existing teslist 
files and filters them according to various criteria (name, regex of the 
testlist line, contents of associated source code). You can find it in 
my fork of mpich: https://github.com/gcorbin/mpich/ at 
/test/mpi/scorep/generate_filtered_testlist.py


Feel free to use + adapt that if it is helpful for you.


Cheers,

Gregor



On 12.01.23 17:29, Zhou, Hui via discuss wrote:
> 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.
>
> -- 
> Hui
> ------------------------------------------------------------------------
> *From:* Max R. Dechantsreiter via discuss <discuss at mpich.org>
> *Sent:* Thursday, January 12, 2023 9:58 AM
> *To:* discuss at mpich.org <discuss at mpich.org>
> *Cc:* Max R. Dechantsreiter <max at performancejones.com>
> *Subject:* [mpich-discuss] MPICH Test Suite - limit number of processes
> I would like to limit the number of processes used by the
> MPICH Test Suite, which I run by "make testing" after
> building MPICH.
>
> I tried
>
> export MPITEST_PPNMAX=<n> # The maximum number of processes per node.
>
> but this had no apparent effect: some tests still ran
> using more than 4 processes, when I replaced <n> by 4.
> How could I restrict these tests to run with maximum 4
> processes, for example?
>
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