Give an explicit error message if MPI can't be called from a sub-process #18

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BerengerBerthoul wants to merge 1 commit into master from dev_scheduler_shell

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BerengerBerthoul commented Mar 24, 2025

See #17 . At least OpenMPI 4.0.5 does not allow mpirun to be called from a sub-process.

This PR now gives an explicit error message with the shell scheduler if the MPI implementation can't be called from a sub-process.

Also implement two minor misc improvements :

for the shell and SLURM scheduler, give the absolute path of the error log files
use 3 error classes (to raise usage, environment or internal pytest_parallel errors)


          Shell and SLURM scheduler: give an absolute error log file. Shell: te…

8e9eb46

…st if MPI works with sub-processes. Added exception.py

BerengerBerthoul mentioned this pull request

unknown error with scheduler=shell #17

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