Add OpenMP thread Nb var to config script + opt. override, Refs #2622

• Checked locally that the variable OMP_NUM_THREADS is set to 1 in all config scripts and CI macros in standard setup+compile
• Checked locally that defining OMP_NUM_THREADS in the env. leads to the value being used for all config scripts and macros instead of 1

Planned reviewer for "advanced OpenMP user" review: @fweig (cannot assign due to our role model)

assigned to @f.uhlig

changed the description

Dear @f.uhlig, @v.friese, @p.-a.loizeau,

you have been identified as code owner of at least one file which was changed with this merge request.

Please check the changes and approve them or request changes.

added CodeOwners label

added Build System label

@p.-a.loizeau,

with the change you fix the number of cores at compile time which is probably something you don't want to do. I would propose to change the scripts such that the variable will only be exported when it is not yet existing.

if [[ -z "${OMP_NUM_THREADS}" ]]; then
  export OMP_NUM_THREADS=@OMP_NUM_THREADS@
fi

added 2 commits

• 31d5721c - 1 commit from branch computing:master
• 9394ab4a - Add OpenMP thread Nb var to config script + opt. override, Refs #2622

Compare with previous version

added 6 commits

• 9394ab4a...07b3661d - 5 commits from branch computing:master
• b27b1160 - Add OpenMP thread Nb var to config script + opt. override, Refs #2622

Compare with previous version

approved this merge request

enabled an automatic merge when the pipeline for b27b1160 succeeds

merged