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Test scalapack/*: restrict all scalapack tests to less than 10 mpi ranks #15475

Merged
merged 1 commit into from
Jun 25, 2023
Merged

Test scalapack/*: restrict all scalapack tests to less than 10 mpi ranks #15475

merged 1 commit into from
Jun 25, 2023

Commits on Jun 25, 2023

  1. Test scalapack/*: restrict all scalapack tests to less than 10 mpi ranks 

    Let us restrict the maximal concurrency of scalapack tests to less than
10 MPI ranks:

 - The purpose of these tests is to test our interfaces to scalapack and
   not whether scalapack functions properly for high(er) MPI
   concurrency. As such testing a few variants with a low number of MPI
   ranks is enough.

 - This cuts down the number of tests in our testsuite that have a
   concurrency of 10 or more from around 225 to around 190.

   The issue with these tests is the fact that we have to block off
   parallel slots in the ctest run equal to the number of MPI ranks.
   Meaning the more tests we have that have a high number of MPI ranks
   the less optimal the scheduling in ctest.
    @tamiko
    tamiko committed Jun 25, 2023
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