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Stress test with MPI - multithreading + MPI #6

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holke opened this issue Mar 15, 2021 · 1 comment

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holke commented Mar 15, 2021

The stress test possibly uses multiple pthreads. MPI collectives are possibly not correctly matched. Not sure if this is fixable...

One idea would be to use an own communicator for all threads, but I don't know if this is possible...

Collaborator Author

holke commented Mar 15, 2021

Might using MPI_Init_thread help here?
Just guessing, we need to investigate.

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