MPI_THREAD_MULTIPLE issues in C

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Has anyone ever used MPI_THREAD_MULTIPLE with thread intensive applications? All my applications hang and found that this MPI feature was only lightly tested and doesn't work in all cases. Does anyone have a workaround?

I have implemented a simple example where MPI fails here: Dropbox - manual.c[^]

What I have tried:

I need MPI available to all threads on all nodes, so there isn't really another MPI alternative to MPI_THREAD_MULTIPLE.

Posted 18-Aug-16 15:13pm

Member 12692485

Updated 3-Dec-16 0:37am

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Arthur V. Ratz · Answer 1 · 2016-12-03T00:37:00

Solution 1

Just try another options the way it was explained here: http://mpi-forum.org/docs/mpi-2.0/mpi-20-html/node165.htm

Posted 3-Dec-16 0:37am

Arthur V. Ratz