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Correctly handle MPI_UNSIGNED_LONG. #10277

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merged 1 commit into from
Apr 14, 2022
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@bosilca bosilca commented Apr 14, 2022

We incorrectly reference the internal long datatype with the
MPI_UNSIGNED_LONG datatype. Thanks to Kendra Long for finding
and analyzing the issue, as well as for the proposed fix.

Fixes #10276.

We incorrectly reference the internal long datatype with the
MPI_UNSIGNED_LONG datatype. Thanks to Kendra Long for finding
and analyzing the issue, as well as for the proposed fix.

Signed-off-by: George Bosilca <[email protected]>
@awlauria awlauria added the NEWS label Apr 14, 2022
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@awlauria awlauria merged commit 45a7445 into open-mpi:main Apr 14, 2022
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Incorrect behavior with MPI_Allreduce + MPI_MAX for unsigned long datatype
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