Configure Open MPI shmem defaults on macOS#802
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allnes
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Jun 7, 2026
Open MPI 5 can warn while probing mmap backing files under macOS TMPDIR paths, so default to the POSIX shmem component before MPI_Init unless the user already configured it
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## master #802 +/- ##
==========================================
+ Coverage 91.99% 92.00% +0.01%
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Files 14 14
Lines 462 463 +1
Branches 171 171
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+ Hits 425 426 +1
Misses 5 5
Partials 32 32 ☔ View full report in Codecov by Harness. 🚀 New features to boost your workflow:
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Open MPI 5 can warn while probing mmap backing files under macOS TMPDIR paths, so default to the POSIX shmem component before MPI_Init unless the user already configured it