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Check if MPI is finalized before freeing MPI types - #720
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Add an explicit check to see if MPI is finalized or not before freeing MPI types associated with an I/O decomposition.
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This change provides a better error message to the user instead of the generic error message from the MPI library |
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🟢 Approval recommended
No active review issues are recorded for the change guarding MPI datatype cleanup after MPI finalization.
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What changed in this PR
This PR makes SCORPIO’s I/O decomposition cleanup skip MPI datatype frees
after MPI has been finalized.
Changes:
- Check
MPI_Finalizedbefore callingMPI_Type_free. - Warn when cleanup skips a datatype, advising users to finalize all I/O
systems withPIOc_finalize.
| File | Description |
|---|---|
src/clib/core/spio_iodesc_utils.cpp |
Guard datatype cleanup after MPI finalization and add a resource-cleanup warning. |
Review effort: Balanced
jayeshkrishna
marked this pull request as ready for review
November 12, 2026 18:56
amametjanov
approved these changes
Nov 12, 2026
jayeshkrishna
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that referenced
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Nov 12, 2026
…elop (PR #720) Add an explicit check to see if MPI is finalized or not before freeing MPI types associated with an I/O decomposition. * jayeshkrishna/check_mpi_init_before_type_free: Check if MPI is finalized before freeing MPI types
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Add an explicit check to see if MPI is finalized or not
before freeing MPI types associated with an I/O
decomposition.