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MPI 4.1 - mpif.h is deprecated #12190

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hppritcha opened this issue Dec 21, 2023 · 2 comments · May be fixed by #13123
Open

MPI 4.1 - mpif.h is deprecated #12190

hppritcha opened this issue Dec 21, 2023 · 2 comments · May be fixed by #13123
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@devreal
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MPI 4.1

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@hppritcha
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not sure how we would like to handle this but see
MPI Forum issue mpi-forum/mpi-issues#561
item 6 in Section B1.2 of the MPI 4.1 standard
@devreal
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devreal commented Dec 21, 2023

We could just place a preprocessor #warning in the header.

@devreal devreal self-assigned this Jan 4, 2024
@jeffhammond
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There is no standard Fortran preprocessor and whether the non-standard variants are enabled usually depends on the file suffix (.F/F90 are preprocessed, .f/f90 are not). If you add #warning, you'll break the build in some cases.

What you could do is add a check in the compiler wrapper scripts to see if mpif.h is included and warn based on that.

@devreal devreal linked a pull request Mar 5, 2025 that will close this issue
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MPI 4.1
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MPI 4.1 compliance
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Mark mpif.h as deprecated devreal/ompi
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@jeffhammond @hppritcha @devreal