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Handle Fortran MPI_IN_PLACE #25

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wangvsa opened this issue Aug 24, 2023 · 0 comments
Open

Handle Fortran MPI_IN_PLACE #25

wangvsa opened this issue Aug 24, 2023 · 0 comments

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@wangvsa
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wangvsa commented Aug 24, 2023 •
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MPI_IN_PLACE can be used as send buffers. However, Fortran and C may have different internal values for MPI_IN_PLACE, so in our C implementations we are not able to verify if the buffer is MPI_IN_PLACE when they were invoked by Fortran wrappers.

Similar question here: https://community.intel.com/t5/Intel-oneAPI-HPC-Toolkit/mpiifort-MPI-IN-PLACE-vs-mpiicc/td-p/825968

Also, there is no f2c/c2f calls for MPI_IN_PLACE.
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