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MPI_HOST: deprecate for MPI 4.1 #13360

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Merged
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Aug 12, 2025
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MPI_HOST: deprecate for MPI 4.1 #13360

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2 changes: 2 additions & 0 deletions docs/man-openmpi/man3/MPI_Comm_set_attr.3.rst
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Expand Up @@ -55,6 +55,8 @@ in an integer.
If an attribute is already present, the delete function (specified when
the corresponding keyval was created) will be called.

Note that the ``MPI_HOST`` attribute is *deprecated* as of MPI-4.1.


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2 changes: 1 addition & 1 deletion ompi/include/mpi.h.in
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Expand Up @@ -652,7 +652,7 @@ typedef MPI_Win_errhandler_function MPI_Win_errhandler_fn
enum {
/* MPI-1 */
MPI_TAG_UB,
MPI_HOST,
MPI_HOST __mpi_interface_deprecated_in_mpi41__("MPI_HOST is deprecated since MPI 4.1"),
MPI_IO,
MPI_WTIME_IS_GLOBAL,

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