Simplify MPI configuration in CMake #6145
Open
+39
−43
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
To the best of my understanding, hdf5 only needs the C API for MPI (and in particular does not need the C++ binding which are a recurring source of configuration/build problems in practice). Therefore, the
find_package(MPI)call can be modified to only look for the C library, which also simplifies a little bit the error checking (if the find package call succeeds, thenMPI_C_FOUNDis true).