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author | Jordan Henderson <jhenderson@hdfgroup.org> | 2018-07-31 18:42:19 (GMT) |
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committer | Jordan Henderson <jhenderson@hdfgroup.org> | 2018-08-02 14:47:35 (GMT) |
commit | bccf6e38a4da0a370df82830a3607ae169fcd0cc (patch) | |
tree | de7123458455a9b9c2fe05c172eb9ec7114a6de4 /CMakeLists.txt | |
parent | 7a4025f25916c241289ec0b97baad4c9c29241aa (diff) | |
download | hdf5-bccf6e38a4da0a370df82830a3607ae169fcd0cc.zip hdf5-bccf6e38a4da0a370df82830a3607ae169fcd0cc.tar.gz hdf5-bccf6e38a4da0a370df82830a3607ae169fcd0cc.tar.bz2 |
Add Autotools and CMake checks for big I/O MPI-3 functions
Diffstat (limited to 'CMakeLists.txt')
-rw-r--r-- | CMakeLists.txt | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index e4b3990..cd69fb2 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -569,6 +569,16 @@ if (HDF5_ENABLE_PARALLEL) Parallel writes of filtered data will be disabled.") set (PARALLEL_FILTERED_WRITES OFF) endif () + + # Used by big I/O feature + set (LARGE_PARALLEL_IO ON) + CHECK_SYMBOL_EXISTS (MPI_Get_elements_x "${MPI_C_INCLUDE_DIRS}/mpi.h" H5_HAVE_MPI_Get_elements_x) + CHECK_SYMBOL_EXISTS (MPI_Type_size_x "${MPI_C_INCLUDE_DIRS}/mpi.h" H5_HAVE_MPI_Type_size_x) + if (NOT H5_HAVE_MPI_Get_elements_x OR NOT H5_HAVE_MPI_Type_size_x) + message (WARNING "The MPI_Get_elements_x and/or MPI_Type_size_x functions could not be located. + Reading/Writing >2GB of data in a single parallel I/O operation will be disabled.") + set (LARGE_PARALLEL_IO OFF) + endif () else () message (STATUS "Parallel libraries not found") endif () |