FUNCTION REMOVED: The C functions H5P_SET_FAPL_MPIPOSIX and H5P_GET_FAPL_MPIPOSIX and the corresponding Fortran subroutines have been removed from the HDF5 Library at Release 1.8.13. They remain available in earlier releases, through HDF5 Release 1.8.12.
All applications used with HDF5 Release 1.8.13 or later and that use MPI I/O should use the functions H5P_SET_FAPL_MPIO and H5P_GET_FAPL_MPIO or the corresponding Fortran subroutines.
While HDF5’s MPI-POSIX driver (H5P_SET_FAPL_MPIPOSIX and H5P_GET_FAPL_MPIPOSIX) once provided performance benefits on some systems, that is no longer the case. HDF5’s MPIO driver (H5P_SET_FAPL_MPIO and H5P_GET_FAPL_MPIO) now provides as good or better performance on all modern systems.