MPI_File_get_group - Returns the group of processes that opened the file |
#include "mpi.h" int MPI_File_get_group(MPI_File fh, MPI_Group *group) |
fh |
- file handle (handle) |
group |
- group that opened the file (handle) |
All MPI routines in Fortran (except for 'MPI_WTIME' and 'MPI_WTICK') have an additional argument 'ierr' at the end of the argument list. the routine in C. In Fortran, MPI routines are subroutines and are invoked with the 'call' statement. |
All MPI objects (e.g., 'MPI_Datatype', 'MPI_Comm', 'MPI_File') are of type 'INTEGER' in Fortran. |