1#include <mpi.h>
2int MPI_File_open(MPI_Comm comm, const char *filename,
3 int amode, MPI_Info info,
4 MPI_File *fh)
5 //MPI_File_open opens the file identified by the filename filename on all
6 //processes in the comm communicator group.
7 //MPI_File_open is a collective routine;
8 //all processes must provide the same value for amode,
9 //and all processes must provide filenames that reference the same file
10 //which are textually identical