MPI_File_iread
Nonblocking read using individual file pointer
Synopsis
#ifdef HAVE_MPI_GREQUEST
#include "mpiu_greq.h"
#endif
int MPI_File_iread(MPI_File mpi_fh, void *buf, int count,
MPI_Datatype datatype, MPI_Request *request)
Input Parameters
- fh
- file handle (handle)
- count
- number of elements in buffer (nonnegative integer)
- datatype
- datatype of each buffer element (handle)
Output Parameters
- buf
- initial address of buffer (choice)
- request
- request object (handle)
Notes for Fortran
All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK) have
an additional argument ierr at the end of the argument list. ierr
is an integer and has the same meaning as the return value of 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) are of type INTEGER
in Fortran.
Location:mpi-io/iread.c