NAME¶

MPI_File_read - Read using individual file pointer

SYNOPSIS¶

#include "mpi.h"
int MPI_File_read(MPI_File fh, void *buf, int count, 


                  MPI_Datatype datatype, MPI_Status *status)

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)

status

- status object (Status)

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', 'MPI_File') are of type 'INTEGER' in Fortran.