Retrieves the value associated with a key


#include "mpi.h"
int MPI_Info_get(MPI_Info info, char *key, int valuelen, char *value, int *flag)

Input Parameters

info info object (handle)
key key (string)
valuelen length of value argument (integer)

Output Parameters

value value (string)
flag true if key defined, false if not (boolean)

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.