NAME

MPI_Info_set - Adds a key/value pair to info.

SYNTAX

C Syntax

#include <mpi.h>
int MPI_Info_set(MPI_Info info, char *key, char *value)

Fortran Syntax

USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_INFO_SET(INFO, KEY, VALUE, IERROR)
	INTEGER		INFO, IERROR
	CHARACTER*(*)	KEY, VALUE

Fortran 2008 Syntax

USE mpi_f08
MPI_Info_set(info, key, value, ierror)
	TYPE(MPI_Info), INTENT(IN) :: info
	CHARACTER(LEN=*), INTENT(IN) :: key, value
	INTEGER, OPTIONAL, INTENT(OUT) :: ierror

C++ Syntax

#include <mpi.h>
void MPI::Info::Set(const char* key, const char* value)

INPUT/OUTPUT PARAMETER

info: Info object (handle).

INPUT PARAMETERS

key: Key (string).
value: Value (string).

OUTPUT PARAMETER

IERROR: Fortran only: Error status (integer).

DESCRIPTION

MPI_Info_set adds the (key,value) pair to info and overrides the value if a value for the same key was previously set. The key and value parameters are null-terminated strings in C. In Fortran, leading and trailing spaces in key and value are stripped. If either key or value is larger than the allowed maximums, the error MPI_ERR_INFO_KEY or MPI_ERR_INFO_VALUE is raised, respectively.

ERRORS

Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI::Exception object.

Before the error value is returned, the current MPI error handler is called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.