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MPI_Info_set(3) 			     LAM/MPI				  MPI_Info_set(3)

NAME
       MPI_Info_set -  Set a (key, value) pair in an MPI_Info object

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

INPUT PARAMETERS
       key    - null-terminated character string of the index key
       value  - null-terminated character string of the value

INPUT/OUTPUT PARAMETER
       info   - info object (handle)

NOTES FOR FORTRAN
       All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK ) have an additional argu-
       ment 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.

ERRORS
       If an error occurs in an MPI function, the current MPI error handler is called  to  handle
       it.   By default, this error handler aborts the MPI job.  The error handler may be changed
       with MPI_Errhandler_set ; the predefined error handler MPI_ERRORS_RETURN may  be  used  to
       cause  error values to be returned (in C and Fortran; this error handler is less useful in
       with the C++ MPI bindings.   The  predefined  error  handler  MPI::ERRORS_THROW_EXCEPTIONS
       should  be  used in C++ if the error value needs to be recovered).  Note that MPI does not
       guarantee that an MPI program can continue past an error.

       All MPI routines (except MPI_Wtime and MPI_Wtick ) return an error value;  C  routines  as
       the value of the function and Fortran routines in the last argument.  The C++ bindings for
       MPI do not return error values; instead, error values are communicated by throwing  excep-
       tions  of  type	MPI::Exception	(but  not by default).	Exceptions are only thrown if the
       error value is not MPI::SUCCESS
	.

       Note that if the MPI::ERRORS_RETURN handler is set in C++, while MPI functions will return
       upon an error, there will be no way to recover what the actual error value was.
       MPI_SUCCESS
	      - No error; MPI routine completed successfully.
       MPI_ERR_ARG
	      -  Invalid  argument.  Some argument is invalid and is not identified by a specific
	      error class.  This is typically a NULL pointer or other such error.
       MPI_INFO_KEY
	      - This error class is associated with an error code that indicates that a null key,
	      empty key, or key that was longer than MPI_MAX_INFO_KEY characters was passed as an
	      argument to an MPI function where it was not allowed.
       MPI_INFO_NOKEY
	      - This error class is associated with an error code that indicates that a key  that
	      was looked up on an MPI_Info object and was not found.
       MPI_ERR_INTERN
	      - An internal error has been detected.  This is fatal.  Please send a bug report to
	      the LAM mailing list (see http://www.lam-mpi.org/contact.php ).

MORE INFORMATION
       For more information, please see the official MPI Forum web site, which contains the  text
       of both the MPI-1 and MPI-2 standards.  These documents contain detailed information about
       each MPI function (most of which is not duplicated in these man pages).

       http://www.mpi-forum.org/

LOCATION
       infoset.c

LAM/MPI 6.5.8				    11/10/2002				  MPI_Info_set(3)
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