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MPI_Info_get_nthkey
Langue: en
Version: Mar 18, 2009 (fedora - 05/07/09)
Section: 3 (Bibliothèques de fonctions)
Sommaire
NAME
MPI_Info_get_nthkey - Returns the nth defined key in info.SYNTAX
C Syntax
#include <mpi.h> int MPI_Info_get_nthkey(MPI_Info info, int n, char *key)
Fortran Syntax
INCLUDE 'mpif.h' MPI_INFO_GET_NTHKEY(INFO, N, KEY, IERROR) INTEGER INFO, N, IERROR CHARACTER*(*) KEY
C++ Syntax
#include <mpi.h> void MPI::Info::Get_nthkey(int n, char* key) const
INPUT PARAMETERS
- info
- Info object (handle).
- n
- Key number (integer).
OUTPUT PARAMETERS
- key
- Key (string).
- IERROR
- Fortran only: Error status (integer).
DESCRIPTION
MPI_Info_get_nthkey returns the nth defined key in info. Keys are numbered 0...N - 1 where N is the value returned by MPI_Info_get_nkeys. All keys between 0 and N - 1 are guaranteed to be defined. The number of a given key does not change as long as info is not modified with MPI_Info_set or MPI_Info_delete.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.
SEE ALSO
MPI_Info_getMPI_Info_get_nkeys
MPI_Info_get_valueln
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