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NAME
MPI_Error_string - Returns a string for a given error code.
SYNTAX
C Syntax
#include <mpi.h>
int MPI_Error_string(int errorcode, char *string, int *resultlen)
Fortran Syntax
INCLUDE 'mpif.h'
MPI_ERROR_STRING(ERRORCODE, STRING, RESULTLEN, IERROR)
INTEGER ERRORCODE, RESULTLEN, IERROR
CHARACTER*(*) STRING
C++ Syntax
#include <mpi.h>
void Get_error_string(int errorcode, char* name, int& resultlen)
INPUT PARAMETER
errorcode Error code returned by an MPI routine or an MPI error class.
OUTPUT PARAMETERS
string Text that corresponds to the errorcode.
resultlen Length of string.
IERROR Fortran only: Error status (integer).
DESCRIPTION
Returns the error string associated with an error code or class. The
argument string must represent storage that is at least
MPI_MAX_ERROR_STRING characters long.
The number of characters actually written is returned in the output
argument, resultlen.
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++ func-
tions 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.
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