MPI_Error_string − Returns a string for a given error code.
#include
<mpi.h>
int MPI_Error_string(int errorcode, char
*string, int *resultlen)
INCLUDE
’mpif.h’
MPI_ERROR_STRING(ERRORCODE, STRING, RESULTLEN,
IERROR)
INTEGER |
ERRORCODE, RESULTLEN, IERROR |
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CHARACTER*(*) |
STRING |
#include
<mpi.h>
void Get_error_string(int errorcode, char*
name, int& resultlen)
errorcode |
Error code returned by an MPI routine or an MPI error class. |
string |
Text that corresponds to the errorcode. |
|||
resultlen |
Length of string. |
|||
IERROR |
Fortran only: Error status (integer). |
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.
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.