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/*@@
@file ProcessEnvironment.c
@date Fri Feb 26 11:20:15 1999
@author Tom Goodale
@desc
Checks the environment for various settings, and acts on them.
@enddesc
@@*/
#include <stdio.h>
#include <stdlib.h>
#include "cctk.h"
#ifdef MPI
#include "mpi.h"
#endif
#ifdef MPI
#define CACTUS_MPI_ERROR(xf) do {int errcode; \
if((errcode = xf) != MPI_SUCCESS) \
{ \
char mpi_error_string[MPI_MAX_ERROR_STRING+1]; \
int resultlen; \
MPI_Error_string(errcode, mpi_error_string, &resultlen);\
fprintf(stderr, "MPI Call %s returned error code %d (%s)\n", \
#xf, errcode, mpi_error_string); \
fprintf(stderr, "At line %d of file %s\n", \
__LINE__, __FILE__); \
} \
} while (0)
#endif
#include "cctk_Flesh.h"
static char *rcsid = "$Header$";
#ifdef MPI
char MPI_Active = 0;
#endif
int ProcessEnvironment(int *argc, char ***argv,tFleshConfig *ConfigData)
{
/* Check if MPI compiled in but choosing not to use MPI. */
#ifdef MPI
if(!getenv("CACTUS_NOMPI"))
{
MPI_Active = 1;
CACTUS_MPI_ERROR(MPI_Init(argc, argv));
}
#endif
return 0;
}
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