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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
@version $Header$
@@*/
#include <stdio.h>
#include <stdlib.h>
#include "cctk_Capabilities.h"
#include "cctk_Flesh.h"
#ifdef CCTK_MPI
# include <mpi.h>
#endif
static const char *rcsid = "$Header$";
CCTK_FILEVERSION(main_ProcessEnvironment_c);
/********************************************************************
********************* Local Data Types ***********************
********************************************************************/
/********************************************************************
********************* Local Routine Prototypes *********************
********************************************************************/
/********************************************************************
********************* Other Routine Prototypes *********************
********************************************************************/
int CCTKi_ProcessEnvironment (int *argc, char ***argv,tFleshConfig *ConfigData);
/********************************************************************
********************* Local Data *****************************
********************************************************************/
#ifdef CCTK_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
#ifdef CCTK_MPI
char MPI_Active = 0;
#endif
/********************************************************************
********************* External Routines **********************
********************************************************************/
/*@@
@routine CCTKi_ProcessEnvironment
@date Fri Feb 26 11:20:15 1999
@author Tom Goodale
@desc
@enddesc
@calls
@calledby
@history
@endhistory
@var argc
@vdesc Number of arguments
@vtype int *
@vio inout
@vcomment
@endvar
@var argv
@vdesc Argument list
@vtype char ***
@vio inout
@vcomment
@endvar
@var ConfigData
@vdesc Flesh configuration data
@vtype tFleshConfig
@vio inout
@vcomment
@endvar
@returntype int
@returndesc
0 - success
@endreturndesc
@@*/
int CCTKi_ProcessEnvironment(int *argc, char ***argv, tFleshConfig *ConfigData)
{
/* avoid compiler warnings about unused arguments */
argc = argc;
argv = argv;
ConfigData = ConfigData;
/* Check if MPI compiled in but choosing not to use MPI. */
#ifdef CCTK_MPI
if (!getenv("CACTUS_NOMPI"))
{
MPI_Active = 1;
CACTUS_MPI_ERROR(MPI_Init(argc, argv));
}
#endif
return 0;
}
/********************************************************************
********************* Local Routines *************************
********************************************************************/
|
