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/*@@
@file CactusDefaultEvolve.c
@date Thu Oct 8 17:28:46 1998
@author Tom Goodale
@desc
Default cactus evolution stuff.
@enddesc
@version $Id$
@@*/
/* #define DEBUG_CCTK 1 */
#include <stdio.h>
#include <stdlib.h>
#include "cctk_Flesh.h"
#include "cctk_Parameters.h"
#include "cctk_Groups.h"
#include "cctk_WarnLevel.h"
#include "cctk_Termination.h"
#include "cctk_Main.h"
#include "cctk_Misc.h"
#include "cctk_IO.h"
#ifdef HAVE_TIME_GETTIMEOFDAY
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <unistd.h>
#endif
static const char *rcsid="$Header$";
CCTK_FILEVERSION(main_CactusDefaultEvolve_c);
/* Define some macros for convenience. */
#define TERMINATION_RAISED_BRDCAST 4
#define ForallConvLevels(iteration, conv_level) \
{ \
int factor = 1; \
for (conv_level = 0; conv_level < config->nGHs; conv_level++) \
{ \
if (iteration % factor == 0) \
{
#define EndForallConvLevels \
} \
factor *= 2; \
} \
}
int cactus_terminate;
/********************************************************************
********************* Local Data *****************************
********************************************************************/
#if 0
static int cactus_terminate_global = 0;
#endif
/********************************************************************
********************* Local Routine Prototypes *********************
********************************************************************/
static int DoneMainLoop (const cGH *GH, CCTK_REAL cctk_time, int iteration);
static void StepGH (cGH *GH);
/********************************************************************
********************* External Routines **********************
********************************************************************/
int CactusDefaultEvolve (tFleshConfig *config);
/********************************************************************
********************* Local Routines *************************
********************************************************************/
/*@@
@routine CactusDefaultEvolve
@date Thu Oct 8 17:30:15 1998
@author Tom Goodale
@desc
The default cactus evolution routine.
@enddesc
@calls CCTK_Traverse
CCTK_OutputGH
DoneMainLoop
StepGH
@history
@hdate Fri May 12 2000
@hauthor Thomas Radke
@hdesc Moved evolution loop termination check into DoneMainLoop()
@endhistory
@var config
@vdesc pointer to flesh configuration structure
@vtype tFleshConfig *
@vio in
@endvar
@returntype int
@returndesc
always returns 0
@endreturndesc
@@*/
int CactusDefaultEvolve (tFleshConfig *config)
{
int var;
unsigned int convergence_level, iteration;
#if 0
CactusStartTimer (config->timer[OUTPUT]);
#endif
/*** Call OUTPUT for this GH (this routine ***/
/*** checks if output is necessary) and makes ***/
/*** a Traverse with CCTK_ANALYSIS ***/
iteration = CCTK_MainLoopIndex ();
ForallConvLevels (iteration, convergence_level)
{
CCTK_Traverse (config->GH[convergence_level], "CCTK_ANALYSIS");
CCTK_OutputGH (config->GH[convergence_level]);
}
EndForallConvLevels;
#if 0
CactusStopTimer (config->timer[OUTPUT]);
CactusStartTimer (config->timer[EVOLUTION]);
#endif
while (! DoneMainLoop (config->GH[0], config->GH[0]->cctk_time, iteration))
{
if (iteration == 0)
{
/* Can only use CactusDefaultEvolve with one timelevel */
for (var = CCTK_NumVars () - 1; var >= 0; var--)
{
if (CCTK_MaxTimeLevelsVI (var) > 1)
{
CCTK_VWarn (0,__LINE__,__FILE__,"Cactus",
"Variable '%s' has multiple timelevels, default Cactus "
"evolve routine cannot rotate",
CCTK_VarName (var));
}
}
}
/* HERE ROTATE TIMELEVELS FOR ALL CONVERGENCE LEVELS */
iteration = CCTK_SetMainLoopIndex (++iteration);
/* Step each convergence level */
ForallConvLevels (CCTK_MainLoopIndex (), convergence_level)
{
StepGH (config->GH[convergence_level]);
/*
CCTK_InfoOutput (config->GH[convergence_level], convergence_level);
*/
}
EndForallConvLevels;
/* Dump out checkpoint data on all levels */
ForallConvLevels (iteration, convergence_level)
{
CCTK_Traverse (config->GH[convergence_level], "CCTK_CHECKPOINT");
}
EndForallConvLevels;
/* Output perhaps */
#if 0
CactusStartTimer (config->timer[OUTPUT]);
#endif
/*** Call OUTPUT for this GH (this routine ***/
/*** checks if output is necessary) and makes ***/
/*** an Traverse with CCTK_ANALYSIS ***/
ForallConvLevels (iteration, convergence_level)
{
CCTK_Traverse (config->GH[convergence_level], "CCTK_ANALYSIS");
CCTK_OutputGH (config->GH[convergence_level]);
}
EndForallConvLevels;
#if 0
CactusStopTimer (config->timer[OUTPUT]);
#endif
#if 0
ConvergenceReport (config->GH, iteration);
TerminationStepper (config->GH[0]);
#endif
/* Termination has been raised and broadcasted, exit loop*/
if (cactus_terminate == TERMINATION_RAISED_BRDCAST)
{
break;
}
} /*** END OF MAIN ITERATION LOOP ***/
#if 0
CactusStopTimer (config->timer[EVOLUTION]);
#endif
return (0);
}
/*@@
@routine DoneMainLoop
@date Fri May 12 2000
@author Thomas Radke
@desc
Check the termination conditions for the evolution loop
@enddesc
@calls CCTK_TerminationReached
@history
@hdate Thu 6 Nov 2002
@hauthor Thomas Radke
@hdesc Added max_runtime condition test
@endhistory
@var GH
@vdesc pointer to CCTK grid hierarchy
@vtype const cGH *
@vio in
@endvar
@var simulation_time
@vdesc current physical simulation time
@vtype CCTK_REAL
@vio in
@endvar
@var iteration
@vdesc current iteration
@vtype int
@vio in
@endvar
@returntype int
@returndesc
true (1) or false (0) for done/not done with main loop
@endreturndesc
@@*/
static int DoneMainLoop (const cGH *GH, CCTK_REAL simulation_time,int iteration)
{
int max_iteration_reached, max_simulation_time_reached, max_runtime_reached;
int retval;
#ifdef HAVE_TIME_GETTIMEOFDAY
struct timeval runtime;
static struct timeval starttime = {0, 0};
#endif
DECLARE_CCTK_PARAMETERS
#ifdef HAVE_TIME_GETTIMEOFDAY
/* on the first time through, get the start time */
if (starttime.tv_sec == 0 && starttime.tv_usec == 0)
{
gettimeofday (&starttime, NULL);
}
#endif
retval = terminate_next || CCTK_TerminationReached (GH);
if (! retval && ! CCTK_Equals (terminate, "never"))
{
max_iteration_reached = iteration >= cctk_itlast;
if (cctk_initial_time < cctk_final_time)
{
max_simulation_time_reached = simulation_time >= cctk_final_time;
}
else
{
max_simulation_time_reached = simulation_time <= cctk_final_time;
}
max_runtime_reached = 0;
#ifdef HAVE_TIME_GETTIMEOFDAY
if (max_runtime > 0)
{
/* get the elapsed runtime in minutes and compare with max_runtime */
gettimeofday (&runtime, NULL);
runtime.tv_sec -= starttime.tv_sec;
max_runtime_reached = ((CCTK_REAL) runtime.tv_sec / 60.0) >= max_runtime;
}
#endif
if (CCTK_Equals (terminate, "iteration"))
{
retval = max_iteration_reached;
}
else if (CCTK_Equals (terminate, "time"))
{
retval = max_simulation_time_reached;
}
else if (CCTK_Equals (terminate, "runtime"))
{
retval = max_runtime_reached;
}
else if (CCTK_Equals (terminate, "any"))
{
retval = max_iteration_reached || max_simulation_time_reached ||
max_runtime_reached;
}
else if (CCTK_Equals (terminate, "all"))
{
retval = max_iteration_reached && max_simulation_time_reached &&
max_runtime_reached;
}
/* the following two conditions are deprecated in BETA14 */
else if (CCTK_Equals (terminate, "either"))
{
retval = max_iteration_reached || max_simulation_time_reached;
}
else /* if (CCTK_Equals (terminate, "both")) */
{
retval = max_iteration_reached && max_simulation_time_reached;
}
}
return (retval);
}
/*@@
@routine StepGH
@date Fri Aug 14 12:39:49 1998
@author Gerd Lanfermann
@desc
The full set of routines used to execute all schedule points
in the main iteration loop. Makes calls to the individual
routines for each schedule point.
@enddesc
@calls CCTK_Traverse
@var GH
@vdesc pointer to CCTK grid hierachy
@vtype cGH *
@vio in
@endvar
@@*/
static void StepGH (cGH *GH)
{
GH->cctk_time = GH->cctk_time + GH->cctk_delta_time;
GH->cctk_iteration++;
CCTK_Traverse (GH, "CCTK_PRESTEP");
CCTK_Traverse (GH, "CCTK_EVOL");
CCTK_Traverse (GH, "CCTK_POSTSTEP");
}
#if 0
/*@@
@routine TerminationStepper
@date Fri Aug 14 13:07:11 1998
@author Gerd Lanfermann
@desc
catctus_terminate is a global variable with these values:
TERMINATION_NOT_RAISED : not signaled yet (cactus_initial.c)
TERMINATION_RAISED_LOCAL : signaled on one PE, not reduced
(MPI_LOR) to all PEs yet (main.c)
TERMINATION_RAISED_BRDCAST: reduced -> can now be used to
terminate (chkpnt_terminate.c)
by the scheduler
the raised termiantion signal is caught on 1 PE only and has to
be recduced on all PEs before a termination sequenced can be
launched (I like that)
@enddesc
@calls CCTK_Traverse
@@*/
static void TerminationStepper (cGH *GH)
{
cactus_terminate_global = cactus_terminate;
#ifdef CCTK_MPI
MPI_Allreduce (&cactus_terminate, &cactus_terminate_global, 1, MPI_INT,
MPI_LOR, MPI_COMM_WORLD);
#endif
if (cactus_terminate_global)
{
cactus_terminate = TERMINATION_RAISED_BRDCAST;
printf ("RECEIVED GLOBAL TERMINATION SIGNAL\n");
}
CCTK_Traverse (GH, "CCTK_TERMINATE");
}
#endif
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