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/*@@
@file Counter.c
@date Mon May 20 09:52:33 2002
@author Ian Hawke
@desc
Routines setting and altering the loop counter.
@enddesc
@version $Header$
@@*/
#include "cctk.h"
#include "cctk_Arguments.h"
#include "cctk_Parameters.h"
/* #include "carpet.h" */
static const char *rcsid = "$Header$";
CCTK_FILEVERSION(CactusBase_MoL_Counter_c);
/********************************************************************
********************* Local Data Types ***********************
********************************************************************/
/********************************************************************
********************* Local Routine Prototypes *********************
********************************************************************/
/********************************************************************
***************** Scheduled Routine Prototypes *********************
********************************************************************/
void MoL_SetCounter(CCTK_ARGUMENTS);
void MoL_DecrementCounter(CCTK_ARGUMENTS);
/********************************************************************
********************* Other Routine Prototypes *********************
********************************************************************/
/********************************************************************
********************* Local Data *****************************
********************************************************************/
/********************************************************************
********************* External Routines **********************
********************************************************************/
/*@@
@routine MoL_SetCounter
@date Mon May 20 09:54:39 2002
@author Ian Hawke
@desc
Initially set the counter to the number of intermediate steps.
@enddesc
@calls
@calledby
@history
@endhistory
@@*/
void MoL_SetCounter(CCTK_ARGUMENTS)
{
DECLARE_CCTK_ARGUMENTS;
DECLARE_CCTK_PARAMETERS;
*MoL_Intermediate_Step = MoL_Intermediate_Steps;
// Always indicate execution of slow steps.
// If multirate methods are used, they are set to zero
// for certain substeps.
// In any case, outside the MoL loop, these scalars are guaranteed to be 1
*MoL_SlowStep = 1;
*MoL_SlowPostStep = 1;
/* #ifdef HAVE_CARPET */
if ((*MoL_Intermediate_Step))
{
/* Disable prolongating during the iterations */
/* CarpetEnableProlongating (0); */
if (disable_prolongation)
{
if (CCTK_IsFunctionAliased("EnableProlongating"))
{
EnableProlongating(0);
}
else
{
CCTK_WARN(4, "Cannot disable prolongation as function"
" \"EnableProlongating\" is not provided by any thorn!");
}
}
}
/* #endif */
}
/*@@
@routine MoL_DecrementCounter
@date Mon May 20 09:55:13 2002
@author Ian Hawke
@desc
During the loop decrement the counter
@enddesc
@calls
@calledby
@history
@endhistory
@@*/
void MoL_DecrementCounter(CCTK_ARGUMENTS)
{
DECLARE_CCTK_ARGUMENTS;
DECLARE_CCTK_PARAMETERS;
(*MoL_Intermediate_Step) --;
if (CCTK_EQUALS(ODE_Method, "RK2-MR-2:1"))
{
switch (MoL_Intermediate_Steps - *MoL_Intermediate_Step)
{
case 2:
case 4:
if (*MoL_SlowStep)
*MoL_SlowPostStep = 1;
else
*MoL_SlowPostStep = 0;
// don't do slow step
*MoL_SlowStep = 0;
break;
default:
if (!(*MoL_SlowStep))
*MoL_SlowPostStep = 0;
else
*MoL_SlowPostStep = 1;
// do a slow step!
*MoL_SlowStep = 1;
}
}
if (CCTK_EQUALS(ODE_Method, "RK4-MR-2:1"))
{
switch (MoL_Intermediate_Steps - *MoL_Intermediate_Step)
{
case 2:
case 4:
case 7:
case 9:
// don't do slow step
*MoL_SlowStep = 0;
break;
default:
// do a slow step!
*MoL_SlowStep = 1;
}
}
if (CCTK_EQUALS(ODE_Method, "RK4-RK2"))
{
switch (MoL_Intermediate_Steps - *MoL_Intermediate_Step)
{
case 0:
// do a slow step!
*MoL_SlowStep = 1;
// don't sync!
*MoL_SlowPostStep = 0;
break;
case 1:
case 2:
// don't do slow step
*MoL_SlowStep = 0;
*MoL_SlowPostStep = 0;
break;
case 3:
// do a slow step!
*MoL_SlowStep = 1;
// sync!
*MoL_SlowPostStep = 1;
}
}
/* #ifdef HAVE_CARPET */
if (! (*MoL_Intermediate_Step))
{
/* Re-enable prolongating before the final PostStep */
/* CarpetEnableProlongating (1); */
if (disable_prolongation)
{
if (CCTK_IsFunctionAliased("EnableProlongating"))
{
EnableProlongating(1);
}
else
{
CCTK_WARN(4, "Cannot enable prolongation as function"
" \"EnableProlongating\" is not provided by any thorn!");
}
}
}
/* #endif */
}
/********************************************************************
********************* Local Routines *************************
********************************************************************/
|
