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! $Header$
#include "cctk.h"
#include "cctk_Arguments.h"
#include "cctk_Functions.h"
#include "cctk_Parameters.h"
subroutine NoExcision_Smooth (CCTK_ARGUMENTS)
implicit none
DECLARE_CCTK_ARGUMENTS
DECLARE_CCTK_FUNCTIONS
DECLARE_CCTK_PARAMETERS
CCTK_REAL, parameter :: zero=0
CCTK_REAL :: mask (cctk_lsh(1), cctk_lsh(2), cctk_lsh(3))
CCTK_REAL :: cx, cy, cz, radx, rady, radz
integer :: n
integer :: iter
integer :: ierr
do iter = 1, smoothing_iterations
do n = 1, num_regions
cx = centre_x(n)
cy = centre_y(n)
cz = centre_z(n)
if (CCTK_EQUALS(region_shape(n), "sphere")) then
radx = radius(n)
rady = radius(n)
radz = radius(n)
else if (CCTK_EQUALS(region_shape(n), "ellipsoid")) then
radx = radius_x(n)
rady = radius_y(n)
radz = radius_z(n)
else
call CCTK_WARN (0, "internal error")
end if
mask = 1 - sqrt (((x - cx) / radx)**2 + &
& ((y - cy) / rady)**2 + &
& ((z - cz) / radz)**2)
where (mask <= 0)
mask = 0 ! outside
elsewhere (mask >= smoothing_zone_width(n))
mask = 1 ! far inside
elsewhere
mask = mask / smoothing_zone_width(n) ! a bit inside
end where
if (overwrite_geometry(n) /= 0) then
if (conformal_state >= 1) then
call smooth (psi)
end if
if (conformal_state >= 2) then
call smooth (psix)
call smooth (psiy)
call smooth (psiz)
end if
if (conformal_state >= 3) then
call smooth (psixx)
call smooth (psixy)
call smooth (psixz)
call smooth (psiyy)
call smooth (psiyz)
call smooth (psizz)
end if
call smooth (gxx)
call smooth (gxy)
call smooth (gxz)
call smooth (gyy)
call smooth (gyz)
call smooth (gzz)
call smooth (kxx)
call smooth (kxy)
call smooth (kxz)
call smooth (kyy)
call smooth (kyz)
call smooth (kzz)
end if
if (overwrite_lapse(n) /= 0) then
call smooth (alp)
end if
if (overwrite_shift(n) /= 0) then
if (shift_state /= 0) then
call smooth (betax)
call smooth (betay)
call smooth (betaz)
end if
end if
end do
if (overwrite_geometry(n) /= 0) then
if (conformal_state >= 1) then
call CCTK_SyncGroup (ierr, cctkGH, "StaticConformal::confac")
end if
if (conformal_state >= 2) then
call CCTK_SyncGroup (ierr, cctkGH, "StaticConformal::confac_1derivs")
end if
if (conformal_state >= 3) then
call CCTK_SyncGroup (ierr, cctkGH, "StaticConformal::confac_2derivs")
end if
call CCTK_SyncGroup (ierr, cctkGH, "ADMBase::metric")
call CCTK_SyncGroup (ierr, cctkGH, "ADMBase::curv")
end if
if (overwrite_lapse(n) /= 0) then
call CCTK_SyncGroup (ierr, cctkGH, "ADMBase::lapse")
end if
if (overwrite_shift(n) /= 0) then
if (shift_state /= 0) then
call CCTK_SyncGroup (ierr, cctkGH, "ADMBase::shift")
end if
end if
end do
contains
subroutine smooth (val)
CCTK_REAL, intent(inout) :: val(:,:,:)
where (mask > 0)
val = (1 - mask * smoothing_factor) * val &
& + (mask * smoothing_factor / 6) &
& * (+ eoshift(val, +1, dim=1) + eoshift(val, -1, dim=1) &
& + eoshift(val, +1, dim=2) + eoshift(val, -1, dim=2) &
& + eoshift(val, +1, dim=3) + eoshift(val, -1, dim=3))
end where
end subroutine smooth
end subroutine NoExcision_Smooth
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