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+! $Header$
+
+#include "cctk.h"
+
+subroutine dissipation_8_4 (var, ni, nj, nk, bb, gsize, delta, epsdis, rhs)
+
+ implicit none
+
+ integer :: ni, nj, nk
+ CCTK_REAL, dimension(ni,nj,nk), intent(in) :: var
+ CCTK_REAL, dimension(ni,nj,nk), intent(inout) :: rhs
+ CCTK_INT, dimension(6), intent(in) :: bb
+ CCTK_INT, dimension(3), intent(in) :: gsize
+ CCTK_REAL, dimension(3), intent(in) :: delta
+ CCTK_REAL, intent(in) :: epsdis
+
+ CCTK_REAL :: zero = 0.0
+ integer, parameter :: wp = kind(zero)
+ integer :: i, j, k
+ CCTK_REAL, dimension(12,8) :: a
+ CCTK_REAL :: idel
+
+ CCTK_INT :: il, ir, jl, jr, kl, kr
+
+ call set_coeff ( a )
+
+! idel = epsdis / ( 256 * delta(1) )
+ idel = epsdis / 256
+
+ if ( bb(1) == 0 ) then
+ il = 1 + gsize(1)
+ else
+ rhs(1,:,:) = rhs(1,:,:) + &
+ ( a(1,1) * var(1,:,:) + a(2,1) * var(2,:,:) + &
+ a(3,1) * var(3,:,:) + a(4,1) * var(4,:,:) + &
+ a(5,1) * var(5,:,:) ) * idel
+ rhs(2,:,:) = rhs(2,:,:) + &
+ ( a(1,2) * var(1,:,:) + a(2,2) * var(2,:,:) + &
+ a(3,2) * var(3,:,:) + a(4,2) * var(4,:,:) + &
+ a(5,2) * var(5,:,:) + a(6,2) * var(6,:,:) ) * idel
+ rhs(3,:,:) = rhs(3,:,:) + &
+ ( a(1,3) * var(1,:,:) + a(2,3) * var(2,:,:) + &
+ a(3,3) * var(3,:,:) + a(4,3) * var(4,:,:) + &
+ a(5,3) * var(5,:,:) + a(6,3) * var(6,:,:) + &
+ a(7,3) * var(7,:,:) ) * idel
+ rhs(4,:,:) = rhs(4,:,:) + &
+ ( a(1,4) * var(1,:,:) + a(2,4) * var(2,:,:) + &
+ a(3,4) * var(3,:,:) + a(4,4) * var(4,:,:) + &
+ a(5,4) * var(5,:,:) + a(6,4) * var(6,:,:) + &
+ a(7,4) * var(7,:,:) + a(8,4) * var(8,:,:) ) * idel
+ rhs(5,:,:) = rhs(5,:,:) + &
+ ( a(1,5) * var(1,:,:) + a(2,5) * var(2,:,:) + &
+ a(3,5) * var(3,:,:) + a(4,5) * var(4,:,:) + &
+ a(5,5) * var(5,:,:) + a(6,5) * var(6,:,:) + &
+ a(7,5) * var(7,:,:) + a(8,5) * var(8,:,:) + &
+ a(9,5) * var(9,:,:) ) * idel
+ rhs(6,:,:) = rhs(6,:,:) + &
+ ( a(2,6) * var(2,:,:) + a(3,6) * var(3,:,:) + &
+ a(4,6) * var(4,:,:) + a(5,6) * var(5,:,:) + &
+ a(6,6) * var(6,:,:) + a(7,6) * var(7,:,:) + &
+ a(8,6) * var(8,:,:) + a(9,6) * var(9,:,:) + &
+ a(10,6) * var(10,:,:) ) * idel
+ rhs(7,:,:) = rhs(7,:,:) + &
+ ( a(3,7) * var(3,:,:) + a(4,7) * var(4,:,:) + &
+ a(5,7) * var(5,:,:) + a(6,7) * var(6,:,:) + &
+ a(7,7) * var(7,:,:) + a(8,7) * var(8,:,:) + &
+ a(9,7) * var(9,:,:) + a(10,7) * var(10,:,:) + &
+ a(11,7) * var(11,:,:) ) * idel
+ rhs(8,:,:) = rhs(8,:,:) + &
+ ( a(4,8) * var(4,:,:) + a(5,8) * var(5,:,:) + &
+ a(6,8) * var(6,:,:) + a(7,8) * var(7,:,:) + &
+ a(8,8) * var(8,:,:) + a(9,8) * var(9,:,:) + &
+ a(10,8) * var(10,:,:) + a(11,8) * var(11,:,:) + &
+ a(12,8) * var(12,:,:) ) * idel
+
+ il = 9
+ end if
+ if ( bb(2) == 0 ) then
+ ir = ni - gsize(1)
+ else
+ rhs(ni-7,:,:) = rhs(ni-7,:,:) + &
+ ( a(4,8) * var(ni-3,:,:) + a(5,8) * var(ni-4,:,:) + &
+ a(6,8) * var(ni-5,:,:) + a(7,8) * var(ni-6,:,:) + &
+ a(8,8) * var(ni-7,:,:) + a(9,8) * var(ni-8,:,:) + &
+ a(10,8) * var(ni-9,:,:) + a(11,8) * var(ni-10,:,:) + &
+ a(12,8) * var(ni-11,:,:) ) * idel
+ rhs(ni-6,:,:) = rhs(ni-6,:,:) + &
+ ( a(3,7) * var(ni-2,:,:) + a(4,7) * var(ni-3,:,:) + &
+ a(5,7) * var(ni-4,:,:) + a(6,7) * var(ni-5,:,:) + &
+ a(7,7) * var(ni-6,:,:) + a(8,7) * var(ni-7,:,:) + &
+ a(9,7) * var(ni-8,:,:) + a(10,7) * var(ni-9,:,:) + &
+ a(11,7) * var(ni-10,:,:) ) * idel
+ rhs(ni-5,:,:) = rhs(ni-5,:,:) + &
+ ( a(2,6) * var(ni-1,:,:) + a(3,6) * var(ni-2,:,:) + &
+ a(4,6) * var(ni-3,:,:) + a(5,6) * var(ni-4,:,:) + &
+ a(6,6) * var(ni-5,:,:) + a(7,6) * var(ni-6,:,:) + &
+ a(8,6) * var(ni-7,:,:) + a(9,6) * var(ni-8,:,:) + &
+ a(10,6) * var(ni-9,:,:) ) * idel
+ rhs(ni-4,:,:) = rhs(ni-4,:,:) + &
+ ( a(1,5) * var(ni,:,:) + a(2,5) * var(ni-1,:,:) + &
+ a(3,5) * var(ni-2,:,:) + a(4,5) * var(ni-3,:,:) + &
+ a(5,5) * var(ni-4,:,:) + a(6,5) * var(ni-5,:,:) + &
+ a(7,5) * var(ni-6,:,:) + a(8,5) * var(ni-7,:,:) + &
+ a(9,5) * var(ni-8,:,:) ) * idel
+ rhs(ni-3,:,:) = rhs(ni-3,:,:) + &
+ ( a(1,4) * var(ni,:,:) + a(2,4) * var(ni-1,:,:) + &
+ a(3,4) * var(ni-2,:,:) + a(4,4) * var(ni-3,:,:) + &
+ a(5,4) * var(ni-4,:,:) + a(6,4) * var(ni-5,:,:) + &
+ a(7,4) * var(ni-6,:,:) + a(8,4) * var(ni-7,:,:) ) * idel
+ rhs(ni-2,:,:) = rhs(ni-2,:,:) + &
+ ( a(1,3) * var(ni,:,:) + a(2,3) * var(ni-1,:,:) + &
+ a(3,3) * var(ni-2,:,:) + a(4,3) * var(ni-3,:,:) + &
+ a(5,3) * var(ni-4,:,:) + a(6,3) * var(ni-5,:,:) + &
+ a(7,3) * var(ni-6,:,:) ) * idel
+ rhs(ni-1,:,:) = rhs(ni-1,:,:) + &
+ ( a(1,2) * var(ni,:,:) + a(2,2) * var(ni-1,:,:) + &
+ a(3,2) * var(ni-2,:,:) + a(4,2) * var(ni-3,:,:) + &
+ a(5,2) * var(ni-4,:,:) + a(6,2) * var(ni-5,:,:) ) * idel
+ rhs(ni,:,:) = rhs(ni,:,:) + &
+ ( a(1,1) * var(ni,:,:) + a(2,1) * var(ni-1,:,:) + &
+ a(3,1) * var(ni-2,:,:) + a(4,1) * var(ni-3,:,:) + &
+ a(5,1) * var(ni-4,:,:) ) * idel
+
+ ir = ni - 8
+ end if
+ rhs(il:ir,:,:) = rhs(il:ir,:,:) + &
+ ( -70.0_wp * var(il:ir,:,:) + &
+ 56.0_wp * ( var(il-1:ir-1,:,:) + &
+ var(il+1:ir+1,:,:) ) - &
+ 28.0_wp * ( var(il-2:ir-2,:,:) + &
+ var(il+2:ir+2,:,:) ) + &
+ 8.0_wp * ( var(il-3:ir-3,:,:) + &
+ var(il+3:ir+3,:,:) ) - &
+ ( var(il-4:ir-4,:,:) + &
+ var(il+4:ir+4,:,:) ) ) * idel
+
+ call set_coeff ( a )
+
+! idel = epsdis / ( 256 * delta(2) )
+ idel = epsdis / 256
+
+ if ( bb(3) == 0 ) then
+ jl = 1 + gsize(2)
+ else
+ rhs(:,1,:) = rhs(:,1,:) + &
+ ( a(1,1) * var(:,1,:) + a(2,1) * var(:,2,:) + &
+ a(3,1) * var(:,3,:) + a(4,1) * var(:,4,:) + &
+ a(5,1) * var(:,5,:) ) * idel
+ rhs(:,2,:) = rhs(:,2,:) + &
+ ( a(1,2) * var(:,1,:) + a(2,2) * var(:,2,:) + &
+ a(3,2) * var(:,3,:) + a(4,2) * var(:,4,:) + &
+ a(5,2) * var(:,5,:) + a(6,2) * var(:,6,:) ) * idel
+ rhs(:,3,:) = rhs(:,3,:) + &
+ ( a(1,3) * var(:,1,:) + a(2,3) * var(:,2,:) + &
+ a(3,3) * var(:,3,:) + a(4,3) * var(:,4,:) + &
+ a(5,3) * var(:,5,:) + a(6,3) * var(:,6,:) + &
+ a(7,3) * var(:,7,:) ) * idel
+ rhs(:,4,:) = rhs(:,4,:) + &
+ ( a(1,4) * var(:,1,:) + a(2,4) * var(:,2,:) + &
+ a(3,4) * var(:,3,:) + a(4,4) * var(:,4,:) + &
+ a(5,4) * var(:,5,:) + a(6,4) * var(:,6,:) + &
+ a(7,4) * var(:,7,:) + a(8,4) * var(:,8,:) ) * idel
+ rhs(:,5,:) = rhs(:,5,:) + &
+ ( a(1,5) * var(:,1,:) + a(2,5) * var(:,2,:) + &
+ a(3,5) * var(:,3,:) + a(4,5) * var(:,4,:) + &
+ a(5,5) * var(:,5,:) + a(6,5) * var(:,6,:) + &
+ a(7,5) * var(:,7,:) + a(8,5) * var(:,8,:) + &
+ a(9,5) * var(:,9,:) ) * idel
+ rhs(:,6,:) = rhs(:,6,:) + &
+ ( a(2,6) * var(:,2,:) + a(3,6) * var(:,3,:) + &
+ a(4,6) * var(:,4,:) + a(5,6) * var(:,5,:) + &
+ a(6,6) * var(:,6,:) + a(7,6) * var(:,7,:) + &
+ a(8,6) * var(:,8,:) + a(9,6) * var(:,9,:) + &
+ a(10,6) * var(:,10,:) ) * idel
+ rhs(:,7,:) = rhs(:,7,:) + &
+ ( a(3,7) * var(:,3,:) + a(4,7) * var(:,4,:) + &
+ a(5,7) * var(:,5,:) + a(6,7) * var(:,6,:) + &
+ a(7,7) * var(:,7,:) + a(8,7) * var(:,8,:) + &
+ a(9,7) * var(:,9,:) + a(10,7) * var(:,10,:) + &
+ a(11,7) * var(:,11,:) ) * idel
+ rhs(:,8,:) = rhs(:,8,:) + &
+ ( a(4,8) * var(:,4,:) + a(5,8) * var(:,5,:) + &
+ a(6,8) * var(:,6,:) + a(7,8) * var(:,7,:) + &
+ a(8,8) * var(:,8,:) + a(9,8) * var(:,9,:) + &
+ a(10,8) * var(:,10,:) + a(11,8) * var(:,11,:) + &
+ a(12,8) * var(:,12,:) ) * idel
+
+ jl = 9
+ end if
+ if ( bb(4) == 0 ) then
+ jr = nj - gsize(2)
+ else
+ rhs(:,nj-7,:) = rhs(:,nj-7,:) + &
+ ( a(4,8) * var(:,nj-3,:) + a(5,8) * var(:,nj-4,:) + &
+ a(6,8) * var(:,nj-5,:) + a(7,8) * var(:,nj-6,:) + &
+ a(8,8) * var(:,nj-7,:) + a(9,8) * var(:,nj-8,:) + &
+ a(10,8) * var(:,nj-9,:) + a(11,8) * var(:,nj-10,:) + &
+ a(12,8) * var(:,nj-11,:) ) * idel
+ rhs(:,nj-6,:) = rhs(:,nj-6,:) + &
+ ( a(3,7) * var(:,nj-2,:) + a(4,7) * var(:,nj-3,:) + &
+ a(5,7) * var(:,nj-4,:) + a(6,7) * var(:,nj-5,:) + &
+ a(7,7) * var(:,nj-6,:) + a(8,7) * var(:,nj-7,:) + &
+ a(9,7) * var(:,nj-8,:) + a(10,7) * var(:,nj-9,:) + &
+ a(11,7) * var(:,nj-10,:) ) * idel
+ rhs(:,nj-5,:) = rhs(:,nj-5,:) + &
+ ( a(2,6) * var(:,nj-1,:) + a(3,6) * var(:,nj-2,:) + &
+ a(4,6) * var(:,nj-3,:) + a(5,6) * var(:,nj-4,:) + &
+ a(6,6) * var(:,nj-5,:) + a(7,6) * var(:,nj-6,:) + &
+ a(8,6) * var(:,nj-7,:) + a(9,6) * var(:,nj-8,:) + &
+ a(10,6) * var(:,nj-9,:) ) * idel
+ rhs(:,nj-4,:) = rhs(:,nj-4,:) + &
+ ( a(1,5) * var(:,nj,:) + a(2,5) * var(:,nj-1,:) + &
+ a(3,5) * var(:,nj-2,:) + a(4,5) * var(:,nj-3,:) + &
+ a(5,5) * var(:,nj-4,:) + a(6,5) * var(:,nj-5,:) + &
+ a(7,5) * var(:,nj-6,:) + a(8,5) * var(:,nj-7,:) + &
+ a(9,5) * var(:,nj-8,:) ) * idel
+ rhs(:,nj-3,:) = rhs(:,nj-3,:) + &
+ ( a(1,4) * var(:,nj,:) + a(2,4) * var(:,nj-1,:) + &
+ a(3,4) * var(:,nj-2,:) + a(4,4) * var(:,nj-3,:) + &
+ a(5,4) * var(:,nj-4,:) + a(6,4) * var(:,nj-5,:) + &
+ a(7,4) * var(:,nj-6,:) + a(8,4) * var(:,nj-7,:) ) * idel
+ rhs(:,nj-2,:) = rhs(:,nj-2,:) + &
+ ( a(1,3) * var(:,nj,:) + a(2,3) * var(:,nj-1,:) + &
+ a(3,3) * var(:,nj-2,:) + a(4,3) * var(:,nj-3,:) + &
+ a(5,3) * var(:,nj-4,:) + a(6,3) * var(:,nj-5,:) + &
+ a(7,3) * var(:,nj-6,:) ) * idel
+ rhs(:,nj-1,:) = rhs(:,nj-1,:) + &
+ ( a(1,2) * var(:,nj,:) + a(2,2) * var(:,nj-1,:) + &
+ a(3,2) * var(:,nj-2,:) + a(4,2) * var(:,nj-3,:) + &
+ a(5,2) * var(:,nj-4,:) + a(6,2) * var(:,nj-5,:) ) * idel
+ rhs(:,nj,:) = rhs(:,nj,:) + &
+ ( a(1,1) * var(:,nj,:) + a(2,1) * var(:,nj-1,:) + &
+ a(3,1) * var(:,nj-2,:) + a(4,1) * var(:,nj-3,:) + &
+ a(5,1) * var(:,nj-4,:) ) * idel
+
+ jr = nj - 8
+ end if
+ rhs(:,jl:jr,:) = rhs(:,jl:jr,:) + &
+ ( -70.0_wp * var(:,jl:jr,:) + &
+ 56.0_wp * ( var(:,jl-1:jr-1,:) + &
+ var(:,jl+1:jr+1,:) ) - &
+ 28.0_wp * ( var(:,jl-2:jr-2,:) + &
+ var(:,jl+2:jr+2,:) ) + &
+ 8.0_wp * ( var(:,jl-3:jr-3,:) + &
+ var(:,jl+3:jr+3,:) ) - &
+ ( var(:,jl-4:jr-4,:) + &
+ var(:,jl+4:jr+4,:) ) ) * idel
+
+ call set_coeff ( a )
+
+! idel = epsdis / ( 256 * delta(3) )
+ idel = epsdis / 256
+
+ if ( bb(5) == 0 ) then
+ kl = 1 + gsize(3)
+ else
+ rhs(:,:,1) = rhs(:,:,1) + &
+ ( a(1,1) * var(:,:,1) + a(2,1) * var(:,:,2) + &
+ a(3,1) * var(:,:,3) + a(4,1) * var(:,:,4) + &
+ a(5,1) * var(:,:,5) ) * idel
+ rhs(:,:,2) = rhs(:,:,2) + &
+ ( a(1,2) * var(:,:,1) + a(2,2) * var(:,:,2) + &
+ a(3,2) * var(:,:,3) + a(4,2) * var(:,:,4) + &
+ a(5,2) * var(:,:,5) + a(6,2) * var(:,:,6) ) * idel
+ rhs(:,:,3) = rhs(:,:,3) + &
+ ( a(1,3) * var(:,:,1) + a(2,3) * var(:,:,2) + &
+ a(3,3) * var(:,:,3) + a(4,3) * var(:,:,4) + &
+ a(5,3) * var(:,:,5) + a(6,3) * var(:,:,6) + &
+ a(7,3) * var(:,:,7) ) * idel
+ rhs(:,:,4) = rhs(:,:,4) + &
+ ( a(1,4) * var(:,:,1) + a(2,4) * var(:,:,2) + &
+ a(3,4) * var(:,:,3) + a(4,4) * var(:,:,4) + &
+ a(5,4) * var(:,:,5) + a(6,4) * var(:,:,6) + &
+ a(7,4) * var(:,:,7) + a(8,4) * var(:,:,8) ) * idel
+ rhs(:,:,5) = rhs(:,:,5) + &
+ ( a(1,5) * var(:,:,1) + a(2,5) * var(:,:,2) + &
+ a(3,5) * var(:,:,3) + a(4,5) * var(:,:,4) + &
+ a(5,5) * var(:,:,5) + a(6,5) * var(:,:,6) + &
+ a(7,5) * var(:,:,7) + a(8,5) * var(:,:,8) + &
+ a(9,5) * var(:,:,9) ) * idel
+ rhs(:,:,6) = rhs(:,:,6) + &
+ ( a(2,6) * var(:,:,2) + a(3,6) * var(:,:,3) + &
+ a(4,6) * var(:,:,4) + a(5,6) * var(:,:,5) + &
+ a(6,6) * var(:,:,6) + a(7,6) * var(:,:,7) + &
+ a(8,6) * var(:,:,8) + a(9,6) * var(:,:,9) + &
+ a(10,6) * var(:,:,10) ) * idel
+ rhs(:,:,7) = rhs(:,:,7) + &
+ ( a(3,7) * var(:,:,3) + a(4,7) * var(:,:,4) + &
+ a(5,7) * var(:,:,5) + a(6,7) * var(:,:,6) + &
+ a(7,7) * var(:,:,7) + a(8,7) * var(:,:,8) + &
+ a(9,7) * var(:,:,9) + a(10,7) * var(:,:,10) + &
+ a(11,7) * var(:,:,11) ) * idel
+ rhs(:,:,8) = rhs(:,:,8) + &
+ ( a(4,8) * var(:,:,4) + a(5,8) * var(:,:,5) + &
+ a(6,8) * var(:,:,6) + a(7,8) * var(:,:,7) + &
+ a(8,8) * var(:,:,8) + a(9,8) * var(:,:,9) + &
+ a(10,8) * var(:,:,10) + a(11,8) * var(:,:,11) + &
+ a(12,8) * var(:,:,12) ) * idel
+
+ kl = 9
+ end if
+ if ( bb(6) == 0 ) then
+ kr = nk - gsize(3)
+ else
+ rhs(:,:,nk-7) = rhs(:,:,nk-7) + &
+ ( a(4,8) * var(:,:,nk-3) + a(5,8) * var(:,:,nk-4) + &
+ a(6,8) * var(:,:,nk-5) + a(7,8) * var(:,:,nk-6) + &
+ a(8,8) * var(:,:,nk-7) + a(9,8) * var(:,:,nk-8) + &
+ a(10,8) * var(:,:,nk-9) + a(11,8) * var(:,:,nk-10) + &
+ a(12,8) * var(:,:,nk-11) ) * idel
+ rhs(:,:,nk-6) = rhs(:,:,nk-6) + &
+ ( a(3,7) * var(:,:,nk-2) + a(4,7) * var(:,:,nk-3) + &
+ a(5,7) * var(:,:,nk-4) + a(6,7) * var(:,:,nk-5) + &
+ a(7,7) * var(:,:,nk-6) + a(8,7) * var(:,:,nk-7) + &
+ a(9,7) * var(:,:,nk-8) + a(10,7) * var(:,:,nk-9) + &
+ a(11,7) * var(:,:,nk-10) ) * idel
+ rhs(:,:,nk-5) = rhs(:,:,nk-5) + &
+ ( a(2,6) * var(:,:,nk-1) + a(3,6) * var(:,:,nk-2) + &
+ a(4,6) * var(:,:,nk-3) + a(5,6) * var(:,:,nk-4) + &
+ a(6,6) * var(:,:,nk-5) + a(7,6) * var(:,:,nk-6) + &
+ a(8,6) * var(:,:,nk-7) + a(9,6) * var(:,:,nk-8) + &
+ a(10,6) * var(:,:,nk-9) ) * idel
+ rhs(:,:,nk-4) = rhs(:,:,nk-4) + &
+ ( a(1,5) * var(:,:,nk) + a(2,5) * var(:,:,nk-1) + &
+ a(3,5) * var(:,:,nk-2) + a(4,5) * var(:,:,nk-3) + &
+ a(5,5) * var(:,:,nk-4) + a(6,5) * var(:,:,nk-5) + &
+ a(7,5) * var(:,:,nk-6) + a(8,5) * var(:,:,nk-7) + &
+ a(9,5) * var(:,:,nk-8) ) * idel
+ rhs(:,:,nk-3) = rhs(:,:,nk-3) + &
+ ( a(1,4) * var(:,:,nk) + a(2,4) * var(:,:,nk-1) + &
+ a(3,4) * var(:,:,nk-2) + a(4,4) * var(:,:,nk-3) + &
+ a(5,4) * var(:,:,nk-4) + a(6,4) * var(:,:,nk-5) + &
+ a(7,4) * var(:,:,nk-6) + a(8,4) * var(:,:,nk-7) ) * idel
+ rhs(:,:,nk-2) = rhs(:,:,nk-2) + &
+ ( a(1,3) * var(:,:,nk) + a(2,3) * var(:,:,nk-1) + &
+ a(3,3) * var(:,:,nk-2) + a(4,3) * var(:,:,nk-3) + &
+ a(5,3) * var(:,:,nk-4) + a(6,3) * var(:,:,nk-5) + &
+ a(7,3) * var(:,:,nk-6) ) * idel
+ rhs(:,:,nk-1) = rhs(:,:,nk-1) + &
+ ( a(1,2) * var(:,:,nk) + a(2,2) * var(:,:,nk-1) + &
+ a(3,2) * var(:,:,nk-2) + a(4,2) * var(:,:,nk-3) + &
+ a(5,2) * var(:,:,nk-4) + a(6,2) * var(:,:,nk-5) ) * idel
+ rhs(:,:,nk) = rhs(:,:,nk) + &
+ ( a(1,1) * var(:,:,nk) + a(2,1) * var(:,:,nk-1) + &
+ a(3,1) * var(:,:,nk-2) + a(4,1) * var(:,:,nk-3) + &
+ a(5,1) * var(:,:,nk-4) ) * idel
+ kr = nk - 8
+ end if
+ rhs(:,:,kl:kr) = rhs(:,:,kl:kr) + &
+ ( -70.0_wp * var(:,:,kl:kr) + &
+ 56.0_wp * ( var(:,:,kl-1:kr-1) + &
+ var(:,:,kl+1:kr+1) ) - &
+ 28.0_wp * ( var(:,:,kl-2:kr-2) + &
+ var(:,:,kl+2:kr+2) ) + &
+ 8.0_wp * ( var(:,:,kl-3:kr-3) + &
+ var(:,:,kl+3:kr+3) ) - &
+ ( var(:,:,kl-4:kr-4) + &
+ var(:,:,kl+4:kr+4) ) ) * idel
+contains
+
+ subroutine set_coeff ( a )
+
+ implicit none
+
+ CCTK_REAL, dimension(12,8), intent(OUT) :: a
+ CCTK_REAL :: zero = 0.0
+ integer, parameter :: wp = kind(zero)
+
+ a(1,1) = -3.3910872088637970174997113084967416241083103770745_wp
+ a(2,1) = 13.564348835455188069998845233986966496433241508298_wp
+ a(3,1) = -20.346523253182782104998267850980449744649862262447_wp
+ a(4,1) = 13.564348835455188069998845233986966496433241508298_wp
+ a(5,1) = -3.3910872088637970174997113084967416241083103770745_wp
+ a(6,1) = 0.0_wp
+ a(7,1) = 0.0_wp
+ a(8,1) = 0.0_wp
+ a(9,1) = 0.0_wp
+ a(10,1) = 0.0_wp
+ a(11,1) = 0.0_wp
+ a(12,1) = 0.0_wp
+ a(1,2) = 2.6217119552210904473646423259312909608627056453179_wp
+ a(2,2) = -11.142275809689634401299729885207986583666498992601_wp
+ a(3,2) = 18.351983686547633131552496281519036726038939517225_wp
+ a(4,2) = -14.419415753715997460505532792622100284744881049248_wp
+ a(5,2) = 5.2434239104421808947292846518625819217254112906357_wp
+ a(6,2) = -0.65542798880527261184116058148282274021567641132947_wp
+ a(7,2) = 0.0_wp
+ a(8,2) = 0.0_wp
+ a(9,2) = 0.0_wp
+ a(10,2) = 0.0_wp
+ a(11,2) = 0.0_wp
+ a(12,2) = 0.0_wp
+ a(1,3) = -23.305235778623380376667790568855064784933288377246_wp
+ a(2,3) = 108.75776696690910842444968932132363566302201242715_wp
+ a(3,3) = -205.86291604450652666056548335821973893357738066567_wp
+ a(4,3) = 201.97871008140262993112085159674389480275516593613_wp
+ a(5,3) = -108.75776696690910842444968932132363566302201242715_wp
+ a(6,3) = 31.073647704831173835557054091806753046577717836328_wp
+ a(7,3) = -3.8842059631038967294446317614758441308222147295410_wp
+ a(8,3) = 0.0_wp
+ a(9,3) = 0.0_wp
+ a(10,3) = 0.0_wp
+ a(11,3) = 0.0_wp
+ a(12,3) = 0.0_wp
+ a(1,4) = 2.2245534287765737751523181243817045070532621097794_wp
+ a(2,4) = -12.235043858271155763337749684099374788792941603787_wp
+ a(3,4) = 28.919194574095459076980135616962158591692407427132_wp
+ a(4,4) = -38.373546646395897621377487645584402746668771393695_wp
+ a(5,4) = 31.143748002872032852132453741343863098745669536912_wp
+ a(6,4) = -15.571874001436016426066226870671931549372834768456_wp
+ a(7,4) = 4.4491068575531475503046362487634090141065242195588_wp
+ a(8,4) = -0.55613835719414344378807953109542612676331552744485_wp
+ a(9,4) = 0.0_wp
+ a(10,4) = 0.0_wp
+ a(11,4) = 0.0_wp
+ a(12,4) = 0.0_wp
+ a(1,5) = -2.4230202953323072711308162536265511957185829658094_wp
+ a(2,5) = 19.384162362658458169046530029012409565748663726475_wp
+ a(3,5) = -67.844568269304603591662855101543433480120323042664_wp
+ a(4,5) = 135.68913653860920718332571020308686696024064608533_wp
+ a(5,5) = -169.61142067326150897915713775385858370030080760666_wp
+ a(6,5) = 135.68913653860920718332571020308686696024064608533_wp
+ a(7,5) = -67.844568269304603591662855101543433480120323042664_wp
+ a(8,5) = 19.384162362658458169046530029012409565748663726475_wp
+ a(9,5) = -2.4230202953323072711308162536265511957185829658094_wp
+ a(10,5) = 0.0_wp
+ a(11,5) = 0.0_wp
+ a(12,5) = 0.0_wp
+ a(1,6) = 0.0_wp
+ a(2,6) = -0.78217600900123184961735065035840034142603567514089_wp
+ a(3,6) = 6.2574080720098547969388052028672027314082854011271_wp
+ a(4,6) = -21.900928252034491789285818210035209559928998903945_wp
+ a(5,6) = 43.801856504068983578571636420070419119857997807890_wp
+ a(6,6) = -54.752320630086229473214545525088023899822497259862_wp
+ a(7,6) = 43.801856504068983578571636420070419119857997807890_wp
+ a(8,6) = -21.900928252034491789285818210035209559928998903945_wp
+ a(9,6) = 6.2574080720098547969388052028672027314082854011271_wp
+ a(10,6) = -0.78217600900123184961735065035840034142603567514089_wp
+ a(11,6) = 0.0_wp
+ a(12,6) = 0.0_wp
+ a(1,7) = 0.0_wp
+ a(2,7) = 0.0_wp
+ a(3,7) = -1.0830767761393601764536458481012280421614377748694_wp
+ a(4,7) = 8.6646142091148814116291667848098243372915021989551_wp
+ a(5,7) = -30.326149731902084940702083746834385180520257696343_wp
+ a(6,7) = 60.652299463804169881404167493668770361040515392685_wp
+ a(7,7) = -75.815374329755212351755209367085962951300644240857_wp
+ a(8,7) = 60.652299463804169881404167493668770361040515392685_wp
+ a(9,7) = -30.326149731902084940702083746834385180520257696343_wp
+ a(10,7) = 8.6646142091148814116291667848098243372915021989551_wp
+ a(11,7) = -1.0830767761393601764536458481012280421614377748694_wp
+ a(12,7) = 0.0_wp
+ a(1,8) = 0.0_wp
+ a(2,8) = 0.0_wp
+ a(3,8) = 0.0_wp
+ a(4,8) = -0.99075245444434671889501396229410272246695863420506_wp
+ a(5,8) = 7.9260196355547737511601116983528217797356690736404_wp
+ a(6,8) = -27.741068724441708129060390944234876229074841757742_wp
+ a(7,8) = 55.482137448883416258120781888469752458149683515483_wp
+ a(8,8) = -69.352671811104270322650977360587190572687104394354_wp
+ a(9,8) = 55.482137448883416258120781888469752458149683515483_wp
+ a(10,8) = -27.741068724441708129060390944234876229074841757742_wp
+ a(11,8) = 7.9260196355547737511601116983528217797356690736404_wp
+ a(12,8) = -0.99075245444434671889501396229410272246695863420506_wp
+
+ end subroutine set_coeff
+end subroutine dissipation_8_4