diff options
author | diener <diener@f69c4107-0314-4c4f-9ad4-17e986b73f4a> | 2007-10-16 14:45:23 +0000 |
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committer | diener <diener@f69c4107-0314-4c4f-9ad4-17e986b73f4a> | 2007-10-16 14:45:23 +0000 |
commit | f4cc81a52f102c61b07178b88d4a560b307d928f (patch) | |
tree | ae8d9b3dcbf84f6c2180622f0e7da3661d4fdcd4 /src/Coefficients_4_3_min_err_coeff.F90 | |
parent | bb568eb19331f243f79abc3a5b3e9331959c8773 (diff) |
Moved definitions of coefficients to a single module in order to only have
them in one place. Added routines to return coefficients in all the
missing cases. Also added routines to return 2 derivatives (only 2-1 and
4-2 so far). The routines calculating derivatives for whole grid functions
have not been tested yet, so if you are using them, you will probably want
to hold off on updating until I give the clear signal.
git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/SummationByParts/trunk@85 f69c4107-0314-4c4f-9ad4-17e986b73f4a
Diffstat (limited to 'src/Coefficients_4_3_min_err_coeff.F90')
-rw-r--r-- | src/Coefficients_4_3_min_err_coeff.F90 | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/Coefficients_4_3_min_err_coeff.F90 b/src/Coefficients_4_3_min_err_coeff.F90 new file mode 100644 index 0000000..1b5e728 --- /dev/null +++ b/src/Coefficients_4_3_min_err_coeff.F90 @@ -0,0 +1,80 @@ +#include "cctk.h" +#include "cctk_Functions.h" +#include "cctk_Parameters.h" + +subroutine set_coeff_4_3_opt ( nsize, loc_order, bb, gsize, imin, imax, dd ) + + use All_Coeffs_mod + + implicit none + + DECLARE_CCTK_FUNCTIONS + DECLARE_CCTK_PARAMETERS + + CCTK_INT, intent(IN) :: nsize, loc_order + CCTK_INT, dimension(2), intent(IN) :: bb + CCTK_INT, intent(IN) :: gsize + CCTK_INT, dimension(nsize), intent(OUT) :: imin, imax + CCTK_REAL, dimension(nsize,nsize), intent(OUT) :: dd + + CCTK_REAL, dimension(2), save :: a + CCTK_REAL, dimension(7,5), save :: q + + CCTK_INT :: i, il, ir + + logical, save :: first = .true. + + if ( first ) then + call coeffs_1_4_3_opt ( a, q ) + first = .false. + end if + + dd = zero + imin = 0 + imax = -1 + + if ( bb(1) == 0 ) then + il = 1 + gsize + else + dd(1:5,1) = q(1:5,1) + imin(1) = 1; imax(1) = 5 + + dd(1:7,2) = q(1:7,2) + imin(2) = 1; imax(2) = 7 + + dd(1:7,3) = q(1:7,3) + imin(3) = 1; imax(3) = 7 + + dd(1:7,4) = q(1:7,4) + imin(4) = 1; imax(4) = 7 + + dd(1:7,5) = q(1:7,5) + imin(5) = 1; imax(5) = 7 + + il = 6 + end if + if ( bb(2) == 0 ) then + ir = nsize - gsize + else + dd(nsize-6:nsize,nsize-4) = -q(7:1:-1,5) + imin(nsize-4) = nsize-6; imax(nsize-4) = nsize + + dd(nsize-6:nsize,nsize-3) = -q(7:1:-1,4) + imin(nsize-3) = nsize-6; imax(nsize-3) = nsize + + dd(nsize-6:nsize,nsize-2) = -q(7:1:-1,3) + imin(nsize-2) = nsize-6; imax(nsize-2) = nsize + + dd(nsize-6:nsize,nsize-1) = -q(7:1:-1,2) + imin(nsize-1) = nsize-6; imax(nsize-1) = nsize + + dd(nsize-4:nsize,nsize) = -q(5:1:-1,1) + imin(nsize) = nsize-4; imax(nsize) = nsize + + ir = nsize - 5 + end if + do i = il, ir + dd(i-2:i-1,i) = -a(2:1:-1); dd(i+1:i+2,i) = a(1:2) + imin(i) = i-2; imax(i) = i+2 + end do +end subroutine set_coeff_4_3_opt |