diff options
Diffstat (limited to 'src/call_derivs2.c')
-rw-r--r-- | src/call_derivs2.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/src/call_derivs2.c b/src/call_derivs2.c new file mode 100644 index 0000000..23a5899 --- /dev/null +++ b/src/call_derivs2.c @@ -0,0 +1,106 @@ +#include "cctk.h" +#include "cctk_Parameters.h" +#include "cctk_Arguments.h" + +#include "util_ErrorCodes.h" +#include "util_Table.h" + +#include "stencil.h" + + + +void DiffGv2 ( const CCTK_POINTER_TO_CONST cctkGH_, const CCTK_INT dir, + const CCTK_REAL *var, CCTK_REAL *dvar2, + const CCTK_INT table_handle ) +{ + cGH const * restrict const cctkGH = cctkGH_; + DECLARE_CCTK_PARAMETERS + DECLARE_CCTK_ARGUMENTS + + CCTK_INT ni, nj, nk, gsize, loc_order; + CCTK_REAL delta; + CCTK_INT bb[2]; + int onesided[6]; + int nelements; + + void CCTK_FCALL CCTK_FNAME(deriv2_gf_2_1)(const CCTK_REAL *var, + const CCTK_INT *ni, + const CCTK_INT *nj, + const CCTK_INT *nk, + const CCTK_INT *dir, + const CCTK_INT *bb, + const CCTK_INT *gsize, + const CCTK_REAL *delta, + CCTK_REAL *dvar2); + void CCTK_FCALL CCTK_FNAME(deriv2_gf_4_2)(const CCTK_REAL *var, + const CCTK_INT *ni, + const CCTK_INT *nj, + const CCTK_INT *nk, + const CCTK_INT *dir, + const CCTK_INT *bb, + const CCTK_INT *gsize, + const CCTK_REAL *delta, + CCTK_REAL *dvar2); + + + ni = cctk_lsh[0]; nj = cctk_lsh[1]; nk = cctk_lsh[2]; + + if ( table_handle >=0 ) { + nelements = Util_TableGetInt ( table_handle, &loc_order, "order" ); + if ( nelements == UTIL_ERROR_TABLE_NO_SUCH_KEY ) { + loc_order = order; + } else if ( nelements != 1) { + CCTK_WARN (0, "The options table has an entry \"order\", but it does not have the right properties"); + } + } else { + loc_order = order; + } + + SBP_determine_onesided_stencil (cctkGH, onesided); + + switch(dir) { + case 0: { + delta = CCTK_DELTA_SPACE(0); + bb[0] = onesided[0]; + bb[1] = onesided[1]; + gsize = cctk_nghostzones[0]; + break; + } + case 1: { + delta = CCTK_DELTA_SPACE(1); + bb[0] = onesided[2]; + bb[1] = onesided[3]; + gsize = cctk_nghostzones[1]; + break; + } + case 2: { + delta = CCTK_DELTA_SPACE(2); + bb[0] = onesided[4]; + bb[1] = onesided[5]; + gsize = cctk_nghostzones[2]; + break; + } + default: + CCTK_WARN (0, "Wrong direction specified"); + } + + if ( CCTK_Equals(norm_type,"Diagonal") ) { + switch(loc_order) { + case 2: { + CCTK_FNAME(deriv2_gf_2_1)(var,&ni,&nj,&nk,&dir,bb,&gsize,&delta,dvar2); + break; + } + case 4: { + CCTK_FNAME(deriv2_gf_4_2)(var,&ni,&nj,&nk,&dir,bb,&gsize,&delta,dvar2); + break; + } + default: + CCTK_WARN (0, "Unknown 2nd derivative stencil specified"); + } + } else { + switch(loc_order) { + default: + CCTK_WARN (0, "Unknown stencil specified"); + } + } +} |