diff options
Diffstat (limited to 'Carpet/CarpetLib/src/restrict_3d_cc_rf2.cc')
| -rw-r--r-- | Carpet/CarpetLib/src/restrict_3d_cc_rf2.cc | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/Carpet/CarpetLib/src/restrict_3d_cc_rf2.cc b/Carpet/CarpetLib/src/restrict_3d_cc_rf2.cc new file mode 100644 index 000000000..9c0fbccb0 --- /dev/null +++ b/Carpet/CarpetLib/src/restrict_3d_cc_rf2.cc @@ -0,0 +1,191 @@ +#include <algorithm> +#include <cassert> +#include <cmath> + +#include <cctk.h> +#include <cctk_Parameters.h> + +#include "operator_prototypes.hh" +#include "typeprops.hh" + +using namespace std; + + + +namespace CarpetLib { + + + +#define SRCIND3(i,j,k) \ + index3 (srcioff + (i), srcjoff + (j), srckoff + (k), \ + srciext, srcjext, srckext) +#define DSTIND3(i,j,k) \ + index3 (dstioff + (i), dstjoff + (j), dstkoff + (k), \ + dstiext, dstjext, dstkext) + + + + template <typename T> + void + restrict_3d_cc_rf2 (T const * restrict const src, + ivect3 const & srcext, + T * restrict const dst, + ivect3 const & dstext, + ibbox3 const & srcbbox, + ibbox3 const & dstbbox, + ibbox3 const & regbbox) + { + DECLARE_CCTK_PARAMETERS; + + typedef typename typeprops<T>::real RT; + + + +#if 0 + // This is already guaranteed by bbox + if (any (srcbbox.stride() == 0 or + dstbbox.stride() == 0 or + regbbox.stride() == 0)) + { + CCTK_WARN (0, "Internal error: stride is zero"); + } +#endif + + if (any (srcbbox.stride() >= regbbox.stride() or + dstbbox.stride() != regbbox.stride())) + { + CCTK_WARN (0, "Internal error: strides disagree"); + } + + if (any (reffact2 * srcbbox.stride() != dstbbox.stride())) { + CCTK_WARN (0, "Internal error: destination strides are not twice the source strides"); + } + +#if 0 + // This needs to be allowed for cell centring + if (any (srcbbox.lower() % srcbbox.stride() != 0 or + dstbbox.lower() % dstbbox.stride() != 0 or + regbbox.lower() % regbbox.stride() != 0)) + { + CCTK_WARN (0, "Internal error: array origins are not integer multiples of the strides"); + } +#endif + + // This could be handled, but is likely to point to an error + // elsewhere + if (regbbox.empty()) { + CCTK_WARN (0, "Internal error: region extent is empty"); + } + +#if 0 + // This is already guaranteed by bbox + if (any ((srcbbox.upper() - srcbbox.lower()) % srcbbox.stride() != 0 or + (dstbbox.upper() - dstbbox.lower()) % dstbbox.stride() != 0 or + (regbbox.upper() - regbbox.lower()) % regbbox.stride() != 0)) + { + CCTK_WARN (0, "Internal error: array extents are not integer multiples of the strides"); + } +#endif + + if (not regbbox.expanded_for(srcbbox).is_contained_in(srcbbox) or + not regbbox.is_contained_in(dstbbox)) + { + CCTK_WARN (0, "Internal error: region extent is not contained in array extent"); + } + + if (any (srcext != srcbbox.shape() / srcbbox.stride() or + dstext != dstbbox.shape() / dstbbox.stride())) + { + CCTK_WARN (0, "Internal error: array sizes don't agree with bounding boxes"); + } + + + + ivect3 const regext = regbbox.shape() / regbbox.stride(); + assert (all (srcbbox.stride() % 2 == 0)); + assert (all ((regbbox.lower() - srcbbox.lower() - srcbbox.stride() / 2) % + srcbbox.stride() == 0)); + ivect3 const srcoff = + (regbbox.lower() - srcbbox.lower() - srcbbox.stride() / 2) / + srcbbox.stride(); + assert (all ((regbbox.lower() - dstbbox.lower()) % dstbbox.stride() == 0)); + ivect3 const dstoff = + (regbbox.lower() - dstbbox.lower()) / dstbbox.stride(); + + + + int const srciext = srcext[0]; + int const srcjext = srcext[1]; + int const srckext = srcext[2]; + + int const dstiext = dstext[0]; + int const dstjext = dstext[1]; + int const dstkext = dstext[2]; + + int const regiext = regext[0]; + int const regjext = regext[1]; + int const regkext = regext[2]; + + int const srcioff = srcoff[0]; + int const srcjoff = srcoff[1]; + int const srckoff = srcoff[2]; + + int const dstioff = dstoff[0]; + int const dstjoff = dstoff[1]; + int const dstkoff = dstoff[2]; + + + + RT const one = 1; + + RT const f1 = one/2; + RT const f2 = one/2; + + + + // Loop over coarse region + for (int k=0; k<regkext; ++k) { + for (int j=0; j<regjext; ++j) { + for (int i=0; i<regiext; ++i) { + + dst [DSTIND3(i, j, k)] = + + f1*f1*f1 * src [SRCIND3(2*i , 2*j , 2*k )] + + f2*f1*f1 * src [SRCIND3(2*i+1, 2*j , 2*k )] + + f1*f2*f1 * src [SRCIND3(2*i , 2*j+1, 2*k )] + + f2*f2*f1 * src [SRCIND3(2*i+1, 2*j+1, 2*k )] + + f1*f1*f2 * src [SRCIND3(2*i , 2*j , 2*k+1)] + + f2*f1*f2 * src [SRCIND3(2*i+1, 2*j , 2*k+1)] + + f1*f2*f2 * src [SRCIND3(2*i , 2*j+1, 2*k+1)] + + f2*f2*f2 * src [SRCIND3(2*i+1, 2*j+1, 2*k+1)]; + + } + } + } + + } + + + + template + void + restrict_3d_cc_rf2 (CCTK_REAL const * restrict const src, + ivect3 const & srcext, + CCTK_REAL * restrict const dst, + ivect3 const & dstext, + ibbox3 const & srcbbox, + ibbox3 const & dstbbox, + ibbox3 const & regbbox); + + template + void + restrict_3d_cc_rf2 (CCTK_COMPLEX const * restrict const src, + ivect3 const & srcext, + CCTK_COMPLEX * restrict const dst, + ivect3 const & dstext, + ibbox3 const & srcbbox, + ibbox3 const & dstbbox, + ibbox3 const & regbbox); + + + +} // namespace CarpetLib |