c -*-Fortran-*- c $Header: /home/eschnett/C/carpet/Carpet/Carpet/CarpetLib/src/prolongate_3d_real8_o5.F77,v 1.1 2003/06/24 14:00:58 schnetter Exp $ #include "cctk.h" #define CHKIDX(i,j,k, imax,jmax,kmax, where) \ if ((i).lt.1 .or. (i).gt.(imax) \ .or. (j).lt.1 .or. (j).gt.(jmax) \ .or. (k).lt.1 .or. (k).gt.(kmax)) then &&\ write (msg, '(a, " array index out of bounds: shape is (",i4,",",i4,",",i4,"), index is (",i4,",",i4,",",i4,")")') \ (where), (imax), (jmax), (kmax), (i), (j), (k) &&\ call CCTK_WARN (0, msg(1:len_trim(msg))) &&\ end if subroutine prolongate_3d_real8_o5 ( $ src, srciext, srcjext, srckext, $ dst, dstiext, dstjext, dstkext, $ srcbbox, dstbbox, regbbox) implicit none CCTK_REAL8 one parameter (one = 1) integer srciext, srcjext, srckext CCTK_REAL8 src(srciext,srcjext,srckext) integer dstiext, dstjext, dstkext CCTK_REAL8 dst(dstiext,dstjext,dstkext) CCTK_REAL8 t c bbox(:,1) is lower boundary (inclusive) c bbox(:,2) is upper boundary (inclusive) c bbox(:,3) is stride integer srcbbox(3,3), dstbbox(3,3), regbbox(3,3) integer offsetlo, offsethi integer regiext, regjext, regkext integer dstifac, dstjfac, dstkfac integer srcioff, srcjoff, srckoff integer dstioff, dstjoff, dstkoff CCTK_REAL8 s1fac, s2fac, s3fac CCTK_REAL8 dstdiv integer i, j, k integer i0, j0, k0 integer fi, fj, fk integer ifac(6), jfac(6), kfac(6) integer ii, jj, kk CCTK_REAL8 fac CCTK_REAL8 res integer d character msg*1000 do d=1,3 if (srcbbox(d,3).eq.0 .or. dstbbox(d,3).eq.0 $ .or. regbbox(d,3).eq.0) then call CCTK_WARN (0, "Internal error: stride is zero") end if if (srcbbox(d,3).le.regbbox(d,3) $ .or. dstbbox(d,3).ne.regbbox(d,3)) then call CCTK_WARN (0, "Internal error: strides disagree") end if if (mod(srcbbox(d,3), dstbbox(d,3)).ne.0) then call CCTK_WARN (0, "Internal error: destination strides are not integer multiples of the source strides") end if if (mod(srcbbox(d,1), srcbbox(d,3)).ne.0 $ .or. mod(dstbbox(d,1), dstbbox(d,3)).ne.0 $ .or. mod(regbbox(d,1), regbbox(d,3)).ne.0) then call CCTK_WARN (0, "Internal error: array origins are not integer multiples of the strides") end if if (regbbox(d,1).gt.regbbox(d,2)) then c This could be handled, but is likely to point to an error elsewhere call CCTK_WARN (0, "Internal error: region extent is empty") end if regkext = (regbbox(d,2) - regbbox(d,1)) / regbbox(d,3) + 1 dstkfac = srcbbox(d,3) / dstbbox(d,3) srckoff = (regbbox(d,1) - srcbbox(d,1)) / dstbbox(d,3) offsetlo = regbbox(d,3) if (mod(srckoff + 0, dstkfac).eq.0) then offsetlo = 0 if (regkext.gt.1) then offsetlo = regbbox(d,3) end if end if offsethi = regbbox(d,3) if (mod(srckoff + regkext-1, dstkfac).eq.0) then offsethi = 0 if (regkext.gt.1) then offsethi = regbbox(d,3) end if end if if (regbbox(d,1)-offsetlo.lt.srcbbox(d,1) $ .or. regbbox(d,2)+offsethi.gt.srcbbox(d,2) $ .or. regbbox(d,1).lt.dstbbox(d,1) $ .or. regbbox(d,2).gt.dstbbox(d,2)) then call CCTK_WARN (0, "Internal error: region extent is not contained in array extent") end if end do if (srciext.ne.(srcbbox(1,2)-srcbbox(1,1))/srcbbox(1,3)+1 $ .or. srcjext.ne.(srcbbox(2,2)-srcbbox(2,1))/srcbbox(2,3)+1 $ .or. srckext.ne.(srcbbox(3,2)-srcbbox(3,1))/srcbbox(3,3)+1 $ .or. dstiext.ne.(dstbbox(1,2)-dstbbox(1,1))/dstbbox(1,3)+1 $ .or. dstjext.ne.(dstbbox(2,2)-dstbbox(2,1))/dstbbox(2,3)+1 $ .or. dstkext.ne.(dstbbox(3,2)-dstbbox(3,1))/dstbbox(3,3)+1) then call CCTK_WARN (0, "Internal error: array sizes don't agree with bounding boxes") end if regiext = (regbbox(1,2) - regbbox(1,1)) / regbbox(1,3) + 1 regjext = (regbbox(2,2) - regbbox(2,1)) / regbbox(2,3) + 1 regkext = (regbbox(3,2) - regbbox(3,1)) / regbbox(3,3) + 1 dstifac = srcbbox(1,3) / dstbbox(1,3) dstjfac = srcbbox(2,3) / dstbbox(2,3) dstkfac = srcbbox(3,3) / dstbbox(3,3) srcioff = (regbbox(1,1) - srcbbox(1,1)) / dstbbox(1,3) srcjoff = (regbbox(2,1) - srcbbox(2,1)) / dstbbox(2,3) srckoff = (regbbox(3,1) - srcbbox(3,1)) / dstbbox(3,3) dstioff = (regbbox(1,1) - dstbbox(1,1)) / dstbbox(1,3) dstjoff = (regbbox(2,1) - dstbbox(2,1)) / dstbbox(2,3) dstkoff = (regbbox(3,1) - dstbbox(3,1)) / dstbbox(3,3) c Loop over fine region c (This expression cannot be evaluated as integer) dstdiv = one / (120*dstifac**5) / (120*dstjfac**5) / (120*dstkfac**5) do k = 0, regkext-1 k0 = (srckoff + k) / dstkfac fk = mod(srckoff + k, dstkfac) kfac(1) = (fk+ dstkfac) * (fk ) * (fk-dstkfac) * (fk-2*dstkfac) * (fk-3*dstkfac) * (- 1) kfac(2) = (fk+2*dstkfac) * (fk ) * (fk-dstkfac) * (fk-2*dstkfac) * (fk-3*dstkfac) * ( 5) kfac(3) = (fk+2*dstkfac) * (fk+dstkfac) * (fk-dstkfac) * (fk-2*dstkfac) * (fk-3*dstkfac) * (-10) kfac(4) = (fk+2*dstkfac) * (fk+dstkfac) * (fk ) * (fk-2*dstkfac) * (fk-3*dstkfac) * ( 10) kfac(5) = (fk+2*dstkfac) * (fk+dstkfac) * (fk ) * (fk- dstkfac) * (fk-3*dstkfac) * (- 5) kfac(6) = (fk+2*dstkfac) * (fk+dstkfac) * (fk ) * (fk- dstkfac) * (fk-2*dstkfac) * ( 1) do j = 0, regjext-1 j0 = (srcjoff + j) / dstjfac fj = mod(srcjoff + j, dstjfac) jfac(1) = (fj+ dstjfac) * (fj ) * (fj-dstjfac) * (fj-2*dstjfac) * (fj-3*dstjfac) * (- 1) jfac(2) = (fj+2*dstjfac) * (fj ) * (fj-dstjfac) * (fj-2*dstjfac) * (fj-3*dstjfac) * ( 5) jfac(3) = (fj+2*dstjfac) * (fj+dstjfac) * (fj-dstjfac) * (fj-2*dstjfac) * (fj-3*dstjfac) * (-10) jfac(4) = (fj+2*dstjfac) * (fj+dstjfac) * (fj ) * (fj-2*dstjfac) * (fj-3*dstjfac) * ( 10) jfac(5) = (fj+2*dstjfac) * (fj+dstjfac) * (fj ) * (fj- dstjfac) * (fj-3*dstjfac) * (- 5) jfac(6) = (fj+2*dstjfac) * (fj+dstjfac) * (fj ) * (fj- dstjfac) * (fj-2*dstjfac) * ( 1) do i = 0, regiext-1 i0 = (srcioff + i) / dstifac fi = mod(srcioff + i, dstifac) ifac(1) = (fi+ dstifac) * (fi ) * (fi-dstifac) * (fi-2*dstifac) * (fi-3*dstifac) * (- 1) ifac(2) = (fi+2*dstifac) * (fi ) * (fi-dstifac) * (fi-2*dstifac) * (fi-3*dstifac) * ( 5) ifac(3) = (fi+2*dstifac) * (fi+dstifac) * (fi-dstifac) * (fi-2*dstifac) * (fi-3*dstifac) * (-10) ifac(4) = (fi+2*dstifac) * (fi+dstifac) * (fi ) * (fi-2*dstifac) * (fi-3*dstifac) * ( 10) ifac(5) = (fi+2*dstifac) * (fi+dstifac) * (fi ) * (fi- dstifac) * (fi-3*dstifac) * (- 5) ifac(6) = (fi+2*dstifac) * (fi+dstifac) * (fi ) * (fi- dstifac) * (fi-2*dstifac) * ( 1) res = 0 do kk=1,6 do jj=1,6 do ii=1,6 if (ifac(ii).ne.0 .and. jfac(jj).ne.0 .and. kfac(kk).ne.0) then c (This expression cannot be evaluated as integer) fac = one * ifac(ii) * jfac(jj) * kfac(kk) CHKIDX (i0+ii-2, j0+jj-2, k0+kk-2, \ srciext,srcjext,srckext, "source") res = res + fac * src(i0+ii-2, j0+jj-2, k0+kk-2) end if end do end do end do CHKIDX (dstioff+i+1, dstjoff+j+1, dstkoff+k+1, \ dstiext,dstjext,dstkext, "destination") dst (dstioff+i+1, dstjoff+j+1, dstkoff+k+1) = dstdiv * res end do end do end do end