#include /*I "petscdmda.h" I*/ #undef __FUNCT__ #define __FUNCT__ "FillClosureArray_Private" PETSC_STATIC_INLINE PetscErrorCode FillClosureArray_Private(DM dm, PetscSection section, PetscInt nP, const PetscInt points[], PetscScalar *vArray, const PetscScalar **array) { PetscScalar *a; PetscInt size = 0, dof, off, d, k, i; PetscErrorCode ierr; PetscFunctionBegin; for(i = 0; i < nP; ++i) { ierr = PetscSectionGetDof(section, points[i], &dof);CHKERRQ(ierr); size += dof; } ierr = DMGetWorkArray(dm, size, PETSC_SCALAR, &a);CHKERRQ(ierr); for(i = 0, k = 0; i < nP; ++i) { ierr = PetscSectionGetDof(section, points[i], &dof);CHKERRQ(ierr); ierr = PetscSectionGetOffset(section, points[i], &off);CHKERRQ(ierr); for(d = 0; d < dof; ++d, ++k) { a[k] = vArray[off+d]; } } *array = a; PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "FillClosureVec_Private" PETSC_STATIC_INLINE PetscErrorCode FillClosureVec_Private(DM dm, PetscSection section, PetscInt nP, const PetscInt points[], PetscScalar *vArray, const PetscScalar *array, InsertMode mode) { PetscInt dof, off, d, k, i; PetscErrorCode ierr; PetscFunctionBegin; if ((mode == INSERT_VALUES) || (mode == INSERT_ALL_VALUES)) { for(i = 0, k = 0; i < nP; ++i) { ierr = PetscSectionGetDof(section, points[i], &dof);CHKERRQ(ierr); ierr = PetscSectionGetOffset(section, points[i], &off);CHKERRQ(ierr); for(d = 0; d < dof; ++d, ++k) { vArray[off+d] = array[k]; } } } else { for(i = 0, k = 0; i < nP; ++i) { ierr = PetscSectionGetDof(section, points[i], &dof);CHKERRQ(ierr); ierr = PetscSectionGetOffset(section, points[i], &off);CHKERRQ(ierr); for(d = 0; d < dof; ++d, ++k) { vArray[off+d] += array[k]; } } } PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "GetPointArray_Private" PETSC_STATIC_INLINE PetscErrorCode GetPointArray_Private(DM dm,PetscInt n,PetscInt *points,PetscInt *rn,const PetscInt **rpoints) { PetscErrorCode ierr; PetscInt *work; PetscFunctionBegin; if (rn) *rn = n; if (rpoints) { ierr = DMGetWorkArray(dm,n,PETSC_INT,&work);CHKERRQ(ierr); ierr = PetscMemcpy(work,points,n*sizeof(PetscInt));CHKERRQ(ierr); *rpoints = work; } PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "RestorePointArray_Private" PETSC_STATIC_INLINE PetscErrorCode RestorePointArray_Private(DM dm,PetscInt *rn,const PetscInt **rpoints) { PetscErrorCode ierr; PetscFunctionBegin; if (rn) *rn = 0; if (rpoints) {ierr = DMRestoreWorkArray(dm,*rn,PETSC_INT,rpoints);CHKERRQ(ierr);} PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDAGetClosure" PetscErrorCode DMDAGetClosure(DM dm, PetscSection section, PetscInt p,PetscInt *n,const PetscInt **closure) { DM_DA *da = (DM_DA *) dm->data; PetscInt dim = da->dim; PetscInt nVx, nVy, nxF, nXF, nyF, nYF, nzF, nZF; PetscInt pStart, pEnd, cStart, cEnd, vStart, vEnd, fStart, fEnd, xfStart, xfEnd, yfStart; PetscErrorCode ierr; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); if (n) PetscValidIntPointer(n,4); if (closure) PetscValidPointer(closure, 5); if (!section) {ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr);} if (!section) SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_ARG_WRONG, "This DM has not default PetscSection"); ierr = DMDAGetHeightStratum(dm, -1, &pStart, &pEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, dim, &vStart, &vEnd);CHKERRQ(ierr); ierr = DMDAGetNumVertices(dm, &nVx, &nVy, PETSC_NULL, PETSC_NULL);CHKERRQ(ierr); ierr = DMDAGetNumFaces(dm, &nxF, &nXF, &nyF, &nYF, &nzF, &nZF);CHKERRQ(ierr); xfStart = fStart; xfEnd = xfStart+nXF; yfStart = xfEnd; if ((p < pStart) || (p >= pEnd)) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid point %d should be in [%d, %d)", p, pStart, pEnd); if ((p >= cStart) || (p < cEnd)) { /* Cell */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } else if (dim == 2) { /* 4 faces, 4 vertices Bottom-left vertex follows same order as cells Bottom y-face same order as cells Left x-face follows same order as cells We number the quad: 8--3--7 | | 4 0 2 | | 5--1--6 */ PetscInt c = p - cStart, cx = c % (nVx-1), cy = c / (nVx-1); PetscInt v = cy*nVx + cx + vStart; PetscInt xf = cy*nxF + cx + xfStart; PetscInt yf = c + yfStart; PetscInt points[9] = {p, yf, xf+1, yf+nyF, xf+0, v+0, v+1, v+nVx+1, v+nVx+0}; ierr = GetPointArray_Private(dm,9,points,n,closure);CHKERRQ(ierr); } else { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } else if ((p >= vStart) || (p < vEnd)) { /* Vertex */ ierr = GetPointArray_Private(dm,1,&p,n,closure);CHKERRQ(ierr); } else if ((p >= fStart) || (p < fStart + nXF)) { /* X Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { /* 2 vertices: The bottom vertex has the same numbering as the face */ PetscInt f = p - xfStart; PetscInt points[3] = {p, f, f+nVx}; SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); ierr = GetPointArray_Private(dm,3,points,n,closure);CHKERRQ(ierr); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } else if ((p >= fStart + nXF) || (p < fStart + nXF + nYF)) { /* Y Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { /* 2 vertices: The left vertex has the same numbering as the face */ PetscInt f = p - yfStart; PetscInt points[3] = {p, f, f+1}; SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); ierr = GetPointArray_Private(dm, 3, points, n, closure);CHKERRQ(ierr); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } else { /* Z Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no z-faces in 2D"); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDARestoreClosure" PetscErrorCode DMDARestoreClosure(DM dm, PetscSection section, PetscInt p,PetscInt *n,const PetscInt **closure) { PetscErrorCode ierr; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); PetscValidIntPointer(n,4); PetscValidPointer(closure, 5); ierr = RestorePointArray_Private(dm,n,closure);CHKERRQ(ierr); PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDAGetClosureScalar" /* If you did not pass PETSC_NULL for 'values', you must call DMDARestoreClosureScalar() */ PetscErrorCode DMDAGetClosureScalar(DM dm, PetscSection section,PetscInt p,PetscScalar *vArray,const PetscScalar **values) { DM_DA *da = (DM_DA *) dm->data; PetscInt dim = da->dim; PetscInt nVx, nVy, nxF, nXF, nyF, nYF, nzF, nZF; PetscInt pStart, pEnd, cStart, cEnd, vStart, vEnd, fStart, fEnd, xfStart, xfEnd, yfStart, yfEnd, zfStart; PetscErrorCode ierr; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); PetscValidScalarPointer(vArray, 4); PetscValidPointer(values, 5); if (!section) {ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr);} if (!section) SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_ARG_WRONG, "This DM has not default PetscSection"); ierr = DMDAGetHeightStratum(dm, -1, &pStart, &pEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, dim, &vStart, &vEnd);CHKERRQ(ierr); ierr = DMDAGetNumVertices(dm, &nVx, &nVy, PETSC_NULL, PETSC_NULL);CHKERRQ(ierr); ierr = DMDAGetNumFaces(dm, &nxF, &nXF, &nyF, &nYF, &nzF, &nZF);CHKERRQ(ierr); xfStart = fStart; xfEnd = xfStart+nXF; yfStart = xfEnd; yfEnd = yfStart+nYF; zfStart = yfEnd; if ((p < pStart) || (p >= pEnd)) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid point %d should be in [%d, %d)", p, pStart, pEnd); if ((p >= cStart) || (p < cEnd)) { /* Cell */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } else if (dim == 2) { /* 4 faces, 4 vertices Bottom-left vertex follows same order as cells Bottom y-face same order as cells Left x-face follows same order as cells We number the quad: 8--3--7 | | 4 0 2 | | 5--1--6 */ PetscInt c = p - cStart, cx = c % (nVx-1), cy = c / (nVx-1); PetscInt v = cy*nVx + cx + vStart; PetscInt xf = cy*nxF + cx + xfStart; PetscInt yf = c + yfStart; PetscInt points[9] = {p, yf, xf+1, yf+nyF, xf+0, v+0, v+1, v+nVx+1, v+nVx+0}; ierr = FillClosureArray_Private(dm, section, 9, points, vArray, values);CHKERRQ(ierr); } else { /* 6 faces, 8 vertices Bottom-left-back vertex follows same order as cells Back z-face follows same order as cells Bottom y-face follows same order as cells Left x-face follows same order as cells 14-----13 /| /| / | 2 / | / 5| / | 10-----9 4| | 11-|---12 |6 / | / | /1 3| / |/ |/ 7-----8 */ PetscInt c = p - cStart; PetscInt points[15] = {p, c+zfStart, c+zfStart+nzF, c+yfStart, c+xfStart+nxF, c+yfStart+nyF, c+xfStart, c+vStart+0, c+vStart+1, c+vStart+nVx+1, c+vStart+nVx+0, c+vStart+nVx*nVy+0, c+vStart+nVx*nVy+1, c+vStart+nVx*nVy+nVx+1, c+vStart+nVx*nVy+nVx+0}; SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); ierr = FillClosureArray_Private(dm, section, 15, points, vArray, values);CHKERRQ(ierr); } } else if ((p >= vStart) || (p < vEnd)) { /* Vertex */ ierr = FillClosureArray_Private(dm, section, 1, &p, vArray, values);CHKERRQ(ierr); } else if ((p >= fStart) || (p < fStart + nXF)) { /* X Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { /* 2 vertices: The bottom vertex has the same numbering as the face */ PetscInt f = p - xfStart; PetscInt points[3] = {p, f, f+nVx}; SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); ierr = FillClosureArray_Private(dm, section, 3, points, vArray, values);CHKERRQ(ierr); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } else if ((p >= fStart + nXF) || (p < fStart + nXF + nYF)) { /* Y Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { /* 2 vertices: The left vertex has the same numbering as the face */ PetscInt f = p - yfStart; PetscInt points[3] = {p, f, f+1}; SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Broken"); ierr = FillClosureArray_Private(dm, section, 3, points, vArray, values);CHKERRQ(ierr); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } else { /* Z Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no z-faces in 2D"); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDAVecGetClosure" PetscErrorCode DMDAVecGetClosure(DM dm, PetscSection section, Vec v, PetscInt p, const PetscScalar **values) { PetscScalar *vArray; PetscErrorCode ierr; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); PetscValidHeaderSpecific(v, VEC_CLASSID, 3); PetscValidPointer(values, 5); ierr = VecGetArray(v,&vArray);CHKERRQ(ierr); ierr = DMDAGetClosureScalar(dm,section,p,vArray,values);CHKERRQ(ierr); ierr = VecRestoreArray(v,&vArray);CHKERRQ(ierr); PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDARestoreClosureScalar" PetscErrorCode DMDARestoreClosureScalar(DM dm, PetscSection section,PetscInt p,PetscScalar *vArray,const PetscScalar **values) { PetscErrorCode ierr; PetscInt count; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); PetscValidPointer(values, 5); count = 0; /* We are lying about the count */ ierr = DMRestoreWorkArray(dm,count,PETSC_SCALAR,values);CHKERRQ(ierr); PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDAVecRestoreClosure" PetscErrorCode DMDAVecRestoreClosure(DM dm, PetscSection section, Vec v, PetscInt p, const PetscScalar **values) { PetscErrorCode ierr; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); PetscValidHeaderSpecific(v, VEC_CLASSID, 3); PetscValidPointer(values, 5); ierr = DMDARestoreClosureScalar(dm,section,p,PETSC_NULL,values);CHKERRQ(ierr); PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDASetClosureScalar" PetscErrorCode DMDASetClosureScalar(DM dm, PetscSection section, PetscInt p,PetscScalar *vArray, const PetscScalar *values, InsertMode mode) { DM_DA *da = (DM_DA *) dm->data; PetscInt dim = da->dim; PetscInt nVx, nVy, nxF, nXF, nyF, nYF, nzF, nZF; PetscInt pStart, pEnd, cStart, cEnd, vStart, vEnd, fStart, fEnd, xfStart, xfEnd, yfStart, yfEnd, zfStart; PetscErrorCode ierr; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); PetscValidScalarPointer(values, 4); PetscValidPointer(values, 5); if (!section) {ierr = DMGetDefaultSection(dm, §ion);CHKERRQ(ierr);} if (!section) SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_ARG_WRONG, "This DM has not default PetscSection"); ierr = DMDAGetHeightStratum(dm, -1, &pStart, &pEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, 0, &cStart, &cEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, 1, &fStart, &fEnd);CHKERRQ(ierr); ierr = DMDAGetHeightStratum(dm, dim, &vStart, &vEnd);CHKERRQ(ierr); ierr = DMDAGetNumVertices(dm, &nVx, &nVy, PETSC_NULL, PETSC_NULL);CHKERRQ(ierr); ierr = DMDAGetNumFaces(dm, &nxF, &nXF, &nyF, &nYF, &nzF, &nZF);CHKERRQ(ierr); xfStart = fStart; xfEnd = xfStart+nXF; yfStart = xfEnd; yfEnd = yfStart+nYF; zfStart = yfEnd; if ((p < pStart) || (p >= pEnd)) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Invalid point %d should be in [%d, %d)", p, pStart, pEnd); if ((p >= cStart) || (p < cEnd)) { /* Cell */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } else if (dim == 2) { /* 4 faces, 4 vertices Bottom-left vertex follows same order as cells Bottom y-face same order as cells Left x-face follows same order as cells We number the quad: 8--3--7 | | 4 0 2 | | 5--1--6 */ PetscInt c = p - cStart; PetscInt points[9] = {p, c+yfStart, c+xfStart+1, c+yfStart+nyF, c+xfStart+0, c+vStart+0, c+vStart+1, c+vStart+nVx+1, c+vStart+nVx+0}; ierr = FillClosureVec_Private(dm, section, 9, points, vArray, values, mode);CHKERRQ(ierr); } else { /* 6 faces, 8 vertices Bottom-left-back vertex follows same order as cells Back z-face follows same order as cells Bottom y-face follows same order as cells Left x-face follows same order as cells 14-----13 /| /| / | 2 / | / 5| / | 10-----9 4| | 11-|---12 |6 / | / | /1 3| / |/ |/ 7-----8 */ PetscInt c = p - cStart; PetscInt points[15] = {p, c+zfStart, c+zfStart+nzF, c+yfStart, c+xfStart+nxF, c+yfStart+nyF, c+xfStart, c+vStart+0, c+vStart+1, c+vStart+nVx+1, c+vStart+nVx+0, c+vStart+nVx*nVy+0, c+vStart+nVx*nVy+1, c+vStart+nVx*nVy+nVx+1, c+vStart+nVx*nVy+nVx+0}; ierr = FillClosureVec_Private(dm, section, 15, points, vArray, values, mode);CHKERRQ(ierr); } } else if ((p >= vStart) || (p < vEnd)) { /* Vertex */ ierr = FillClosureVec_Private(dm, section, 1, &p, vArray, values, mode);CHKERRQ(ierr); } else if ((p >= fStart) || (p < fStart + nXF)) { /* X Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { /* 2 vertices: The bottom vertex has the same numbering as the face */ PetscInt f = p - xfStart; PetscInt points[3] = {p, f, f+nVx}; ierr = FillClosureVec_Private(dm, section, 3, points, vArray, values, mode);CHKERRQ(ierr); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } else if ((p >= fStart + nXF) || (p < fStart + nXF + nYF)) { /* Y Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { /* 2 vertices: The left vertex has the same numbering as the face */ PetscInt f = p - yfStart; PetscInt points[3] = {p, f, f+1}; ierr = FillClosureVec_Private(dm, section, 3, points, vArray, values, mode);CHKERRQ(ierr); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } else { /* Z Face */ if (dim == 1) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no faces in 1D"); } else if (dim == 2) { SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_PLIB, "There are no z-faces in 2D"); } else if (dim == 3) { /* 4 vertices */ SETERRQ(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Not implemented"); } } PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDAVecSetClosure" PetscErrorCode DMDAVecSetClosure(DM dm, PetscSection section, Vec v, PetscInt p, const PetscScalar *values, InsertMode mode) { PetscScalar *vArray; PetscErrorCode ierr; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); PetscValidHeaderSpecific(v, VEC_CLASSID, 3); PetscValidPointer(values, 5); ierr = VecGetArray(v,&vArray);CHKERRQ(ierr); ierr = DMDASetClosureScalar(dm,section,p,vArray,values,mode);CHKERRQ(ierr); ierr = VecRestoreArray(v,&vArray);CHKERRQ(ierr); PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDACnvertToCell" /*@ DMDAConvertToCell - Convert (i,j,k) to local cell number Not Collective Input Parameter: + da - the distributed array = s - A MatStencil giving (i,j,k) Output Parameter: . cell - the local cell number Level: developer .seealso: DMDAVecGetClosure() @*/ PetscErrorCode DMDAConvertToCell(DM dm, MatStencil s, PetscInt *cell) { DM_DA *da = (DM_DA *) dm->data; const PetscInt dim = da->dim; const PetscInt mx = (da->Xe - da->Xs)/da->w, my = da->Ye - da->Ys, mz = da->Ze - da->Zs; const PetscInt il = s.i - da->Xs/da->w, jl = dim > 1 ? s.j - da->Ys : 0, kl = dim > 2 ? s.k - da->Zs : 0; PetscFunctionBegin; *cell = -1; if ((s.i < da->Xs/da->w) || (s.i >= da->Xe/da->w)) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Stencil i %d should be in [%d, %d)", s.i, da->Xs/da->w, da->Xe/da->w); if ((dim > 1) && ((s.j < da->Ys) || (s.j >= da->Ye))) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Stencil j %d should be in [%d, %d)", s.j, da->Ys, da->Ye); if ((dim > 2) && ((s.k < da->Zs) || (s.k >= da->Ze))) SETERRQ3(((PetscObject) dm)->comm, PETSC_ERR_ARG_OUTOFRANGE, "Stencil k %d should be in [%d, %d)", s.k, da->Zs, da->Ze); *cell = (kl*my + jl)*mx + il; PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDAComputeCellGeometry_2D" PetscErrorCode DMDAComputeCellGeometry_2D(DM dm, const PetscScalar vertices[], const PetscReal refPoint[], PetscReal J[], PetscReal invJ[], PetscReal *detJ) { const PetscScalar x0 = vertices[0]; const PetscScalar y0 = vertices[1]; const PetscScalar x1 = vertices[2]; const PetscScalar y1 = vertices[3]; const PetscScalar x2 = vertices[4]; const PetscScalar y2 = vertices[5]; const PetscScalar x3 = vertices[6]; const PetscScalar y3 = vertices[7]; const PetscScalar f_01 = x2 - x1 - x3 + x0; const PetscScalar g_01 = y2 - y1 - y3 + y0; const PetscScalar x = refPoint[0]; const PetscScalar y = refPoint[1]; PetscReal invDet; PetscErrorCode ierr; PetscFunctionBegin; #if defined(PETSC_USE_DEBUG) ierr = PetscPrintf(PETSC_COMM_SELF, "Cell (%g,%g)--(%g,%g)--(%g,%g)--(%g,%g)\n", PetscRealPart(x0),PetscRealPart(y0),PetscRealPart(x1),PetscRealPart(y1),PetscRealPart(x2),PetscRealPart(y2),PetscRealPart(x3),PetscRealPart(y3));CHKERRQ(ierr); ierr = PetscPrintf(PETSC_COMM_SELF, "Ref Point (%g,%g)\n", PetscRealPart(x), PetscRealPart(y));CHKERRQ(ierr); #endif J[0] = PetscRealPart(x1 - x0 + f_01*y) * 0.5; J[1] = PetscRealPart(x3 - x0 + f_01*x) * 0.5; J[2] = PetscRealPart(y1 - y0 + g_01*y) * 0.5; J[3] = PetscRealPart(y3 - y0 + g_01*x) * 0.5; *detJ = J[0]*J[3] - J[1]*J[2]; invDet = 1.0/(*detJ); invJ[0] = invDet*J[3]; invJ[1] = -invDet*J[1]; invJ[2] = -invDet*J[2]; invJ[3] = invDet*J[0]; ierr = PetscLogFlops(30);CHKERRQ(ierr); PetscFunctionReturn(0); } #undef __FUNCT__ #define __FUNCT__ "DMDAComputeCellGeometry" PetscErrorCode DMDAComputeCellGeometry(DM dm, PetscInt cell, PetscQuadrature *quad, PetscReal v0[], PetscReal J[], PetscReal invJ[], PetscReal detJ[]) { DM cdm; Vec coordinates; const PetscScalar *vertices; PetscInt dim, d, q; PetscErrorCode ierr; PetscFunctionBegin; PetscValidHeaderSpecific(dm, DM_CLASSID, 1); ierr = DMDAGetInfo(dm, &dim, 0,0,0,0,0,0,0,0,0,0,0,0);CHKERRQ(ierr); ierr = DMDAGetCoordinates(dm, &coordinates);CHKERRQ(ierr); ierr = DMDAGetCoordinateDA(dm, &cdm);CHKERRQ(ierr); ierr = DMDAVecGetClosure(cdm, PETSC_NULL, coordinates, cell, &vertices);CHKERRQ(ierr); for(d = 0; d < dim; ++d) { v0[d] = PetscRealPart(vertices[d]); } switch(dim) { case 2: for(q = 0; q < quad->numQuadPoints; ++q) { ierr = DMDAComputeCellGeometry_2D(dm, vertices, &quad->quadPoints[q*dim], J, invJ, detJ);CHKERRQ(ierr); } break; default: SETERRQ1(((PetscObject) dm)->comm, PETSC_ERR_SUP, "Dimension %d not supported", dim); } PetscFunctionReturn(0); }