1 #include <../src/ts/characteristic/impls/da/slda.h> /*I "petsccharacteristic.h" I*/ 2 3 #undef __FUNCT__ 4 #define __FUNCT__ "CharacteristicView_DA" 5 PetscErrorCode CharacteristicView_DA(Characteristic c, PetscViewer viewer) 6 { 7 Characteristic_DA *da = (Characteristic_DA *) c->data; 8 PetscBool iascii, isstring; 9 PetscErrorCode ierr; 10 11 PetscFunctionBegin; 12 /* Pull out field names from DM */ 13 ierr = PetscTypeCompare((PetscObject) viewer, PETSCVIEWERASCII, &iascii);CHKERRQ(ierr); 14 ierr = PetscTypeCompare((PetscObject) viewer, PETSCVIEWERSTRING, &isstring);CHKERRQ(ierr); 15 if (iascii) { 16 ierr = PetscViewerASCIIPrintf(viewer," DMDA: dummy=%D\n", da->dummy);CHKERRQ(ierr); 17 } else if (isstring) { 18 ierr = PetscViewerStringSPrintf(viewer,"dummy %D", da->dummy);CHKERRQ(ierr); 19 } else { 20 SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP, "Viewer type %s not supported for Characteristic DMDA", ((PetscObject) viewer)->type_name); 21 } 22 PetscFunctionReturn(0); 23 } 24 25 #undef __FUNCT__ 26 #define __FUNCT__ "CharacteristicDestroy_DA" 27 PetscErrorCode CharacteristicDestroy_DA(Characteristic c) 28 { 29 Characteristic_DA *da = (Characteristic_DA*) c->data; 30 PetscErrorCode ierr; 31 32 PetscFunctionBegin; 33 ierr = PetscFree(da);CHKERRQ(ierr); 34 PetscFunctionReturn(0); 35 } 36 37 #undef __FUNCT__ 38 #define __FUNCT__ "CharacteristicSetUp_DA" 39 PetscErrorCode CharacteristicSetUp_DA(Characteristic c) 40 { 41 PetscMPIInt blockLen[2]; 42 MPI_Aint indices[2]; 43 MPI_Datatype oldtypes[2]; 44 PetscInt dim, numValues; 45 PetscErrorCode ierr; 46 47 ierr = DMDAGetInfo(c->velocityDA, &dim, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,0,0);CHKERRQ(ierr); 48 if (c->structured) c->numIds = dim; 49 else c->numIds = 3; 50 if (c->numFieldComp > MAX_COMPONENTS) SETERRQ2(PETSC_COMM_SELF,PETSC_ERR_ARG_OUTOFRANGE, "The maximum number of fields allowed is %d, you have %d. You can recompile after increasing MAX_COMPONENTS.", MAX_COMPONENTS, c->numFieldComp); 51 numValues = 4 + MAX_COMPONENTS; 52 53 /* Create new MPI datatype for communication of characteristic point structs */ 54 blockLen[0] = 1+c->numIds; indices[0] = 0; oldtypes[0] = MPIU_INT; 55 blockLen[1] = numValues; indices[1] = (1+c->numIds)*sizeof(PetscInt); oldtypes[1] = MPIU_SCALAR; 56 ierr = MPI_Type_struct(2, blockLen, indices, oldtypes, &c->itemType);CHKERRQ(ierr); 57 ierr = MPI_Type_commit(&c->itemType);CHKERRQ(ierr); 58 59 /* Initialize the local queue for char foot values */ 60 ierr = VecGetLocalSize(c->velocity, &c->queueMax);CHKERRQ(ierr); 61 ierr = PetscMalloc(c->queueMax * sizeof(CharacteristicPointDA2D), &c->queue);CHKERRQ(ierr); 62 c->queueSize = 0; 63 64 /* Allocate communication structures */ 65 if (c->numNeighbors <= 0) { 66 SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE, "Invalid number of neighbors %d. Call CharactersiticSetNeighbors() before setup.", c->numNeighbors); 67 } 68 ierr = PetscMalloc(c->numNeighbors * sizeof(PetscInt), &c->needCount);CHKERRQ(ierr); 69 ierr = PetscMalloc(c->numNeighbors * sizeof(PetscInt), &c->localOffsets);CHKERRQ(ierr); 70 ierr = PetscMalloc(c->numNeighbors * sizeof(PetscInt), &c->fillCount);CHKERRQ(ierr); 71 ierr = PetscMalloc(c->numNeighbors * sizeof(PetscInt), &c->remoteOffsets);CHKERRQ(ierr); 72 ierr = PetscMalloc((c->numNeighbors-1) * sizeof(MPI_Request), &c->request);CHKERRQ(ierr); 73 ierr = PetscMalloc((c->numNeighbors-1) * sizeof(MPI_Status), &c->status);CHKERRQ(ierr); 74 PetscFunctionReturn(0); 75 } 76 77 EXTERN_C_BEGIN 78 #undef __FUNCT__ 79 #define __FUNCT__ "CharacteristicCreate_DA" 80 PetscErrorCode CharacteristicCreate_DA(Characteristic c) 81 { 82 Characteristic_DA *da; 83 PetscErrorCode ierr; 84 85 PetscFunctionBegin; 86 ierr = PetscNew(Characteristic_DA, &da);CHKERRQ(ierr); 87 ierr = PetscMemzero(da, sizeof(Characteristic_DA));CHKERRQ(ierr); 88 ierr = PetscLogObjectMemory(c, sizeof(Characteristic_DA));CHKERRQ(ierr); 89 c->data = (void *) da; 90 91 c->ops->setup = CharacteristicSetUp_DA; 92 c->ops->destroy = CharacteristicDestroy_DA; 93 c->ops->view = CharacteristicView_DA; 94 95 da->dummy = 0; 96 PetscFunctionReturn(0); 97 } 98 EXTERN_C_END 99 100 #undef __FUNCT__ 101 #define __FUNCT__ "DMDAMapCoordsToPeriodicDomain" 102 /* ----------------------------------------------------------------------------- 103 Checks for periodicity of a DM and Maps points outside of a domain back onto the domain 104 using appropriate periodicity. At the moment assumes only a 2-D DMDA. 105 ----------------------------------------------------------------------------------------*/ 106 PetscErrorCode DMDAMapCoordsToPeriodicDomain(DM da, PetscScalar *x, PetscScalar *y) 107 { 108 DMDABoundaryType bx, by; 109 PetscInt dim, gx, gy; 110 PetscErrorCode ierr; 111 112 PetscFunctionBegin; 113 ierr = DMDAGetInfo(da, &dim, &gx, &gy, 0, 0, 0, 0, 0, 0, &bx, &by, 0, 0); 114 115 if (bx == DMDA_BOUNDARY_PERIODIC) { 116 while (*x >= ( PetscScalar ) gx ) { *x -= ( PetscScalar ) gx; } 117 while (*x < 0.0 ) { *x += ( PetscScalar ) gx; } 118 } 119 if (by == DMDA_BOUNDARY_PERIODIC) { 120 while (*y >= ( PetscScalar ) gy ) { *y -= ( PetscScalar ) gy; } 121 while (*y < 0.0 ) { *y += ( PetscScalar ) gy; } 122 } 123 PetscFunctionReturn(ierr); 124 } 125