1 #include <../src/ts/characteristic/impls/da/slda.h> /*I "petsccharacteristic.h" I*/ 2 #include <petscdmda.h> 3 #include <petscviewer.h> 4 5 #undef __FUNCT__ 6 #define __FUNCT__ "CharacteristicView_DA" 7 PetscErrorCode CharacteristicView_DA(Characteristic c, PetscViewer viewer) 8 { 9 Characteristic_DA *da = (Characteristic_DA*) c->data; 10 PetscBool iascii, isstring; 11 PetscErrorCode ierr; 12 13 PetscFunctionBegin; 14 /* Pull out field names from DM */ 15 ierr = PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERASCII, &iascii);CHKERRQ(ierr); 16 ierr = PetscObjectTypeCompare((PetscObject) viewer, PETSCVIEWERSTRING, &isstring);CHKERRQ(ierr); 17 if (iascii) { 18 ierr = PetscViewerASCIIPrintf(viewer," DMDA: dummy=%D\n", da->dummy);CHKERRQ(ierr); 19 } else if (isstring) { 20 ierr = PetscViewerStringSPrintf(viewer,"dummy %D", da->dummy);CHKERRQ(ierr); 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_create_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 = PetscMalloc1(c->queueMax, &c->queue);CHKERRQ(ierr); 62 c->queueSize = 0; 63 64 /* Allocate communication structures */ 65 if (c->numNeighbors <= 0) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_ARG_WRONGSTATE, "Invalid number of neighbors %d. Call CharactersiticSetNeighbors() before setup.", c->numNeighbors); 66 ierr = PetscMalloc1(c->numNeighbors, &c->needCount);CHKERRQ(ierr); 67 ierr = PetscMalloc1(c->numNeighbors, &c->localOffsets);CHKERRQ(ierr); 68 ierr = PetscMalloc1(c->numNeighbors, &c->fillCount);CHKERRQ(ierr); 69 ierr = PetscMalloc1(c->numNeighbors, &c->remoteOffsets);CHKERRQ(ierr); 70 ierr = PetscMalloc1(c->numNeighbors-1, &c->request);CHKERRQ(ierr); 71 ierr = PetscMalloc1(c->numNeighbors-1, &c->status);CHKERRQ(ierr); 72 PetscFunctionReturn(0); 73 } 74 75 #undef __FUNCT__ 76 #define __FUNCT__ "CharacteristicCreate_DA" 77 PETSC_EXTERN PetscErrorCode CharacteristicCreate_DA(Characteristic c) 78 { 79 Characteristic_DA *da; 80 PetscErrorCode ierr; 81 82 PetscFunctionBegin; 83 ierr = PetscNew(&da);CHKERRQ(ierr); 84 ierr = PetscMemzero(da, sizeof(Characteristic_DA));CHKERRQ(ierr); 85 ierr = PetscLogObjectMemory((PetscObject)c, sizeof(Characteristic_DA));CHKERRQ(ierr); 86 c->data = (void*) da; 87 88 c->ops->setup = CharacteristicSetUp_DA; 89 c->ops->destroy = CharacteristicDestroy_DA; 90 c->ops->view = CharacteristicView_DA; 91 92 da->dummy = 0; 93 PetscFunctionReturn(0); 94 } 95 96 #undef __FUNCT__ 97 #define __FUNCT__ "DMDAMapCoordsToPeriodicDomain" 98 /* ----------------------------------------------------------------------------- 99 Checks for periodicity of a DM and Maps points outside of a domain back onto the domain 100 using appropriate periodicity. At the moment assumes only a 2-D DMDA. 101 ----------------------------------------------------------------------------------------*/ 102 PetscErrorCode DMDAMapCoordsToPeriodicDomain(DM da, PetscScalar *x, PetscScalar *y) 103 { 104 DMBoundaryType bx, by; 105 PetscInt dim, gx, gy; 106 PetscErrorCode ierr; 107 108 PetscFunctionBegin; 109 ierr = DMDAGetInfo(da, &dim, &gx, &gy, 0, 0, 0, 0, 0, 0, &bx, &by, 0, 0); 110 111 if (bx == DM_BOUNDARY_PERIODIC) { 112 while (*x >= (PetscScalar)gx) *x -= (PetscScalar)gx; 113 while (*x < 0.0) *x += (PetscScalar)gx; 114 } 115 if (by == DM_BOUNDARY_PERIODIC) { 116 while (*y >= (PetscScalar)gy) *y -= (PetscScalar)gy; 117 while (*y < 0.0) *y += (PetscScalar)gy; 118 } 119 PetscFunctionReturn(ierr); 120 } 121