示例#1
0
PetscErrorCode CreateTensorProductHybrid_2D(MPI_Comm comm, PetscInt testNum, DM *dm)
{
  DM             idm = NULL, hdm = NULL;
  DMLabel        faultLabel, hybridLabel;
  PetscInt       p;
  PetscMPIInt    rank;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
  if (!rank) {
    PetscInt    numPoints[2]        = {6, 2};
    PetscInt    coneSize[8]         = {4, 4, 0, 0, 0, 0, 0, 0};
    PetscInt    cones[8]            = {2, 3, 4, 5,  3, 6, 7, 4,};
    PetscInt    coneOrientations[8] = {0, 0, 0, 0,  0, 0, 0, 0};
    PetscScalar vertexCoords[12]    = {-1.0, -0.5,  0.0, -0.5,  0.0, 0.5,  -1.0, 0.5,  1.0, -0.5,  1.0, 0.5};
    PetscInt    faultPoints[2]      = {3, 4};

    ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
    for(p = 0; p < 2; ++p) {ierr = DMSetLabelValue(*dm, "fault", faultPoints[p], 1);CHKERRQ(ierr);}
    ierr = DMPlexCheckSymmetry(*dm);CHKERRQ(ierr);
    ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
    ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
    ierr = DMPlexCheckSymmetry(idm);CHKERRQ(ierr);
    ierr = DMGetLabel(*dm, "fault", &faultLabel);CHKERRQ(ierr);
    ierr = DMPlexCreateHybridMesh(idm, faultLabel, &hybridLabel, &hdm);CHKERRQ(ierr);
    ierr = DMLabelDestroy(&hybridLabel);CHKERRQ(ierr);
  } else {
    PetscInt numPoints[3] = {0, 0, 0};

    ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, NULL, NULL, NULL, NULL);CHKERRQ(ierr);
    ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
    ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
    ierr = DMPlexCreateHybridMesh(idm, NULL, NULL, &hdm);CHKERRQ(ierr);
  }
  ierr = DMDestroy(&idm);CHKERRQ(ierr);
  ierr = DMDestroy(dm);CHKERRQ(ierr);
  *dm  = hdm;
  PetscFunctionReturn(0);
}
示例#2
0
文件: ex9.c 项目: tom-klotz/petsc
static PetscErrorCode CreateMesh(MPI_Comm comm, AppCtx *user, DM *newdm)
{
  PetscInt       dim         = user->dim;
  PetscBool      cellSimplex = user->cellSimplex;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  switch (dim) {
  case 2:
    if (cellSimplex) {
      ierr = CreateSimplex_2D(comm, newdm);CHKERRQ(ierr);
    } else {
      ierr = CreateQuad_2D(comm, newdm);CHKERRQ(ierr);
    }
    break;
  case 3:
    if (cellSimplex) {
      ierr = CreateSimplex_3D(comm, newdm);CHKERRQ(ierr);
    } else {
      ierr = CreateHex_3D(comm, newdm);CHKERRQ(ierr);
    }
    break;
  default:
    SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make meshes for dimension %d", dim);
  }
  if (user->refinementLimit > 0.0) {
    DM rdm;
    const char *name;

    ierr = DMPlexSetRefinementUniform(*newdm, PETSC_FALSE);CHKERRQ(ierr);
    ierr = DMPlexSetRefinementLimit(*newdm, user->refinementLimit);CHKERRQ(ierr);
    ierr = DMRefine(*newdm, PETSC_COMM_SELF, &rdm);CHKERRQ(ierr);
    ierr = PetscObjectGetName((PetscObject) *newdm, &name);CHKERRQ(ierr);
    ierr = PetscObjectSetName((PetscObject)    rdm,  name);CHKERRQ(ierr);
    ierr = DMDestroy(newdm);CHKERRQ(ierr);
    *newdm = rdm;
  }
  if (user->interpolate) {
    DM idm = NULL;
    const char *name;

    ierr = DMPlexInterpolate(*newdm, &idm);CHKERRQ(ierr);
    ierr = PetscObjectGetName((PetscObject) *newdm, &name);CHKERRQ(ierr);
    ierr = PetscObjectSetName((PetscObject)    idm,  name);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*newdm, idm);CHKERRQ(ierr);
    ierr = DMDestroy(newdm);CHKERRQ(ierr);
    *newdm = idm;
  }
  ierr = DMSetFromOptions(*newdm);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
示例#3
0
PetscErrorCode CreateTensorProduct_3D(MPI_Comm comm, PetscInt testNum, DM *dm)
{
  DM             idm = NULL;
  PetscMPIInt    rank;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
  if (!rank) {
    switch (testNum) {
    case 0:
    {
      PetscInt    numPoints[2]         = {12, 2};
      PetscInt    coneSize[14]         = {8, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
      PetscInt    cones[16]            = {2, 3, 4, 5, 6, 7, 8, 9,  5, 4, 10, 11, 7, 12, 13, 8};
      PetscInt    coneOrientations[16] = {0, 0, 0, 0, 0, 0, 0, 0,  0, 0,  0,  0, 0,  0,  0, 0};
      PetscScalar vertexCoords[36]     = {-1.0, -0.5, -0.5,  -1.0,  0.5, -0.5,  0.0,  0.5, -0.5,   0.0, -0.5, -0.5,
                                          -1.0, -0.5,  0.5,   0.0, -0.5,  0.5,  0.0,  0.5,  0.5,  -1.0,  0.5,  0.5,
                                          1.0,  0.5, -0.5,   1.0, -0.5, -0.5,  1.0, -0.5,  0.5,   1.0,  0.5,  0.5};

      ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
    }
    break;
    case 1:
    {
      PetscInt    numPoints[2]        = {8, 1};
      PetscInt    coneSize[9]         = {8, 0, 0, 0, 0, 0, 0, 0, 0};
      PetscInt    cones[8]            = {1, 2, 3, 4, 5, 6, 7, 8};
      PetscInt    coneOrientations[8] = {0, 0, 0, 0, 0, 0, 0, 0};
      PetscScalar vertexCoords[24]    = {-1.0, -1.0, -1.0,  -1.0,  1.0, -1.0,  1.0,  1.0, -1.0,   1.0, -1.0, -1.0,
                                         -1.0, -1.0,  1.0,   1.0, -1.0,  1.0,  1.0,  1.0,  1.0,  -1.0,  1.0,  1.0};

      ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
    }
    break;
    default: SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "No test mesh %d", testNum);
    }
  } else {
    PetscInt numPoints[4] = {0, 0, 0, 0};

    ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, NULL, NULL, NULL, NULL);CHKERRQ(ierr);
  }
  ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
  ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
  ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
  ierr = DMDestroy(dm);CHKERRQ(ierr);
  *dm  = idm;
  PetscFunctionReturn(0);
}
示例#4
0
文件: ex4.c 项目: petsc/petsc
PetscErrorCode CreateMesh(MPI_Comm comm, AppCtx *user, DM *dm)
{
  PetscInt       dim         = user->dim;
  PetscBool      cellHybrid  = user->cellHybrid;
  PetscBool      cellSimplex = user->cellSimplex;
  PetscMPIInt    rank, size;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
  ierr = MPI_Comm_size(comm, &size);CHKERRQ(ierr);
  ierr = DMCreate(comm, dm);CHKERRQ(ierr);
  ierr = DMSetType(*dm, DMPLEX);CHKERRQ(ierr);
  ierr = DMSetDimension(*dm, dim);CHKERRQ(ierr);
  switch (dim) {
  case 1:
    if (cellHybrid) SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make hybrid meshes for dimension %d", dim);
    ierr = CreateSimplex_1D(comm, dm);CHKERRQ(ierr);
    break;
  case 2:
    if (cellSimplex) {
      if (cellHybrid) {
        ierr = CreateSimplexHybrid_2D(comm, user->testNum, dm);CHKERRQ(ierr);
      } else {
        ierr = CreateSimplex_2D(comm, dm);CHKERRQ(ierr);
      }
    } else {
      if (cellHybrid) {
        ierr = CreateTensorProductHybrid_2D(comm, user->testNum, dm);CHKERRQ(ierr);
      } else {
        ierr = CreateTensorProduct_2D(comm, user->testNum, dm);CHKERRQ(ierr);
      }
    }
    break;
  case 3:
    if (cellSimplex) {
      if (cellHybrid) {
        ierr = CreateSimplexHybrid_3D(comm, user->testNum, dm);CHKERRQ(ierr);
      } else {
        ierr = CreateSimplex_3D(comm, user->testNum, dm);CHKERRQ(ierr);
      }
    } else {
      if (cellHybrid) {
        ierr = CreateTensorProductHybrid_3D(comm, user->testNum, dm);CHKERRQ(ierr);
      } else {
        ierr = CreateTensorProduct_3D(comm, user->testNum, dm);CHKERRQ(ierr);
      }
    }
    break;
  default:
    SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make meshes for dimension %d", dim);
  }
  if (user->testPartition && size > 1) {
    PetscPartitioner part;
    PetscInt  *sizes  = NULL;
    PetscInt  *points = NULL;

    if (!rank) {
      if (dim == 2 && cellSimplex && !cellHybrid && size == 2) {
        switch (user->testNum) {
        case 0: {
          PetscInt triSizes_p2[2]  = {1, 1};
          PetscInt triPoints_p2[2] = {0, 1};

          ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  triSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, triPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        default:
          SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for triangular mesh on 2 procs", user->testNum);
        }
      } else if (dim == 2 && cellSimplex && cellHybrid && size == 2) {
        switch (user->testNum) {
        case 0: {
          PetscInt triSizes_p2[2]  = {1, 2};
          PetscInt triPoints_p2[3] = {0, 1, 2};

          ierr = PetscMalloc2(2, &sizes, 3, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  triSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, triPoints_p2, 3 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        default:
          SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for triangular hybrid mesh on 2 procs", user->testNum);
        }
      } else if (dim == 2 && !cellSimplex && !cellHybrid && size == 2) {
        switch (user->testNum) {
        case 0: {
          PetscInt quadSizes_p2[2]  = {1, 1};
          PetscInt quadPoints_p2[2] = {0, 1};

          ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  quadSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, quadPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        default:
          SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for quadrilateral mesh on 2 procs", user->testNum);
        }
      } else if (dim == 2 && !cellSimplex && cellHybrid && size == 2) {
        switch (user->testNum) {
        case 0: {
          PetscInt quadSizes_p2[2]  = {1, 2};
          PetscInt quadPoints_p2[3] = {0, 1, 2};

          ierr = PetscMalloc2(2, &sizes, 3, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  quadSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, quadPoints_p2, 3 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        default:
          SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for quadrilateral hybrid mesh on 2 procs", user->testNum);
        }
      } else if (dim == 3 && cellSimplex && !cellHybrid && size == 2) {
        switch (user->testNum) {
        case 0: {
          PetscInt tetSizes_p2[2]  = {1, 1};
          PetscInt tetPoints_p2[2] = {0, 1};

          ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  tetSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, tetPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        case 1: {
          PetscInt tetSizes_p2[2]  = {1, 1};
          PetscInt tetPoints_p2[2] = {0, 1};

          ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  tetSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, tetPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        default:
          SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for tetrahedral mesh on 2 procs", user->testNum);
        }
      } else if (dim == 3 && cellSimplex && cellHybrid && size == 2) {
        switch (user->testNum) {
        case 0: {
          PetscInt tetSizes_p2[2]  = {1, 2};
          PetscInt tetPoints_p2[3] = {0, 1, 2};

          ierr = PetscMalloc2(2, &sizes, 3, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  tetSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, tetPoints_p2, 3 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        case 1: {
          PetscInt tetSizes_p2[2]  = {3, 4};
          PetscInt tetPoints_p2[7] = {0, 3, 5, 1, 2, 4, 6};

          ierr = PetscMalloc2(2, &sizes, 7, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  tetSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, tetPoints_p2, 7 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        default:
          SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for tetrahedral hybrid mesh on 2 procs", user->testNum);
        }
      } else if (dim == 3 && !cellSimplex && !cellHybrid && size == 2) {
        switch (user->testNum) {
        case 0: {
          PetscInt hexSizes_p2[2]  = {1, 1};
          PetscInt hexPoints_p2[2] = {0, 1};

          ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  hexSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, hexPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        default:
          SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for hexahedral mesh on 2 procs", user->testNum);
        }
      } else if (dim == 3 && !cellSimplex && cellHybrid && size == 2) {
        switch (user->testNum) {
        case 0: {
          PetscInt hexSizes_p2[2]  = {1, 1};
          PetscInt hexPoints_p2[2] = {0, 1};

          ierr = PetscMalloc2(2, &sizes, 2, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  hexSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, hexPoints_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        case 1: {
          PetscInt hexSizes_p2[2]  = {5, 4};
          PetscInt hexPoints_p2[9] = {3, 4, 5, 7, 8, 0, 1, 2, 6};

          ierr = PetscMalloc2(2, &sizes, 9, &points);CHKERRQ(ierr);
          ierr = PetscMemcpy(sizes,  hexSizes_p2, 2 * sizeof(PetscInt));CHKERRQ(ierr);
          ierr = PetscMemcpy(points, hexPoints_p2, 9 * sizeof(PetscInt));CHKERRQ(ierr);break;}
        default:
          SETERRQ1(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test number %d for hexahedral hybrid mesh on 2 procs", user->testNum);
        }
      } else SETERRQ(PETSC_COMM_WORLD, PETSC_ERR_ARG_WRONG, "Could not find matching test partition");
    }
    ierr = DMPlexGetPartitioner(*dm, &part);CHKERRQ(ierr);
    ierr = PetscPartitionerSetType(part, PETSCPARTITIONERSHELL);CHKERRQ(ierr);
    ierr = PetscPartitionerShellSetPartition(part, size, sizes, points);CHKERRQ(ierr);
    ierr = PetscFree2(sizes, points);CHKERRQ(ierr);
  } else {
    PetscPartitioner part;

    ierr = DMPlexGetPartitioner(*dm,&part);CHKERRQ(ierr);
    ierr = PetscPartitionerSetFromOptions(part);CHKERRQ(ierr);
  }
  {
    DM pdm = NULL;

    ierr = DMPlexDistribute(*dm, 0, NULL, &pdm);CHKERRQ(ierr);
    if (pdm) {
      ierr = DMViewFromOptions(pdm, NULL, "-dm_view");CHKERRQ(ierr);
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = pdm;
    }
  }
  ierr = DMSetFromOptions(*dm);CHKERRQ(ierr);
  if (user->simplex2tensor) {
    DM rdm = NULL;
    ierr = DMPlexSetRefinementUniform(*dm, PETSC_TRUE);CHKERRQ(ierr);
    ierr = DMPlexRefineSimplexToTensor(*dm, &rdm);CHKERRQ(ierr);
    if (rdm) {
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = rdm;
    }
    user->cellSimplex = PETSC_FALSE;
  }
  if (user->uninterpolate || user->reinterpolate) {
    DM udm = NULL;

    ierr = DMPlexUninterpolate(*dm, &udm);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, udm);CHKERRQ(ierr);
    ierr = DMDestroy(dm);CHKERRQ(ierr);
    *dm  = udm;
  }
  if (user->reinterpolate) {
    DM idm = NULL;

    ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
    ierr = DMDestroy(dm);CHKERRQ(ierr);
    *dm  = idm;
  }
  ierr = PetscObjectSetName((PetscObject) *dm, "Hybrid Mesh");CHKERRQ(ierr);
  ierr = DMViewFromOptions(*dm, NULL, "-dm_view");CHKERRQ(ierr);
  ierr = PetscObjectSetOptionsPrefix((PetscObject) *dm, "hyb_");CHKERRQ(ierr);
  ierr = DMSetFromOptions(*dm);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
示例#5
0
文件: ex8.c 项目: feelpp/debian-petsc
PetscErrorCode TestTriangle(MPI_Comm comm, PetscBool interpolate, PetscBool transform)
{
  DM             dm;
  PetscRandom    r, ang, ang2;
  PetscInt       dim, t;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  /* Create reference triangle */
  dim  = 2;
  ierr = DMCreate(comm, &dm);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) dm, "triangle");CHKERRQ(ierr);
  ierr = DMSetType(dm, DMPLEX);CHKERRQ(ierr);
  ierr = DMPlexSetDimension(dm, dim);CHKERRQ(ierr);
  {
    PetscInt    numPoints[2]        = {3, 1};
    PetscInt    coneSize[4]         = {3, 0, 0, 0};
    PetscInt    cones[3]            = {1, 2, 3};
    PetscInt    coneOrientations[3] = {0, 0, 0};
    PetscScalar vertexCoords[6]     = {-1.0, -1.0, 1.0, -1.0, -1.0, 1.0};

    ierr = DMPlexCreateFromDAG(dm, 1, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
    if (interpolate) {
      DM idm;

      ierr = DMPlexInterpolate(dm, &idm);CHKERRQ(ierr);
      ierr = PetscObjectSetName((PetscObject) idm, "triangle");CHKERRQ(ierr);
      ierr = DMPlexCopyCoordinates(dm, idm);CHKERRQ(ierr);
      ierr = DMDestroy(&dm);CHKERRQ(ierr);
      dm   = idm;
    }
    ierr = DMSetFromOptions(dm);CHKERRQ(ierr);
  }
  /* Check reference geometry: determinant is scaled by reference volume (2.0) */
  {
    PetscReal v0Ex[2]       = {-1.0, -1.0};
    PetscReal JEx[4]        = {1.0, 0.0, 0.0, 1.0};
    PetscReal invJEx[4]     = {1.0, 0.0, 0.0, 1.0};
    PetscReal detJEx        = 1.0;
    PetscReal centroidEx[2] = {-0.333333333333, -0.333333333333};
    PetscReal normalEx[2]   = {0.0, 0.0};
    PetscReal volEx         = 2.0;

    ierr = CheckFEMGeometry(dm, 0, dim, v0Ex, JEx, invJEx, detJEx);CHKERRQ(ierr);
    if (interpolate) {ierr = CheckFVMGeometry(dm, 0, dim, centroidEx, normalEx, volEx);CHKERRQ(ierr);}
  }
  /* Check random triangles: rotate, scale, then translate */
  if (transform) {
    ierr = PetscRandomCreate(PETSC_COMM_SELF, &r);CHKERRQ(ierr);
    ierr = PetscRandomSetFromOptions(r);CHKERRQ(ierr);
    ierr = PetscRandomSetInterval(r, 0.0, 10.0);CHKERRQ(ierr);
    ierr = PetscRandomCreate(PETSC_COMM_SELF, &ang);CHKERRQ(ierr);
    ierr = PetscRandomSetFromOptions(ang);CHKERRQ(ierr);
    ierr = PetscRandomSetInterval(ang, 0.0, 2*PETSC_PI);CHKERRQ(ierr);
    for (t = 0; t < 100; ++t) {
      PetscScalar vertexCoords[6] = {-1.0, -1.0, 1.0, -1.0, -1.0, 1.0}, trans[2];
      PetscReal   v0Ex[2]         = {-1.0, -1.0};
      PetscReal   JEx[4]          = {1.0, 0.0, 0.0, 1.0}, R[4], rot[2], rotM[4];
      PetscReal   invJEx[4]       = {1.0, 0.0, 0.0, 1.0};
      PetscReal   detJEx          = 1.0, scale, phi;
      PetscReal   centroidEx[2]   = {-0.333333333333, -0.333333333333};
      PetscReal   normalEx[2]     = {0.0, 0.0};
      PetscReal   volEx           = 2.0;
      PetscInt    d, e, f, p;

      ierr = PetscRandomGetValueReal(r, &scale);CHKERRQ(ierr);
      ierr = PetscRandomGetValueReal(ang, &phi);CHKERRQ(ierr);
      R[0] = cos(phi); R[1] = -sin(phi);
      R[2] = sin(phi); R[3] =  cos(phi);
      for (p = 0; p < 3; ++p) {
        for (d = 0; d < dim; ++d) {
          for (e = 0, rot[d] = 0.0; e < dim; ++e) {
            rot[d] += R[d*dim+e] * vertexCoords[p*dim+e];
          }
        }
        for (d = 0; d < dim; ++d) vertexCoords[p*dim+d] = rot[d];
      }
      for (d = 0; d < dim; ++d) {
        for (e = 0, rot[d] = 0.0; e < dim; ++e) {
          rot[d] += R[d*dim+e] * centroidEx[e];
        }
      }
      for (d = 0; d < dim; ++d) centroidEx[d] = rot[d];
      for (d = 0; d < dim; ++d) {
        for (e = 0; e < dim; ++e) {
          for (f = 0, rotM[d*dim+e] = 0.0; f < dim; ++f) {
            rotM[d*dim+e] += R[d*dim+f] * JEx[f*dim+e];
          }
        }
      }
      for (d = 0; d < dim; ++d) {
        for (e = 0; e < dim; ++e) {
          JEx[d*dim+e] = rotM[d*dim+e];
        }
      }
      for (d = 0; d < dim; ++d) {
        for (e = 0; e < dim; ++e) {
          for (f = 0, rotM[d*dim+e] = 0.0; f < dim; ++f) {
            rotM[d*dim+e] += invJEx[d*dim+f] * R[e*dim+f];
          }
        }
      }
      for (d = 0; d < dim; ++d) {
        for (e = 0; e < dim; ++e) {
          invJEx[d*dim+e] = rotM[d*dim+e];
        }
      }
      for (d = 0; d < dim; ++d) {
        ierr = PetscRandomGetValueReal(r, &trans[d]);CHKERRQ(ierr);
        for (p = 0; p < 3; ++p) {
          vertexCoords[p*dim+d] *= scale;
          vertexCoords[p*dim+d] += trans[d];
        }
        v0Ex[d] = vertexCoords[d];
        for (e = 0; e < dim; ++e) {
          JEx[d*dim+e]    *= scale;
          invJEx[d*dim+e] /= scale;
        }
        detJEx *= scale;
        centroidEx[d] *= scale;
        centroidEx[d] += trans[d];
        volEx *= scale;
      }
      ierr = ChangeCoordinates(dm, dim, vertexCoords);CHKERRQ(ierr);
      ierr = CheckFEMGeometry(dm, 0, dim, v0Ex, JEx, invJEx, detJEx);CHKERRQ(ierr);
      if (interpolate) {ierr = CheckFVMGeometry(dm, 0, dim, centroidEx, normalEx, volEx);CHKERRQ(ierr);}
    }
    ierr = PetscRandomDestroy(&r);CHKERRQ(ierr);
    ierr = PetscRandomDestroy(&ang);CHKERRQ(ierr);
  }
  /* Move to 3D: Check reference geometry: determinant is scaled by reference volume (2.0) */
  dim = 3;
  {
    PetscScalar vertexCoords[9] = {-1.0, -1.0, 0.0, 1.0, -1.0, 0.0, -1.0, 1.0, 0.0};
    PetscReal v0Ex[3]       = {-1.0, -1.0, 0.0};
    PetscReal JEx[9]        = {1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0};
    PetscReal invJEx[9]     = {1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0};
    PetscReal detJEx        = 1.0;
    PetscReal centroidEx[3] = {-0.333333333333, -0.333333333333, 0.0};
    PetscReal normalEx[3]   = {0.0, 0.0, 1.0};
    PetscReal volEx         = 2.0;

    ierr = ChangeCoordinates(dm, dim, vertexCoords);CHKERRQ(ierr);
    ierr = CheckFEMGeometry(dm, 0, dim, v0Ex, JEx, invJEx, detJEx);CHKERRQ(ierr);
    if (interpolate) {ierr = CheckFVMGeometry(dm, 0, dim, centroidEx, normalEx, volEx);CHKERRQ(ierr);}
  }
  /* Rotated reference element */
  {
    PetscScalar vertexCoords[9] = {0.0, -1.0, -1.0, 0.0, 1.0, -1.0, 0.0, -1.0, 1.0};
    PetscReal   v0Ex[3]         = {0.0, -1.0, -1.0};
    PetscReal   JEx[9]          = {0.0, 0.0, 1.0, 1.0, 0.0, 0.0, 0.0, 1.0, 0.0};
    PetscReal   invJEx[9]       = {0.0, 1.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0};
    PetscReal   detJEx          = 1.0;
    PetscReal   centroidEx[3]   = {0.0, -0.333333333333, -0.333333333333};
    PetscReal   normalEx[3]     = {1.0, 0.0, 0.0};
    PetscReal   volEx           = 2.0;

    ierr = ChangeCoordinates(dm, dim, vertexCoords);CHKERRQ(ierr);
    ierr = CheckFEMGeometry(dm, 0, dim, v0Ex, JEx, invJEx, detJEx);CHKERRQ(ierr);
    if (interpolate) {ierr = CheckFVMGeometry(dm, 0, dim, centroidEx, normalEx, volEx);CHKERRQ(ierr);}
  }
  /* Check random triangles: scale, translate, then rotate */
  if (transform) {
    ierr = PetscRandomCreate(PETSC_COMM_SELF, &r);CHKERRQ(ierr);
    ierr = PetscRandomSetFromOptions(r);CHKERRQ(ierr);
    ierr = PetscRandomSetInterval(r, 0.0, 10.0);CHKERRQ(ierr);
    ierr = PetscRandomCreate(PETSC_COMM_SELF, &ang);CHKERRQ(ierr);
    ierr = PetscRandomSetFromOptions(ang);CHKERRQ(ierr);
    ierr = PetscRandomSetInterval(ang, 0.0, 2*PETSC_PI);CHKERRQ(ierr);
    ierr = PetscRandomCreate(PETSC_COMM_SELF, &ang2);CHKERRQ(ierr);
    ierr = PetscRandomSetFromOptions(ang2);CHKERRQ(ierr);
    ierr = PetscRandomSetInterval(ang2, 0.0, PETSC_PI);CHKERRQ(ierr);
    for (t = 0; t < 100; ++t) {
      PetscScalar vertexCoords[9] = {-1.0, -1.0, 0.0, 1.0, -1.0, 0.0, -1.0, 1.0, 0.0}, trans[3];
      PetscReal   v0Ex[3]         = {-1.0, -1.0, 0.0};
      PetscReal   JEx[9]          = {1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0}, R[9], rot[3], rotM[9];
      PetscReal   invJEx[9]       = {1.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 1.0};
      PetscReal   detJEx          = 1.0, scale, phi, theta, psi = 0.0;
      PetscReal   centroidEx[3]   = {-0.333333333333, -0.333333333333, 0.0};
      PetscReal   normalEx[3]     = {0.0, 0.0, 1.0};
      PetscReal   volEx           = 2.0;
      PetscInt    d, e, f, p;

      ierr = PetscRandomGetValueReal(r, &scale);CHKERRQ(ierr);
      ierr = PetscRandomGetValueReal(ang, &phi);CHKERRQ(ierr);
      ierr = PetscRandomGetValueReal(ang2, &theta);CHKERRQ(ierr);
      for (d = 0; d < dim; ++d) {
        ierr = PetscRandomGetValueReal(r, &trans[d]);CHKERRQ(ierr);
        for (p = 0; p < 3; ++p) {
          vertexCoords[p*dim+d] *= scale;
          vertexCoords[p*dim+d] += trans[d];
        }
        centroidEx[d] *= scale;
        centroidEx[d] += trans[d];
        for (e = 0; e < dim-1; ++e) {
          JEx[d*dim+e]    *= scale;
          invJEx[d*dim+e] /= scale;
        }
        if (d < dim-1) {
          detJEx *= scale;
          volEx  *= scale;
        }
      }
      R[0] = cos(theta)*cos(psi); R[1] = sin(phi)*sin(theta)*cos(psi) - cos(phi)*sin(psi); R[2] = sin(phi)*sin(psi) + cos(phi)*sin(theta)*cos(psi);
      R[3] = cos(theta)*sin(psi); R[4] = cos(phi)*cos(psi) + sin(phi)*sin(theta)*sin(psi); R[5] = cos(phi)*sin(theta)*sin(psi) - sin(phi)*cos(psi);
      R[6] = -sin(theta);         R[7] = sin(phi)*cos(theta);                              R[8] = cos(phi)*cos(theta);
      for (p = 0; p < 3; ++p) {
        for (d = 0; d < dim; ++d) {
          for (e = 0, rot[d] = 0.0; e < dim; ++e) {
            rot[d] += R[d*dim+e] * vertexCoords[p*dim+e];
          }
        }
        for (d = 0; d < dim; ++d) vertexCoords[p*dim+d] = rot[d];
      }
      for (d = 0; d < dim; ++d) {
        for (e = 0, rot[d] = 0.0; e < dim; ++e) {
          rot[d] += R[d*dim+e] * centroidEx[e];
        }
      }
      for (d = 0; d < dim; ++d) centroidEx[d] = rot[d];
      for (d = 0; d < dim; ++d) {
        for (e = 0, rot[d] = 0.0; e < dim; ++e) {
          rot[d] += R[d*dim+e] * normalEx[e];
        }
      }
      for (d = 0; d < dim; ++d) normalEx[d] = rot[d];
      for (d = 0; d < dim; ++d) {
        v0Ex[d] = vertexCoords[d];
        for (e = 0; e < dim; ++e) {
          for (f = 0, rotM[d*dim+e] = 0.0; f < dim; ++f) {
            rotM[d*dim+e] += R[d*dim+f] * JEx[f*dim+e];
          }
        }
      }
      for (d = 0; d < dim; ++d) {
        for (e = 0; e < dim; ++e) {
          JEx[d*dim+e] = rotM[d*dim+e];
        }
      }
      for (d = 0; d < dim; ++d) {
        for (e = 0; e < dim; ++e) {
          for (f = 0, rotM[d*dim+e] = 0.0; f < dim; ++f) {
            rotM[d*dim+e] += invJEx[d*dim+f] * R[e*dim+f];
          }
        }
      }
      for (d = 0; d < dim; ++d) {
        for (e = 0; e < dim; ++e) {
          invJEx[d*dim+e] = rotM[d*dim+e];
        }
      }
      ierr = ChangeCoordinates(dm, dim, vertexCoords);CHKERRQ(ierr);
      ierr = CheckFEMGeometry(dm, 0, dim, v0Ex, JEx, invJEx, detJEx);CHKERRQ(ierr);
      if (interpolate) {ierr = CheckFVMGeometry(dm, 0, dim, centroidEx, normalEx, volEx);CHKERRQ(ierr);}
    }
    ierr = PetscRandomDestroy(&r);CHKERRQ(ierr);
    ierr = PetscRandomDestroy(&ang);CHKERRQ(ierr);
    ierr = PetscRandomDestroy(&ang2);CHKERRQ(ierr);
  }
  /* Cleanup */
  ierr = DMDestroy(&dm);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
示例#6
0
PETSC_EXTERN void PETSC_STDCALL  dmplexcopycoordinates_(DM dmA,DM dmB, int *__ierr ){
*__ierr = DMPlexCopyCoordinates(
	(DM)PetscToPointer((dmA) ),
	(DM)PetscToPointer((dmB) ));
}
示例#7
0
PetscErrorCode CreateMesh(MPI_Comm comm, PetscInt testNum, AppCtx *user, DM *dm)
{
  PetscInt       dim          = user->dim;
  PetscBool      cellSimplex  = user->cellSimplex;
  PetscBool      useGenerator = user->useGenerator;
  const char    *filename     = user->filename;
  size_t         len;
  PetscMPIInt    rank;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
  ierr = PetscStrlen(filename, &len);CHKERRQ(ierr);
  if (len) {
    ierr = DMPlexCreateFromFile(comm, filename, PETSC_FALSE, dm);CHKERRQ(ierr);
    ierr = DMGetDimension(*dm, &dim);CHKERRQ(ierr);
  } else if (useGenerator) {
    if (cellSimplex) {
      ierr = DMPlexCreateBoxMesh(comm, dim, dim == 2 ? 2 : 1, PETSC_FALSE, dm);CHKERRQ(ierr);
    } else {
      const PetscInt cells[3] = {2, 2, 2};

      ierr = DMPlexCreateHexBoxMesh(comm, dim, cells, PETSC_FALSE, PETSC_FALSE, PETSC_FALSE, dm);CHKERRQ(ierr);
    }
  } else {
    ierr = DMCreate(comm, dm);CHKERRQ(ierr);
    ierr = DMSetType(*dm, DMPLEX);CHKERRQ(ierr);
    ierr = DMSetDimension(*dm, dim);CHKERRQ(ierr);
    switch (dim) {
    case 2:
      if (cellSimplex) {
        ierr = CreateSimplex_2D(comm, *dm);CHKERRQ(ierr);
      } else {
        ierr = CreateQuad_2D(comm, testNum, *dm);CHKERRQ(ierr);
      }
      break;
    case 3:
      if (cellSimplex) {
        ierr = CreateSimplex_3D(comm, *dm);CHKERRQ(ierr);
      } else {
        ierr = CreateHex_3D(comm, *dm);CHKERRQ(ierr);
      }
      break;
    default:
      SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make meshes for dimension %d", dim);
    }
  }
  {
    DM interpolatedMesh = NULL;

    ierr = CheckMesh(*dm, user);CHKERRQ(ierr);
    ierr = DMPlexInterpolate(*dm, &interpolatedMesh);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, interpolatedMesh);CHKERRQ(ierr);
    ierr = CompareCones(*dm, interpolatedMesh);CHKERRQ(ierr);
    ierr = DMDestroy(dm);CHKERRQ(ierr);
    *dm  = interpolatedMesh;
  }
  {
    DM distributedMesh = NULL;

    /* Distribute mesh over processes */
    ierr = DMPlexDistribute(*dm, 0, NULL, &distributedMesh);CHKERRQ(ierr);
    if (distributedMesh) {
      ierr = DMViewFromOptions(distributedMesh, NULL, "-dm_view");CHKERRQ(ierr);
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = distributedMesh;
    }
  }
  ierr = PetscObjectSetName((PetscObject) *dm, "Interpolated Mesh");CHKERRQ(ierr);
  ierr = DMViewFromOptions(*dm, NULL, "-dm_view");CHKERRQ(ierr);
  user->dm = *dm;
  PetscFunctionReturn(0);
}
示例#8
0
文件: ex7.c 项目: feelpp/debian-petsc
PetscErrorCode CreateMesh(MPI_Comm comm, PetscInt testNum, AppCtx *user, DM *dm)
{
  PetscInt       dim          = user->dim;
  PetscBool      cellSimplex  = user->cellSimplex;
  PetscBool      useGenerator = user->useGenerator;
  const char    *filename     = user->filename;
  const char    *partitioner  = "chaco";
  size_t         len;
  PetscMPIInt    rank;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
  ierr = PetscStrlen(filename, &len);CHKERRQ(ierr);
  if (len) {
#if defined(PETSC_HAVE_EXODUSII)
    int   CPU_word_size = 0, IO_word_size = 0, exoid = -1;
    float version;

    if (!rank) {
      exoid = ex_open(filename, EX_READ, &CPU_word_size, &IO_word_size, &version);
      if (exoid <= 0) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_LIB, "ex_open(\"%s\",...) did not return a valid file ID", filename);
    }
    ierr = DMPlexCreateExodus(comm, exoid, PETSC_FALSE, dm);CHKERRQ(ierr);
    if (!rank) {ierr = ex_close(exoid);CHKERRQ(ierr);}
    ierr = DMPlexGetDimension(*dm, &dim);CHKERRQ(ierr);
#else
    SETERRQ(comm, PETSC_ERR_SUP, "Loading meshes requires ExodusII support. Reconfigure using --download-exodusii");
#endif
  } else if (useGenerator) {
    if (cellSimplex) {
      ierr = DMPlexCreateBoxMesh(comm, dim, PETSC_FALSE, dm);CHKERRQ(ierr);
    } else {
      ierr = DMPlexCreateHexBoxMesh(comm, dim, PETSC_FALSE, dm);CHKERRQ(ierr);
    }
  } else {
    ierr = DMCreate(comm, dm);CHKERRQ(ierr);
    ierr = DMSetType(*dm, DMPLEX);CHKERRQ(ierr);
    ierr = DMPlexSetDimension(*dm, dim);CHKERRQ(ierr);
    switch (dim) {
    case 2:
      if (cellSimplex) {
        ierr = CreateSimplex_2D(comm, *dm);CHKERRQ(ierr);
      } else {
        ierr = CreateQuad_2D(comm, testNum, *dm);CHKERRQ(ierr);
      }
      break;
    case 3:
      if (cellSimplex) {
        ierr = CreateSimplex_3D(comm, *dm);CHKERRQ(ierr);
      } else {
        ierr = CreateHex_3D(comm, *dm);CHKERRQ(ierr);
      }
      break;
    default:
      SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "Cannot make meshes for dimension %d", dim);
    }
  }
  {
    DM interpolatedMesh = NULL;

    ierr = CheckMesh(*dm);CHKERRQ(ierr);
    ierr = DMPlexInterpolate(*dm, &interpolatedMesh);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, interpolatedMesh);CHKERRQ(ierr);
    ierr = CompareCones(*dm, interpolatedMesh);CHKERRQ(ierr);
    ierr = DMDestroy(dm);CHKERRQ(ierr);
    *dm  = interpolatedMesh;
  }
  {
    DM distributedMesh = NULL;

    /* Distribute mesh over processes */
    ierr = DMPlexDistribute(*dm, partitioner, 0, &distributedMesh);CHKERRQ(ierr);
    if (distributedMesh) {
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = distributedMesh;
    }
  }
  ierr     = PetscObjectSetName((PetscObject) *dm, "Interpolated Mesh");CHKERRQ(ierr);
  ierr     = DMSetFromOptions(*dm);CHKERRQ(ierr);
  user->dm = *dm;
  PetscFunctionReturn(0);
}
示例#9
0
文件: ex12.c 项目: placasse/petsc
int main(int argc, char **argv)
{
  DM             dm;          /* Problem specification */
  DM             dmAux;       /* Material specification */
  SNES           snes;        /* nonlinear solver */
  Vec            u,r;         /* solution, residual vectors */
  Mat            A,J;         /* Jacobian matrix */
  MatNullSpace   nullSpace;   /* May be necessary for Neumann conditions */
  AppCtx         user;        /* user-defined work context */
  JacActionCtx   userJ;       /* context for Jacobian MF action */
  PetscInt       its;         /* iterations for convergence */
  PetscReal      error = 0.0; /* L_2 error in the solution */
  PetscInt       numComponents;
  PetscErrorCode ierr;

  ierr = PetscInitialize(&argc, &argv, NULL, help);CHKERRQ(ierr);
  ierr = ProcessOptions(PETSC_COMM_WORLD, &user);CHKERRQ(ierr);
  ierr = SNESCreate(PETSC_COMM_WORLD, &snes);CHKERRQ(ierr);
  ierr = CreateMesh(PETSC_COMM_WORLD, &user, &dm);CHKERRQ(ierr);
  ierr = SNESSetDM(snes, dm);CHKERRQ(ierr);
  ierr = DMSetApplicationContext(dm, &user);CHKERRQ(ierr);

  user.fem.fe = user.fe;
  ierr = PetscFECreateDefault(dm, user.dim, 1, PETSC_TRUE, NULL, -1, &user.fe[0]);CHKERRQ(ierr);
  if (user.bcType != NEUMANN) {
    user.fem.feBd = NULL; user.feBd[0] = NULL;
  } else {
    user.fem.feBd = user.feBd;
    ierr = PetscFECreateDefault(dm, user.dim-1, 1, PETSC_TRUE, "bd_", -1, &user.feBd[0]);CHKERRQ(ierr);
  }
  ierr = PetscFEGetNumComponents(user.fe[0], &numComponents);CHKERRQ(ierr);
  ierr = PetscMalloc(NUM_FIELDS * sizeof(void (*)(const PetscReal[], PetscScalar *, void *)), &user.exactFuncs);CHKERRQ(ierr);
  ierr = SetupProblem(dm, &user);CHKERRQ(ierr);
  ierr = SetupSection(dm, &user);CHKERRQ(ierr);
  /* Setup Material */
  ierr = DMClone(dm, &dmAux);CHKERRQ(ierr);
  ierr = DMPlexCopyCoordinates(dm, dmAux);CHKERRQ(ierr);
  if (user.variableCoefficient != COEFF_FIELD) {
    user.fem.feAux = NULL; user.feAux[0] = NULL;
  } else {
    PetscQuadrature q;

    user.fem.feAux = user.feAux;
    ierr = PetscFECreateDefault(dmAux, user.dim, 1, PETSC_TRUE, "mat_", -1, &user.feAux[0]);CHKERRQ(ierr);
    ierr = PetscFEGetQuadrature(user.fe[0], &q);CHKERRQ(ierr);
    ierr = PetscFESetQuadrature(user.feAux[0], q);CHKERRQ(ierr);
  }
  ierr = SetupMaterialSection(dmAux, &user);CHKERRQ(ierr);
  ierr = SetupMaterial(dm, dmAux, &user);CHKERRQ(ierr);
  ierr = DMDestroy(&dmAux);CHKERRQ(ierr);

  ierr = DMCreateGlobalVector(dm, &u);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) u, "potential");CHKERRQ(ierr);
  ierr = VecDuplicate(u, &r);CHKERRQ(ierr);

  ierr = DMSetMatType(dm,MATAIJ);CHKERRQ(ierr);
  ierr = DMCreateMatrix(dm, &J);CHKERRQ(ierr);
  if (user.jacobianMF) {
    PetscInt M, m, N, n;

    ierr = MatGetSize(J, &M, &N);CHKERRQ(ierr);
    ierr = MatGetLocalSize(J, &m, &n);CHKERRQ(ierr);
    ierr = MatCreate(PETSC_COMM_WORLD, &A);CHKERRQ(ierr);
    ierr = MatSetSizes(A, m, n, M, N);CHKERRQ(ierr);
    ierr = MatSetType(A, MATSHELL);CHKERRQ(ierr);
    ierr = MatSetUp(A);CHKERRQ(ierr);
#if 0
    ierr = MatShellSetOperation(A, MATOP_MULT, (void (*)(void))FormJacobianAction);CHKERRQ(ierr);
#endif

    userJ.dm   = dm;
    userJ.J    = J;
    userJ.user = &user;

    ierr = DMCreateLocalVector(dm, &userJ.u);CHKERRQ(ierr);
    ierr = DMPlexProjectFunctionLocal(dm, user.fe, user.exactFuncs, NULL, INSERT_BC_VALUES, userJ.u);CHKERRQ(ierr);
    ierr = MatShellSetContext(A, &userJ);CHKERRQ(ierr);
  } else {
    A = J;
  }
  if (user.bcType == NEUMANN) {
    ierr = MatNullSpaceCreate(PetscObjectComm((PetscObject) dm), PETSC_TRUE, 0, NULL, &nullSpace);CHKERRQ(ierr);
    ierr = MatSetNullSpace(J, nullSpace);CHKERRQ(ierr);
    if (A != J) {
      ierr = MatSetNullSpace(A, nullSpace);CHKERRQ(ierr);
    }
  }

  ierr = DMSNESSetFunctionLocal(dm,  (PetscErrorCode (*)(DM,Vec,Vec,void*)) DMPlexComputeResidualFEM, &user);CHKERRQ(ierr);
  ierr = DMSNESSetJacobianLocal(dm,  (PetscErrorCode (*)(DM,Vec,Mat,Mat,void*)) DMPlexComputeJacobianFEM, &user);CHKERRQ(ierr);
  ierr = SNESSetJacobian(snes, A, J, NULL, NULL);CHKERRQ(ierr);

  ierr = SNESSetFromOptions(snes);CHKERRQ(ierr);

  ierr = DMPlexProjectFunction(dm, user.fe, user.exactFuncs, NULL, INSERT_ALL_VALUES, u);CHKERRQ(ierr);
  if (user.checkpoint) {
#if defined(PETSC_HAVE_HDF5)
    ierr = PetscViewerHDF5PushGroup(user.checkpoint, "/fields");CHKERRQ(ierr);
    ierr = VecLoad(u, user.checkpoint);CHKERRQ(ierr);
    ierr = PetscViewerHDF5PopGroup(user.checkpoint);CHKERRQ(ierr);
#endif
  }
  ierr = PetscViewerDestroy(&user.checkpoint);CHKERRQ(ierr);
  if (user.showInitial) {
    Vec lv;
    ierr = DMGetLocalVector(dm, &lv);CHKERRQ(ierr);
    ierr = DMGlobalToLocalBegin(dm, u, INSERT_VALUES, lv);CHKERRQ(ierr);
    ierr = DMGlobalToLocalEnd(dm, u, INSERT_VALUES, lv);CHKERRQ(ierr);
    ierr = DMPrintLocalVec(dm, "Local function", 1.0e-10, lv);CHKERRQ(ierr);
    ierr = DMRestoreLocalVector(dm, &lv);CHKERRQ(ierr);
  }
  if (user.runType == RUN_FULL) {
    void (*initialGuess[numComponents])(const PetscReal x[], PetscScalar *, void *ctx);
    PetscInt c;

    for (c = 0; c < numComponents; ++c) initialGuess[c] = zero;
    ierr = DMPlexProjectFunction(dm, user.fe, initialGuess, NULL, INSERT_VALUES, u);CHKERRQ(ierr);
    if (user.debug) {
      ierr = PetscPrintf(PETSC_COMM_WORLD, "Initial guess\n");CHKERRQ(ierr);
      ierr = VecView(u, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
    }
    ierr = SNESSolve(snes, NULL, u);CHKERRQ(ierr);
    ierr = SNESGetIterationNumber(snes, &its);CHKERRQ(ierr);
    ierr = PetscPrintf(PETSC_COMM_WORLD, "Number of SNES iterations = %D\n", its);CHKERRQ(ierr);
    ierr = DMPlexComputeL2Diff(dm, user.fe, user.exactFuncs, NULL, u, &error);CHKERRQ(ierr);
    if (error < 1.0e-11) {ierr = PetscPrintf(PETSC_COMM_WORLD, "L_2 Error: < 1.0e-11\n");CHKERRQ(ierr);}
    else                 {ierr = PetscPrintf(PETSC_COMM_WORLD, "L_2 Error: %g\n", error);CHKERRQ(ierr);}
    if (user.showSolution) {
      ierr = PetscPrintf(PETSC_COMM_WORLD, "Solution\n");CHKERRQ(ierr);
      ierr = VecChop(u, 3.0e-9);CHKERRQ(ierr);
      ierr = VecView(u, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
    }
  } else if (user.runType == RUN_PERF) {
    PetscReal res = 0.0;

    ierr = SNESComputeFunction(snes, u, r);CHKERRQ(ierr);
    ierr = PetscPrintf(PETSC_COMM_WORLD, "Initial Residual\n");CHKERRQ(ierr);
    ierr = VecChop(r, 1.0e-10);CHKERRQ(ierr);
    ierr = VecNorm(r, NORM_2, &res);CHKERRQ(ierr);
    ierr = PetscPrintf(PETSC_COMM_WORLD, "L_2 Residual: %g\n", res);CHKERRQ(ierr);
  } else {
    PetscReal res = 0.0;

    /* Check discretization error */
    ierr = PetscPrintf(PETSC_COMM_WORLD, "Initial guess\n");CHKERRQ(ierr);
    ierr = VecView(u, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
    ierr = DMPlexComputeL2Diff(dm, user.fe, user.exactFuncs, NULL, u, &error);CHKERRQ(ierr);
    if (error < 1.0e-11) {ierr = PetscPrintf(PETSC_COMM_WORLD, "L_2 Error: < 1.0e-11\n");CHKERRQ(ierr);}
    else                 {ierr = PetscPrintf(PETSC_COMM_WORLD, "L_2 Error: %g\n", error);CHKERRQ(ierr);}
    /* Check residual */
    ierr = SNESComputeFunction(snes, u, r);CHKERRQ(ierr);
    ierr = PetscPrintf(PETSC_COMM_WORLD, "Initial Residual\n");CHKERRQ(ierr);
    ierr = VecChop(r, 1.0e-10);CHKERRQ(ierr);
    ierr = VecView(r, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
    ierr = VecNorm(r, NORM_2, &res);CHKERRQ(ierr);
    ierr = PetscPrintf(PETSC_COMM_WORLD, "L_2 Residual: %g\n", res);CHKERRQ(ierr);
    /* Check Jacobian */
    {
      Vec          b;

      ierr = SNESComputeJacobian(snes, u, A, A);CHKERRQ(ierr);
      ierr = VecDuplicate(u, &b);CHKERRQ(ierr);
      ierr = VecSet(r, 0.0);CHKERRQ(ierr);
      ierr = SNESComputeFunction(snes, r, b);CHKERRQ(ierr);
      ierr = MatMult(A, u, r);CHKERRQ(ierr);
      ierr = VecAXPY(r, 1.0, b);CHKERRQ(ierr);
      ierr = VecDestroy(&b);CHKERRQ(ierr);
      ierr = PetscPrintf(PETSC_COMM_WORLD, "Au - b = Au + F(0)\n");CHKERRQ(ierr);
      ierr = VecChop(r, 1.0e-10);CHKERRQ(ierr);
      ierr = VecView(r, PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
      ierr = VecNorm(r, NORM_2, &res);CHKERRQ(ierr);
      ierr = PetscPrintf(PETSC_COMM_WORLD, "Linear L_2 Residual: %g\n", res);CHKERRQ(ierr);
    }
  }
  ierr = VecViewFromOptions(u, NULL, "-vec_view");CHKERRQ(ierr);

  if (user.bcType == NEUMANN) {
    ierr = MatNullSpaceDestroy(&nullSpace);CHKERRQ(ierr);
  }
  if (user.jacobianMF) {
    ierr = VecDestroy(&userJ.u);CHKERRQ(ierr);
  }
  if (A != J) {ierr = MatDestroy(&A);CHKERRQ(ierr);}
  ierr = PetscFEDestroy(&user.fe[0]);CHKERRQ(ierr);
  ierr = PetscFEDestroy(&user.feBd[0]);CHKERRQ(ierr);
  ierr = PetscFEDestroy(&user.feAux[0]);CHKERRQ(ierr);
  ierr = MatDestroy(&J);CHKERRQ(ierr);
  ierr = VecDestroy(&u);CHKERRQ(ierr);
  ierr = VecDestroy(&r);CHKERRQ(ierr);
  ierr = SNESDestroy(&snes);CHKERRQ(ierr);
  ierr = DMDestroy(&dm);CHKERRQ(ierr);
  ierr = PetscFree(user.exactFuncs);CHKERRQ(ierr);
  ierr = PetscFinalize();
  return 0;
}
示例#10
0
PetscErrorCode CreateTensorProductHybrid_3D(MPI_Comm comm, PetscInt testNum, DM *dm)
{
  DM             idm = NULL, hdm = NULL;
  DMLabel        faultLabel;
  PetscInt       p;
  PetscMPIInt    rank;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
  if (!rank) {
    switch (testNum) {
    case 0:
    {
      PetscInt    numPoints[2]         = {12, 2};
      PetscInt    coneSize[14]         = {8, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
      PetscInt    cones[16]            = {2, 3, 4, 5, 6, 7, 8, 9,  5, 4, 10, 11, 7, 12, 13, 8};
      PetscInt    coneOrientations[16] = {0, 0, 0, 0, 0, 0, 0, 0,  0, 0,  0,  0, 0,  0,  0, 0};
      PetscScalar vertexCoords[36]     = {-1.0, -0.5, -0.5,  -1.0,  0.5, -0.5,  0.0,  0.5, -0.5,   0.0, -0.5, -0.5,
                                          -1.0, -0.5,  0.5,   0.0, -0.5,  0.5,  0.0,  0.5,  0.5,  -1.0,  0.5,  0.5,
                                          1.0,  0.5, -0.5,   1.0, -0.5, -0.5,  1.0, -0.5,  0.5,   1.0,  0.5,  0.5};
      PetscInt    faultPoints[4]       = {2, 3, 5, 6};

      ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
      for(p = 0; p < 4; ++p) {ierr = DMSetLabelValue(*dm, "fault", faultPoints[p], 1);CHKERRQ(ierr);}
    }
    break;
    case 1:
    {
      PetscInt    numPoints[2]         = {30, 7};
      PetscInt    coneSize[37]         = {8,8,8,8,8,8,8, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
      PetscInt    cones[56]            = { 8, 21, 20,  7, 13, 12, 23, 24,
                                          14, 15, 10,  9, 13,  8, 21, 24,
                                          15, 16, 11, 10, 24, 21, 22, 25,
                                          30, 29, 28, 21, 35, 24, 33, 34,
                                          24, 21, 30, 35, 25, 36, 31, 22,
                                          27, 20, 21, 28, 32, 33, 24, 23,
                                          15, 24, 13, 14, 19, 18, 17, 26};
      PetscInt    coneOrientations[56] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
      PetscScalar vertexCoords[90]     = {-2.0, -2.0, -2.0,  -2.0, -1.0, -2.0,  -3.0,  0.0, -2.0,  -2.0,  1.0, -2.0,  -2.0,  2.0, -2.0,  -2.0, -2.0,  0.0,
                                          -2.0, -1.0,  0.0,  -3.0,  0.0,  0.0,  -2.0,  1.0,  0.0,  -2.0,  2.0,  0.0,  -2.0, -1.0,  2.0,  -3.0,  0.0,  2.0,
                                          -2.0,  1.0,  2.0,   0.0, -2.0, -2.0,   0.0,  0.0, -2.0,   0.0,  2.0, -2.0,   0.0, -2.0,  0.0,   0.0,  0.0,  0.0,
                                           0.0,  2.0,  0.0,   0.0,  0.0,  2.0,   2.0, -2.0, -2.0,   2.0, -1.0, -2.0,   3.0,  0.0, -2.0,   2.0,  1.0, -2.0,
                                           2.0,  2.0, -2.0,   2.0, -2.0,  0.0,   2.0, -1.0,  0.0,   3.0,  0.0,  0.0,   2.0,  1.0,  0.0,   2.0,  2.0,  0.0};
      PetscInt    faultPoints[6]       = {20, 21, 22, 23, 24, 25};

      ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
      for(p = 0; p < 6; ++p) {ierr = DMSetLabelValue(*dm, "fault", faultPoints[p], 1);CHKERRQ(ierr);}
    }
    break;
    default: SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "No test mesh %d", testNum);
    }
    ierr = DMPlexCheckSymmetry(*dm);CHKERRQ(ierr);
    ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
    ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
    ierr = DMPlexCheckSymmetry(idm);CHKERRQ(ierr);
    ierr = DMGetLabel(*dm, "fault", &faultLabel);CHKERRQ(ierr);
    ierr = DMPlexCreateHybridMesh(idm, faultLabel, NULL, &hdm);CHKERRQ(ierr);
    ierr = DMDestroy(&idm);CHKERRQ(ierr);
    ierr = DMDestroy(dm);CHKERRQ(ierr);
    *dm  = hdm;
  } else {
    PetscInt numPoints[4] = {0, 0, 0, 0};

    ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, NULL, NULL, NULL, NULL);CHKERRQ(ierr);
    ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
    ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
    ierr = DMPlexCreateHybridMesh(idm, NULL, NULL, &hdm);CHKERRQ(ierr);
    ierr = DMDestroy(&idm);CHKERRQ(ierr);
    ierr = DMDestroy(dm);CHKERRQ(ierr);
    *dm  = hdm;
  }
  PetscFunctionReturn(0);
}
示例#11
0
/* Two tetrahedrons separated by a zero-volume cell with 6 vertices

 cell   6 ___33___10______    cell
 0    / | \        |\      \     1
    21  |  23      | 29     27
    /12 24 14\    30  \      \
   3-20-|----5--32-|---9--26--7
    \ 13| 11/      |18 /      /
    19  |  22      | 28     25
      \ | /        |/      /
        4----31----8------
         cell 2
*/
PetscErrorCode CreateSimplexHybrid_3D(MPI_Comm comm, PetscInt testNum, DM *dm)
{
  DM             idm = NULL, hdm = NULL;
  DMLabel        faultLabel, hybridLabel;
  PetscInt       p;
  PetscMPIInt    rank;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
  if (!rank) {
    switch (testNum) {
    case 0:
    {
      PetscInt    numPoints[2]        = {5, 2};
      PetscInt    coneSize[7]         = {4, 4, 0, 0, 0, 0, 0};
      PetscInt    cones[8]            = {4, 3, 5, 2,  5, 3, 4, 6};
      PetscInt    coneOrientations[8] = {0, 0, 0, 0,  0, 0, 0, 0};
      PetscScalar vertexCoords[15]    = {-1.0, 0.0, 0.0,  0.0, -1.0, 0.0,  0.0, 0.0, 1.0,  0.0, 1.0, 0.0,  1.0, 0.0, 0.0};
      PetscInt    faultPoints[3]      = {3, 4, 5};

      ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
      for(p = 0; p < 3; ++p) {ierr = DMSetLabelValue(*dm, "fault", faultPoints[p], 1);CHKERRQ(ierr);}
    }
    break;
    case 1:
    {
      /* Tets 0,3,5 and 1,2,4 */
      PetscInt    numPoints[2]         = {9, 6};
      PetscInt    coneSize[15]         = {4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0};
      PetscInt    cones[24]            = { 7, 9,  8, 6,  11,  9, 13, 14,  10, 13, 11, 9,
                                          10, 9, 11, 7,   9, 13, 14, 12,   7, 11,  8, 9};
      PetscInt    coneOrientations[24] = { 0, 0,  0, 0,   0,  0,  0,  0,   0,  0,  0, 0,
                                           0, 0,  0, 0,   0,  0,  0,  0,   0,  0,  0, 0};
      PetscScalar vertexCoords[27]     = {-2.0, -1.0,  0.0,  -2.0,  0.0,  0.0,  -2.0,  0.0,  1.0,
                                           0.0, -1.0,  0.0,   0.0,  0.0,  0.0,   0.0,  0.0,  1.0,
                                           2.0, -1.0,  0.0,   2.0,  0.0,  0.0,   2.0,  0.0,  1.0};
      PetscInt    faultPoints[3]       = {9, 10, 11};

      ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
      for(p = 0; p < 3; ++p) {ierr = DMSetLabelValue(*dm, "fault", faultPoints[p], 1);CHKERRQ(ierr);}
    }
    break;
    default: SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "No test mesh %d", testNum);
    }
    ierr = DMPlexCheckSymmetry(*dm);CHKERRQ(ierr);
    ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
    ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
    ierr = DMPlexCheckSymmetry(idm);CHKERRQ(ierr);
    ierr = DMGetLabel(*dm, "fault", &faultLabel);CHKERRQ(ierr);
    ierr = DMPlexCreateHybridMesh(idm, faultLabel, &hybridLabel, &hdm);CHKERRQ(ierr);
    ierr = DMLabelDestroy(&hybridLabel);CHKERRQ(ierr);
    ierr = DMDestroy(&idm);CHKERRQ(ierr);
    ierr = DMDestroy(dm);CHKERRQ(ierr);
    *dm  = hdm;
  } else {
    PetscInt numPoints[4] = {0, 0, 0, 0};

    ierr = DMPlexCreateFromDAG(*dm, 1, numPoints, NULL, NULL, NULL, NULL);CHKERRQ(ierr);
    ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
    ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
    ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
    ierr = DMPlexCreateHybridMesh(idm, NULL, NULL, &hdm);CHKERRQ(ierr);
    ierr = DMDestroy(&idm);CHKERRQ(ierr);
    ierr = DMDestroy(dm);CHKERRQ(ierr);
    *dm  = hdm;
  }
  PetscFunctionReturn(0);
}
示例#12
0
/* Two tetrahedrons

 cell   5          5______    cell
 0    / | \        |\      \     1
    17  |  18      | 18 13  21
    /8 19 10\     19  \      \
   2-14-|----4     |   4--22--6
    \ 9 | 7 /      |10 /      /
    16  |  15      | 15  12 20
      \ | /        |/      /
        3          3------
*/
PetscErrorCode CreateSimplex_3D(MPI_Comm comm, PetscInt testNum, DM *dm)
{
  DM             idm = NULL;
  PetscInt       depth = 3;
  PetscMPIInt    rank;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = MPI_Comm_rank(comm, &rank);CHKERRQ(ierr);
  if (!rank) {
    switch (testNum) {
    case 0:
    {
      PetscInt    numPoints[4]         = {5, 9, 7, 2};
      PetscInt    coneSize[23]         = {4, 4, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2};
      PetscInt    cones[47]            = { 7,  8,  9, 10,  10, 11, 12, 13,  14, 15, 16,  17, 18, 14,  16, 19, 17,  15, 18, 19,  20, 21, 19,  15, 22, 20,  18, 21, 22,  2, 4,  4, 3,  3, 2,  2, 5,  5, 4,  3, 5,  3, 6,  6, 5,  4, 6};
      PetscInt    coneOrientations[47] = { 0,  0,  0,  0,  -3,  0,  0,  0,   0,  0,  0,   0,  0, -2,  -2,  0, -2,  -2, -2, -2,   0,  0, -2,  -2,  0, -2,  -2, -2, -2,  0, 0,  0, 0,  0, 0,  0, 0,  0, 0,  0, 0,  0, 0,  0, 0,  0, 0};
      PetscScalar vertexCoords[15]     = {0.0, 0.0, -0.5,  0.0, -0.5, 0.0,  1.0, 0.0, 0.0,  0.0, 0.5, 0.0,  0.0, 0.0, 0.5};

      ierr = DMPlexCreateFromDAG(*dm, depth, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
    }
    break;
    case 1:
    {
      PetscInt    numPoints[2]        = {5, 2};
      PetscInt    coneSize[7]         = {4, 4, 0, 0, 0, 0, 0};
      PetscInt    cones[8]            = {4, 3, 5, 2,  5, 3, 4, 6};
      PetscInt    coneOrientations[8] = {0, 0, 0, 0,  0, 0, 0, 0};
      PetscScalar vertexCoords[15]    = {-1.0, 0.0, 0.0,  0.0, -1.0, 0.0,  0.0, 0.0, 1.0,  0.0, 1.0, 0.0,  1.0, 0.0, 0.0};

      depth = 1;
      ierr = DMPlexCreateFromDAG(*dm, depth, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
      ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
      ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
      ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = idm;
    }
    break;
    case 2:
    {
      PetscInt    numPoints[2]        = {4, 1};
      PetscInt    coneSize[5]         = {4, 0, 0, 0, 0};
      PetscInt    cones[4]            = {2, 3, 4, 1};
      PetscInt    coneOrientations[4] = {0, 0, 0, 0};
      PetscScalar vertexCoords[12]    = {0.0, 0.0, 0.0,  1.0, 0.0, 0.0,  0.0, 1.0, 0.0,  0.0, 0.0, 1.0};

      depth = 1;
      ierr = DMPlexCreateFromDAG(*dm, depth, numPoints, coneSize, cones, coneOrientations, vertexCoords);CHKERRQ(ierr);
      ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
      ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
      ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = idm;
    }
    break;
    default: SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "No test mesh %d", testNum);
    }
  } else {
    PetscInt numPoints[4] = {0, 0, 0, 0};

    ierr = DMPlexCreateFromDAG(*dm, depth, numPoints, NULL, NULL, NULL, NULL);CHKERRQ(ierr);
    switch (testNum) {
    case 1:
      ierr = DMPlexInterpolate(*dm, &idm);CHKERRQ(ierr);
      ierr = DMPlexCopyCoordinates(*dm, idm);CHKERRQ(ierr);
      ierr = DMViewFromOptions(idm, NULL, "-in_dm_view");CHKERRQ(ierr);
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = idm;
      break;
    }
  }
  PetscFunctionReturn(0);
}
示例#13
0
PetscErrorCode SetupDiscretization(DM dm, AppCtx *user)
{
  DM             cdm   = dm;
  const PetscInt dim   = user->dim;
  const PetscInt id    = 1;
  PetscFE        feAux = NULL;
  PetscFE        feBd  = NULL;
  PetscFE        feCh  = NULL;
  PetscFE        fe;
  PetscDS        prob;
  PetscErrorCode ierr;

  PetscFunctionBeginUser;
  /* Create finite element */
  ierr = PetscFECreateDefault(dm, dim, 1, PETSC_TRUE, NULL, -1, &fe);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) fe, "potential");CHKERRQ(ierr);
  if (user->bcType == NEUMANN) {
    ierr = PetscFECreateDefault(dm, dim-1, 1, PETSC_TRUE, "bd_", -1, &feBd);CHKERRQ(ierr);
    ierr = PetscObjectSetName((PetscObject) feBd, "potential");CHKERRQ(ierr);
  }
  if (user->variableCoefficient == COEFF_FIELD) {
    PetscQuadrature q;

    ierr = PetscFECreateDefault(dm, dim, 1, PETSC_TRUE, "mat_", -1, &feAux);CHKERRQ(ierr);
    ierr = PetscFEGetQuadrature(fe, &q);CHKERRQ(ierr);
    ierr = PetscFESetQuadrature(feAux, q);CHKERRQ(ierr);
  }
  if (user->check) {ierr = PetscFECreateDefault(dm, dim, 1, PETSC_TRUE, "ch_", -1, &feCh);CHKERRQ(ierr);}
  /* Set discretization and boundary conditions for each mesh */
  while (cdm) {
    ierr = DMGetDS(cdm, &prob);CHKERRQ(ierr);
    ierr = PetscDSSetDiscretization(prob, 0, (PetscObject) fe);CHKERRQ(ierr);
    ierr = PetscDSSetBdDiscretization(prob, 0, (PetscObject) feBd);CHKERRQ(ierr);
    if (feAux) {
      DM      dmAux;
      PetscDS probAux;

      ierr = DMClone(cdm, &dmAux);CHKERRQ(ierr);
      ierr = DMPlexCopyCoordinates(cdm, dmAux);CHKERRQ(ierr);
      ierr = DMGetDS(dmAux, &probAux);CHKERRQ(ierr);
      ierr = PetscDSSetDiscretization(probAux, 0, (PetscObject) feAux);CHKERRQ(ierr);
      ierr = PetscObjectCompose((PetscObject) dm, "dmAux", (PetscObject) dmAux);CHKERRQ(ierr);
      ierr = SetupMaterial(cdm, dmAux, user);CHKERRQ(ierr);
      ierr = DMDestroy(&dmAux);CHKERRQ(ierr);
    }
    if (feCh) {
      DM      dmCh;
      PetscDS probCh;

      ierr = DMClone(cdm, &dmCh);CHKERRQ(ierr);
      ierr = DMPlexCopyCoordinates(cdm, dmCh);CHKERRQ(ierr);
      ierr = DMGetDS(dmCh, &probCh);CHKERRQ(ierr);
      ierr = PetscDSSetDiscretization(probCh, 0, (PetscObject) feCh);CHKERRQ(ierr);
      ierr = PetscObjectCompose((PetscObject) dm, "dmCh", (PetscObject) dmCh);CHKERRQ(ierr);
      ierr = DMDestroy(&dmCh);CHKERRQ(ierr);
    }
    ierr = SetupProblem(cdm, user);CHKERRQ(ierr);
    ierr = DMPlexAddBoundary(cdm, user->bcType == DIRICHLET, "wall", user->bcType == NEUMANN ? "boundary" : "marker", 0, user->exactFuncs[0], 1, &id, user);CHKERRQ(ierr);
    ierr = DMPlexGetCoarseDM(cdm, &cdm);CHKERRQ(ierr);
  }
  ierr = PetscFEDestroy(&fe);CHKERRQ(ierr);
  ierr = PetscFEDestroy(&feBd);CHKERRQ(ierr);
  ierr = PetscFEDestroy(&feAux);CHKERRQ(ierr);
  ierr = PetscFEDestroy(&feCh);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}