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C++ PetscOptionsBegin函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中PetscOptionsBegin函数的典型用法代码示例。如果您正苦于以下问题：C++ PetscOptionsBegin函数的具体用法？C++ PetscOptionsBegin怎么用？C++ PetscOptionsBegin使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了PetscOptionsBegin函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: ProcessOptions

static PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
    PetscErrorCode ierr;

    PetscFunctionBeginUser;
    options->dim           = 2;
    options->cellSimplex   = PETSC_TRUE;
    options->filename[0]   = '\0';
    options->testPartition = PETSC_TRUE;
    options->testNum       = 0;

    ierr = PetscOptionsBegin(comm, "", "Meshing Problem Options", "DMPLEX");
    CHKERRQ(ierr);
    ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex13.c", options->dim, &options->dim, NULL);
    CHKERRQ(ierr);
    ierr = PetscOptionsBool("-cell_simplex", "Use simplices if true, otherwise hexes", "ex13.c", options->cellSimplex, &options->cellSimplex, NULL);
    CHKERRQ(ierr);
    ierr = PetscOptionsString("-filename", "The mesh file", "ex13.c", options->filename, options->filename, PETSC_MAX_PATH_LEN, NULL);
    CHKERRQ(ierr);
    ierr = PetscOptionsBool("-test_partition", "Use a fixed partition for testing", "ex13.c", options->testPartition, &options->testPartition, NULL);
    CHKERRQ(ierr);
    ierr = PetscOptionsInt("-test_num", "The test partition number", "ex13.c", options->testNum, &options->testNum, NULL);
    CHKERRQ(ierr);
    ierr = PetscOptionsEnd();
    PetscFunctionReturn(0);
};
开发者ID:pombredanne，项目名称:petsc，代码行数:26，代码来源:ex13.c


示例2: ProcessOptions

static PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscInt dim;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->test         = 0;
  options->dim          = 3;
  options->simplex      = PETSC_TRUE;
  options->interpolate  = PETSC_FALSE;
  options->filename[0]  = '\0';
  ierr = PetscOptionsBegin(comm, "", "Zero-sized DMPlexGetCellFields Test Options", "DMPLEX");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-test", "Test to run", FILENAME, options->test, &options->test, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", FILENAME, options->dim, &options->dim, NULL);CHKERRQ(ierr);
  if (options->dim > 3) SETERRQ1(comm, PETSC_ERR_ARG_OUTOFRANGE, "dimension set to %d, must be <= 3", options->dim);
  ierr = PetscOptionsBool("-simplex", "Use simplices if true, otherwise hexes", FILENAME, options->simplex, &options->simplex, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-interpolate", "Interpolate the mesh", FILENAME, options->interpolate, &options->interpolate, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsString("-filename", "The mesh file", FILENAME, options->filename, options->filename, PETSC_MAX_PATH_LEN, NULL);CHKERRQ(ierr);
  options->faces[0] = 1; options->faces[1] = 1; options->faces[2] = 1;
  dim = options->dim;
  ierr = PetscOptionsIntArray("-faces", "Number of faces per dimension", FILENAME, options->faces, &dim, NULL);CHKERRQ(ierr);
  if (dim) options->dim = dim;
  ierr = PetscOptionsEnd();
  PetscFunctionReturn(0);
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:25，代码来源:ex25.c


示例3: ProcessOptions

PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscInt       patchSize, commSize, gridSize;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->debug = 0;
  options->dim   = 2;
  patchSize      = 0;
  commSize       = 0;
  gridSize       = 0;

  ierr = PetscOptionsBegin(comm, "", "Patch Test Options", "DMPATCH");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-debug", "The debugging level", "ex1.c", options->debug, &options->debug, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The spatial dimension", "ex1.c", options->dim, &options->dim, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-patch_size", "The patch size in each dimension", "ex1.c", patchSize, &patchSize, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-comm_size", "The comm size in each dimension", "ex1.c", commSize, &commSize, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-grid_size", "The grid size in each dimension", "ex1.c", gridSize, &gridSize, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();

  options->patchSize.i = options->patchSize.j = options->patchSize.k = 1;
  options->commSize.i = options->commSize.j = options->commSize.k = 1;
  options->gridSize.i = options->gridSize.j = options->gridSize.k = 1;
  if (options->dim > 0) {options->patchSize.i = patchSize; options->commSize.i = commSize; options->gridSize.i = gridSize;}
  if (options->dim > 1) {options->patchSize.j = patchSize; options->commSize.j = commSize; options->gridSize.j = gridSize;}
  if (options->dim > 2) {options->patchSize.k = patchSize; options->commSize.k = commSize; options->gridSize.k = gridSize;}
  PetscFunctionReturn(0);
};
开发者ID:erdc-cm，项目名称:petsc-dev，代码行数:28，代码来源:ex1.c


示例4: ProcessOptions

static PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscInt       n = 3, sol;
  PetscErrorCode ierr;

  PetscFunctionBeginUser;
  options->dim              = 2;
  options->cells[0]         = 1;
  options->cells[1]         = 1;
  options->cells[2]         = 1;
  options->simplex          = PETSC_TRUE;
  options->solType          = SOL_VLAP_QUADRATIC;
  options->useNearNullspace = PETSC_TRUE;
  ierr = PetscStrncpy(options->dmType, DMPLEX, 256);CHKERRQ(ierr);

  ierr = PetscOptionsBegin(comm, "", "Linear Elasticity Problem Options", "DMPLEX");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex17.c", options->dim, &options->dim, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsIntArray("-cells", "The initial mesh division", "ex17.c", options->cells, &n, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-simplex", "Simplicial (true) or tensor (false) mesh", "ex17.c", options->simplex, &options->simplex, NULL);CHKERRQ(ierr);
  sol  = options->solType;
  ierr = PetscOptionsEList("-sol_type", "Type of exact solution", "ex17.c", solutionTypes, NUM_SOLUTION_TYPES, solutionTypes[options->solType], &sol, NULL);CHKERRQ(ierr);
  options->solType = (SolutionType) sol;
  ierr = PetscOptionsBool("-near_nullspace", "Use the rigid body modes as an AMG near nullspace", "ex17.c", options->useNearNullspace, &options->useNearNullspace, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsFList("-dm_type", "Convert DMPlex to another format", "ex17.c", DMList, options->dmType, options->dmType, 256, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();
  PetscFunctionReturn(0);
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:27，代码来源:ex17.c


示例5: dUnitsSetFromOptions

dErr dUnitsSetFromOptions(dUnits un)
{
  dErr err;

  dFunctionBegin;
  dValidHeader(un,dUNITS_CLASSID,1);
  err = PetscOptionsBegin(((PetscObject)un)->comm,((PetscObject)un)->prefix,"Units manager","dUnits");dCHK(err);
  for (dUnitsBaseType btype = 0; btype < dUNITS_MAX; btype++) {
    char opt[256],help[256],uspec[256];
    dReal commonpersi = 1.0,scale = 1.0;
    dBool flg;
    err = PetscSNPrintf(opt,sizeof opt,"-units_%s",dUnitsBaseTypes[btype]);dCHK(err);
    err = PetscSNPrintf(uspec,sizeof uspec,"%s:%s:%f:%f",dUnitsBaseNamesSI[btype],dUnitsBaseNamesShortSI[btype],commonpersi,scale);
    err = PetscSNPrintf(help,sizeof help,"Common name:short name:one common unit of %s expressed in %s:common units per non-dimensionalized",dUnitsBaseTypes[btype],dUnitsBaseNamesSI[btype]);dCHK(err);
    err = PetscOptionsString(opt,help,"dUnitsSetBase",uspec,uspec,sizeof uspec,&flg);dCHK(err);
    if (flg) {
      char *longname,*shortname,*buf1,*buf2;
      longname = uspec;
      if (!(shortname = strchr(longname,':'))) dERROR(((dObject)un)->comm,PETSC_ERR_USER,"The field specification '%s' is ':' delimited",opt);
      *shortname++ = 0;
      if (!(buf1 = strchr(shortname,':'))) dERROR(((dObject)un)->comm,PETSC_ERR_USER,"The field specification for '%s' needs four arguments, but only two given",longname);
      *buf1++ = 0;
      if (!(buf2 = strchr(buf1,':'))) dERROR(((dObject)un)->comm,PETSC_ERR_USER,"The field specification for '%s' needs four arguments, but only three given",longname);
      *buf2++ = 0;
      if (sscanf(buf1,"%lf",&commonpersi) != 1) dERROR(((dObject)un)->comm,PETSC_ERR_USER,"Size of common unit '%s' could not be parsed from '%s'",longname,buf1);
      if (sscanf(buf2,"%lf",&scale) != 1) dERROR(((dObject)un)->comm,PETSC_ERR_USER,"Scale for common unit '%s' could not be parsed from '%s'",longname,buf2);
      err = dUnitsSetBase(un,btype,longname,shortname,commonpersi,scale,NULL);dCHK(err);
    }
  }
  err = PetscOptionsEnd();dCHK(err);
  dFunctionReturn(0);
}
开发者ID:xyuan，项目名称:dohp，代码行数:32，代码来源:dunits.c


示例6: main

int main(int argc, char **argv)
{
  DM             dm;
  char           typeString[256] = {'\0'};
  PetscViewer    viewer          = NULL;
  PetscBool      flg;
  PetscErrorCode ierr;

  ierr = PetscInitialize(&argc, &argv, NULL,help);if (ierr) return ierr;
  ierr = DMCreate(PETSC_COMM_WORLD, &dm);CHKERRQ(ierr);
  ierr = PetscStrncpy(typeString,DMFOREST,256);CHKERRQ(ierr);
  ierr = PetscOptionsBegin(PETSC_COMM_WORLD,NULL,"DM Forest example options",NULL);CHKERRQ(ierr);
  ierr = PetscOptionsString("-dm_type","The type of the dm",NULL,DMFOREST,typeString,sizeof(typeString),NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();CHKERRQ(ierr);
  ierr = DMSetType(dm,(DMType) typeString);CHKERRQ(ierr);
  ierr = DMSetFromOptions(dm);CHKERRQ(ierr);
  ierr = DMSetUp(dm);CHKERRQ(ierr);
  ierr = PetscOptionsGetViewer(PETSC_COMM_WORLD,NULL,"-dm_view",&viewer,NULL,&flg);CHKERRQ(ierr);
  if (flg) {
    ierr = DMView(dm,viewer);CHKERRQ(ierr);
  }
  ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr);
  ierr = DMDestroy(&dm);CHKERRQ(ierr);
  ierr = PetscFinalize();
  return ierr;
}
开发者ID:tom-klotz，项目名称:petsc，代码行数:26，代码来源:ex1.c


示例7: ProcessOptions

PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->debug             = 0;
  options->dim               = 2;
  options->interpolate       = PETSC_FALSE;
  options->refinementUniform = PETSC_FALSE;
  options->refinementLimit   = 0.0;
  options->cellSimplex       = PETSC_TRUE;
  options->filename[0]       = '\0';

  ierr = PetscOptionsBegin(comm, "", "Meshing Problem Options", "DMPLEX");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-debug", "The debugging level", "ex1.c", options->debug, &options->debug, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex1.c", options->dim, &options->dim, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-interpolate", "Generate intermediate mesh elements", "ex1.c", options->interpolate, &options->interpolate, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-refinement_uniform", "Uniformly refine the mesh", "ex1.c", options->refinementUniform, &options->refinementUniform, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsReal("-refinement_limit", "The largest allowable cell volume", "ex1.c", options->refinementLimit, &options->refinementLimit, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-cell_simplex", "Use simplices if true, otherwise hexes", "ex1.c", options->cellSimplex, &options->cellSimplex, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsString("-filename", "The mesh file", "ex7.c", options->filename, options->filename, PETSC_MAX_PATH_LEN, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();

  ierr = PetscLogEventRegister("CreateMesh",          DM_CLASSID,   &options->createMeshEvent);CHKERRQ(ierr);
  PetscFunctionReturn(0);
};
开发者ID:feelpp，项目名称:debian-petsc，代码行数:26，代码来源:ex1.c


示例8: main

int main(int argc,char **argv) {
    PetscErrorCode ierr;
    SNES      snes;          // nonlinear solver context
    Vec       x, r;          // solution, residual vectors
    PetscReal x0 = 2.0;

    PetscInitialize(&argc,&argv,(char*)0,help);

    ierr = PetscOptionsBegin(PETSC_COMM_WORLD,"","options to atan","");CHKERRQ(ierr);
    ierr = PetscOptionsReal("-x0","initial value","atan.c",x0,&x0,NULL); CHKERRQ(ierr);
    ierr = PetscOptionsEnd();CHKERRQ(ierr);

    ierr = VecCreate(PETSC_COMM_WORLD,&x); CHKERRQ(ierr);
    ierr = VecSetSizes(x,PETSC_DECIDE,1); CHKERRQ(ierr);
    ierr = VecSetFromOptions(x); CHKERRQ(ierr);
    ierr = VecSet(x,x0); CHKERRQ(ierr);
    ierr = VecDuplicate(x,&r); CHKERRQ(ierr);

    ierr = SNESCreate(PETSC_COMM_WORLD,&snes); CHKERRQ(ierr);
    ierr = SNESSetFunction(snes,r,FormFunction,NULL); CHKERRQ(ierr);
    ierr = SNESSetFromOptions(snes); CHKERRQ(ierr);
    ierr = SNESSolve(snes,NULL,x); CHKERRQ(ierr);
    ierr = VecView(x,PETSC_VIEWER_STDOUT_WORLD); CHKERRQ(ierr);

    VecDestroy(&x);  VecDestroy(&r);  SNESDestroy(&snes);
    PetscFinalize();
    return 0;
}
开发者ID:bueler，项目名称:p4pdes，代码行数:28，代码来源:atan.c


示例9: ProcessOptions

PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->debug          = 0;
  options->dim            = 2;
  options->cellHybrid     = PETSC_TRUE;
  options->cellSimplex    = PETSC_TRUE;
  options->testPartition  = PETSC_TRUE;
  options->testNum        = 0;
  options->simplex2tensor = PETSC_FALSE;
  options->uninterpolate  = PETSC_FALSE;
  options->reinterpolate  = PETSC_FALSE;

  ierr = PetscOptionsBegin(comm, "", "Meshing Problem Options", "DMPLEX");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-debug", "The debugging level", "ex4.c", options->debug, &options->debug, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex4.c", options->dim, &options->dim, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-cell_hybrid", "Use a hybrid mesh", "ex4.c", options->cellHybrid, &options->cellHybrid, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-cell_simplex", "Use simplices if true, otherwise hexes", "ex4.c", options->cellSimplex, &options->cellSimplex, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-test_partition", "Use a fixed partition for testing", "ex4.c", options->testPartition, &options->testPartition, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-test_num", "The particular mesh to test", "ex4.c", options->testNum, &options->testNum, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-simplex2tensor", "Refine simplicial cells in tensor product cells", "ex4.c", options->simplex2tensor, &options->simplex2tensor, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-uninterpolate", "Uninterpolate the mesh at the end", "ex4.c", options->uninterpolate, &options->uninterpolate, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-reinterpolate", "Reinterpolate the mesh at the end", "ex4.c", options->reinterpolate, &options->reinterpolate, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();
  PetscFunctionReturn(0);
}
开发者ID:petsc，项目名称:petsc，代码行数:28，代码来源:ex4.c


示例10: main

int main(int argc, char **args) {
  PetscErrorCode ierr;
  MPI_Comm comm = MPI_COMM_SELF;
  ierr = PetscInitialize(&argc, &args, (char*)0, help); CHKERRQ(ierr);

  KSP    ksp;         KSPCreate(comm, &ksp);
  WaveFunc wave_func; WaveFuncCreate(comm, &wave_func);
  FEMInf fem;         FEMInfCreate(comm, &fem); 
  PetscViewer viewer= PETSC_VIEWER_STDOUT_SELF;
  ViewerFunc view_func; ViewerFuncCreate(comm, &view_func);

  PetscViewerFormat format;

  ierr = PetscOptionsBegin(comm, "", "eig_one.c options", "none");
  ierr = WaveFuncSetFromOptions(wave_func); CHKERRQ(ierr);
  ierr = FEMInfSetFromOptions(fem); CHKERRQ(ierr);
  //  ierr = PotSetFromOptions(pot);  CHKERRQ(ierr);  
  ierr = ViewerFuncSetFromOptions(view_func); CHKERRQ(ierr);
  ierr = PetscOptionsGetViewer(comm, NULL, "-viewer", &viewer, &format, NULL);
  PetscOptionsEnd();

  Vec c; FEMInfCreateVec(fem, 1, &c);
  ierr = FEMInfFit(fem, wave_func, ksp, c);        CHKERRQ(ierr);
  ierr = FEMInfViewFunc(fem, c, view_func); CHKERRQ(ierr);

  ierr = PFView(wave_func, viewer);      CHKERRQ(ierr);
  ierr = FEMInfView(fem, viewer); CHKERRQ(ierr);
  ierr = ViewerFuncView(view_func, viewer); CHKERRQ(ierr);  

  ierr = PetscFinalize(); CHKERRQ(ierr);
  return 0;
}
开发者ID:ReiMatsuzaki，项目名称:rescol，代码行数:32，代码来源:fit.c


示例11: CECreate

static PetscErrorCode CECreate(Problem p)
{
  PetscErrorCode ierr;
  CECtx          *ce;

  PetscFunctionBeginUser;
  ierr    = PetscMalloc(sizeof(CECtx),&ce);CHKERRQ(ierr);
  p->data = (void*)ce;

  p->destroy    = &CEDestroy;
  p->function   = &CEFunction;
  p->jacobian   = &CEJacobian;
  p->solution   = &CESolution;
  p->final_time = 10;
  p->n          = 1;
  p->hasexact   = PETSC_TRUE;

  ce->lambda = 10;
  ierr       = PetscOptionsBegin(p->comm,NULL,"CE options","");CHKERRQ(ierr);
  {
    ierr = PetscOptionsReal("-problem_ce_lambda","Parameter controlling stiffness: xdot + lambda*(x - cos(t))","",ce->lambda,&ce->lambda,NULL);CHKERRQ(ierr);
  }
  ierr = PetscOptionsEnd();CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:ZJLi2013，项目名称:petsc，代码行数:25，代码来源:ex8.c


示例12: ProcessOptions

PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->debug           = 0;
  options->dim             = 2;
  options->interpolate     = PETSC_FALSE;
  options->refinementLimit = 0.0;

  ierr = MPI_Comm_size(comm, &options->numProcs);CHKERRQ(ierr);
  ierr = MPI_Comm_rank(comm, &options->rank);CHKERRQ(ierr);
  ierr = PetscOptionsBegin(comm, "", "Mesh Distribution Options", "DMMESH");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-debug", "The debugging level", "ex1.c", options->debug, &options->debug, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex1.c", options->dim, &options->dim, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-interpolate", "Generate intermediate mesh elements", "ex1.c", options->interpolate, &options->interpolate, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsReal("-refinement_limit", "The largest allowable cell volume", "ex1.c", options->refinementLimit, &options->refinementLimit, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscStrcpy(options->filename, "");CHKERRQ(ierr);
  ierr = PetscOptionsString("-filename", "The input filename", "ex1.c", options->filename, options->filename, 2048, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscStrcpy(options->partitioner, "chaco");CHKERRQ(ierr);
  ierr = PetscOptionsString("-partitioner", "The graph partitioner", "ex1.c", options->partitioner, options->partitioner, 2048, PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();

  ierr = PetscLogEventRegister("CreateMesh",    DM_CLASSID,   &options->createMeshEvent);CHKERRQ(ierr);
  PetscFunctionReturn(0);
};
开发者ID:erdc-cm，项目名称:petsc-dev，代码行数:26，代码来源:ex3.c


示例13: ProcessOptions

PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->debug           = 0;
  options->dim             = 2;
  options->simplex         = PETSC_TRUE;
  options->interpolate     = PETSC_FALSE;
  options->refinementLimit = 0.0;
  options->qorder          = 0;
  options->numComponents   = 1;
  options->porder          = 0;

  ierr = PetscOptionsBegin(comm, "", "Projection Test Options", "DMPlex");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-debug", "The debugging level", "ex3.c", options->debug, &options->debug, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex3.c", options->dim, &options->dim, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-simplex", "Flag for simplices or hexhedra", "ex3.c", options->simplex, &options->simplex, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-interpolate", "Generate intermediate mesh elements", "ex3.c", options->interpolate, &options->interpolate, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsReal("-refinement_limit", "The largest allowable cell volume", "ex3.c", options->refinementLimit, &options->refinementLimit, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-qorder", "The quadrature order", "ex3.c", options->qorder, &options->qorder, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-num_comp", "The number of field components", "ex3.c", options->numComponents, &options->numComponents, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-porder", "The order of polynomials to test", "ex3.c", options->porder, &options->porder, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();

  spdim = options->dim;
  PetscFunctionReturn(0);
};
开发者ID:ZJLi2013，项目名称:petsc，代码行数:28，代码来源:ex3.c


示例14: ProcessOptions

PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  const char    *names[8] = {"none", "ghosted", "mirror", "periodic", "twist", "DMBoundaryType", "DM_BOUNDARY_", NULL};
  PetscInt       n;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->dim            = 2;
  options->cellSimplex    = PETSC_TRUE;
  options->faces[0]       = 1;
  options->faces[1]       = 1;
  options->faces[2]       = 1;
  options->periodicity[0] = DM_BOUNDARY_NONE;
  options->periodicity[1] = DM_BOUNDARY_NONE;
  options->periodicity[2] = DM_BOUNDARY_NONE;
  options->filename[0]    = '\0';

  ierr = PetscOptionsBegin(comm, "", "Meshing Interpolation Test Options", "DMPLEX");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex32.c", options->dim, &options->dim, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-cell_simplex", "Use simplices if true, otherwise hexes", "ex32.c", options->cellSimplex, &options->cellSimplex, NULL);CHKERRQ(ierr);
  n    = 3;
  ierr = PetscOptionsIntArray("-faces", "Faces per direction", "ex32.c", options->faces, &n, NULL);CHKERRQ(ierr);
  n    = 3;
  ierr = PetscOptionsEnumArray("-periodicity", "Periodicity per direction", "ex32.c", names, (PetscEnum *) options->periodicity, &n, &options->isPeriodic);CHKERRQ(ierr);
  ierr = PetscOptionsString("-filename", "The mesh file", "ex32.c", options->filename, options->filename, PETSC_MAX_PATH_LEN, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();
  PetscFunctionReturn(0);
}
开发者ID:petsc，项目名称:petsc，代码行数:28，代码来源:ex32.c


示例15: ProcessOptions

PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->debug             = 0;
  options->dim               = 2;
  options->interpolate       = PETSC_FALSE;
  options->refinementLimit   = 0.0;
  options->cellSimplex       = PETSC_TRUE;
  options->filename[0]       = '\0';
  options->testPartition     = PETSC_FALSE;
  options->overlap           = PETSC_FALSE;
  options->testShape         = PETSC_FALSE;

  ierr = PetscOptionsBegin(comm, "", "Meshing Problem Options", "DMPLEX");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-debug", "The debugging level", "ex1.c", options->debug, &options->debug, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex1.c", options->dim, &options->dim, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-interpolate", "Generate intermediate mesh elements", "ex1.c", options->interpolate, &options->interpolate, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsReal("-refinement_limit", "The largest allowable cell volume", "ex1.c", options->refinementLimit, &options->refinementLimit, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-cell_simplex", "Use simplices if true, otherwise hexes", "ex1.c", options->cellSimplex, &options->cellSimplex, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsString("-filename", "The mesh file", "ex1.c", options->filename, options->filename, PETSC_MAX_PATH_LEN, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-test_partition", "Use a fixed partition for testing", "ex1.c", options->testPartition, &options->testPartition, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-overlap", "The cell overlap for partitioning", "ex1.c", options->overlap, &options->overlap, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-test_shape", "Report cell shape qualities (Jacobian condition numbers)", "ex1.c", options->testShape, &options->testShape, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();

  ierr = PetscLogEventRegister("CreateMesh",          DM_CLASSID,   &options->createMeshEvent);CHKERRQ(ierr);
  PetscFunctionReturn(0);
};
开发者ID:tom-klotz，项目名称:petsc，代码行数:30，代码来源:ex1.c


示例16: ProcessOptions

PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options)
{
  PetscErrorCode ierr;

  PetscFunctionBeginUser;
  options->debug        = 0;
  options->dim          = 2;
  options->numBatches   = 1;
  options->numBlocks    = 1;
  options->showResidual = PETSC_FALSE;
  options->showResidual = PETSC_FALSE;
  options->showJacobian = PETSC_FALSE;
  options->showSolution = PETSC_TRUE;

  ierr = MPI_Comm_size(comm, &options->numProcs);CHKERRQ(ierr);
  ierr = MPI_Comm_rank(comm, &options->rank);CHKERRQ(ierr);
  ierr = PetscOptionsBegin(comm, "", "DMDA Test Problem Options", "DMDA");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-debug", "The debugging level", "ex62.c", options->debug, &options->debug, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex62.c", options->dim, &options->dim, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-gpu_batches", "The number of cell batches per kernel", "ex62.c", options->numBatches, &options->numBatches, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-gpu_blocks", "The number of concurrent blocks per kernel", "ex62.c", options->numBlocks, &options->numBlocks, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-show_initial", "Output the initial guess for verification", "ex62.c", options->showInitial, &options->showInitial, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-show_residual", "Output the residual for verification", "ex62.c", options->showResidual, &options->showResidual, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-show_jacobian", "Output the Jacobian for verification", "ex62.c", options->showJacobian, &options->showJacobian, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-show_solution", "Output the solution for verification", "ex62.c", options->showSolution, &options->showSolution, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();

  ierr = PetscLogEventRegister("Residual",            SNES_CLASSID, &options->residualEvent);CHKERRQ(ierr);
  ierr = PetscLogEventRegister("IntegResBatchCPU",    SNES_CLASSID, &options->integrateResCPUEvent);CHKERRQ(ierr);
  ierr = PetscLogEventRegister("IntegJacBatchCPU",    SNES_CLASSID, &options->integrateJacCPUEvent);CHKERRQ(ierr);
  ierr = PetscLogEventRegister("IntegJacActBatchCPU", SNES_CLASSID, &options->integrateJacActionCPUEvent);CHKERRQ(ierr);
  ierr = PetscLogEventRegister("Jacobian",            SNES_CLASSID, &options->jacobianEvent);CHKERRQ(ierr);
  PetscFunctionReturn(0);
};
开发者ID:lw4992，项目名称:petsc，代码行数:34，代码来源:ex67.c


示例17: main

int main(int argc,char **argv)
{
    KSP            ksp;
    DM             da;
    UserContext    user;
    const char     *bcTypes[2] = {"dirichlet","neumann"};
    PetscErrorCode ierr;
    PetscInt       bc;
    Vec            b,x;

    PetscInitialize(&argc,&argv,(char *)0,help);

    ierr = KSPCreate(PETSC_COMM_WORLD,&ksp);
    CHKERRQ(ierr);
    ierr = DMDACreate2d(PETSC_COMM_WORLD, DMDA_BOUNDARY_NONE, DMDA_BOUNDARY_NONE,DMDA_STENCIL_STAR,-3,-3,PETSC_DECIDE,PETSC_DECIDE,1,1,0,0,&da);
    CHKERRQ(ierr);
    ierr = DMDASetUniformCoordinates(da,0,1,0,1,0,0);
    CHKERRQ(ierr);
    ierr = DMDASetFieldName(da,0,"Pressure");
    CHKERRQ(ierr);

    ierr = PetscOptionsBegin(PETSC_COMM_WORLD, "", "Options for the inhomogeneous Poisson equation", "DMqq");
    user.rho    = 1.0;
    ierr        = PetscOptionsReal("-rho", "The conductivity", "ex29.c", user.rho, &user.rho, PETSC_NULL);
    CHKERRQ(ierr);
    user.nu     = 0.1;
    ierr        = PetscOptionsReal("-nu", "The width of the Gaussian source", "ex29.c", user.nu, &user.nu, PETSC_NULL);
    CHKERRQ(ierr);
    bc          = (PetscInt)DIRICHLET;
    ierr        = PetscOptionsEList("-bc_type","Type of boundary condition","ex29.c",bcTypes,2,bcTypes[0],&bc,PETSC_NULL);
    CHKERRQ(ierr);
    user.bcType = (BCType)bc;
    ierr = PetscOptionsEnd();

    ierr = KSPSetComputeRHS(ksp,ComputeRHS,&user);
    CHKERRQ(ierr);
    ierr = KSPSetComputeOperators(ksp,ComputeMatrix,&user);
    CHKERRQ(ierr);
    ierr = KSPSetDM(ksp,da);
    CHKERRQ(ierr);
    ierr = KSPSetFromOptions(ksp);
    CHKERRQ(ierr);
    ierr = KSPSetUp(ksp);
    CHKERRQ(ierr);
    ierr = KSPSolve(ksp,PETSC_NULL,PETSC_NULL);
    CHKERRQ(ierr);
    ierr = KSPGetSolution(ksp,&x);
    CHKERRQ(ierr);
    ierr = KSPGetRhs(ksp,&b);
    CHKERRQ(ierr);

    ierr = DMDestroy(&da);
    CHKERRQ(ierr);
    ierr = KSPDestroy(&ksp);
    CHKERRQ(ierr);
    ierr = PetscFinalize();

    return 0;
}
开发者ID:erdc-cm，项目名称:petsc-dev，代码行数:59，代码来源:ex29.c


示例18: main

int main(int argc, char **args)
{
  Mat             A;
  MatPartitioning part;
  IS              is;
  PetscInt        i,m,N,rstart,rend,nemptyranks,*emptyranks,nbigranks,*bigranks;
  PetscMPIInt     rank,size;
  PetscErrorCode  ierr;

  ierr = PetscInitialize(&argc,&args,(char*)0,help);CHKERRQ(ierr);
  ierr = MPI_Comm_rank(PETSC_COMM_WORLD,&rank);CHKERRQ(ierr);
  ierr = MPI_Comm_size(PETSC_COMM_WORLD,&size);CHKERRQ(ierr);

  nemptyranks = 10;
  nbigranks = 10;
  ierr = PetscMalloc2(nemptyranks,PetscInt,&emptyranks,nbigranks,PetscInt,&bigranks);CHKERRQ(ierr);

  ierr = PetscOptionsBegin(PETSC_COMM_WORLD,PETSC_NULL,"Partitioning example options",PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsIntArray("-emptyranks","Ranks to be skipped by partition","",emptyranks,&nemptyranks,PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsIntArray("-bigranks","Ranks to be overloaded","",bigranks,&nbigranks,PETSC_NULL);CHKERRQ(ierr);
  ierr = PetscOptionsEnd();CHKERRQ(ierr);

  m = 1;
  for (i=0; i<nemptyranks; i++) if (rank == emptyranks[i]) m = 0;
  for (i=0; i<nbigranks; i++) if (rank == bigranks[i]) m = 5;

  ierr = MatCreate(PETSC_COMM_WORLD,&A);CHKERRQ(ierr);
  ierr = MatSetSizes(A,m,m,PETSC_DECIDE,PETSC_DECIDE);CHKERRQ(ierr);
  ierr = MatSetFromOptions(A);CHKERRQ(ierr);
  ierr = MatSeqAIJSetPreallocation(A,3,PETSC_NULL);CHKERRQ(ierr);
  ierr = MatMPIAIJSetPreallocation(A,3,PETSC_NULL,2,PETSC_NULL);CHKERRQ(ierr);
  ierr = MatSeqBAIJSetPreallocation(A,1,3,PETSC_NULL);CHKERRQ(ierr);
  ierr = MatMPIBAIJSetPreallocation(A,1,3,PETSC_NULL,2,PETSC_NULL);CHKERRQ(ierr);
  ierr = MatSeqSBAIJSetPreallocation(A,1,2,PETSC_NULL);CHKERRQ(ierr);
  ierr = MatMPISBAIJSetPreallocation(A,1,2,PETSC_NULL,1,PETSC_NULL);CHKERRQ(ierr);

  ierr = MatGetSize(A,PETSC_NULL,&N);CHKERRQ(ierr);
  ierr = MatGetOwnershipRange(A,&rstart,&rend);CHKERRQ(ierr);
  for (i=rstart; i<rend; i++) {
    const PetscInt cols[] = {(i+N-1)%N,i,(i+1)%N};
    const PetscScalar vals[] = {1,1,1};
    ierr = MatSetValues(A,1,&i,3,cols,vals,INSERT_VALUES);CHKERRQ(ierr);
  }
  ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr);
  ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr);
  ierr = MatView(A,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);

  ierr = MatPartitioningCreate(PETSC_COMM_WORLD,&part);CHKERRQ(ierr);
  ierr = MatPartitioningSetAdjacency(part,A);CHKERRQ(ierr);
  ierr = MatPartitioningSetFromOptions(part);CHKERRQ(ierr);
  ierr = MatPartitioningApply(part,&is);CHKERRQ(ierr);
  ierr = ISView(is,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr);
  ierr = ISDestroy(&is);CHKERRQ(ierr);
  ierr = MatPartitioningDestroy(&part);CHKERRQ(ierr);
  ierr = MatDestroy(&A);CHKERRQ(ierr);
  ierr = PetscFree2(emptyranks,bigranks);CHKERRQ(ierr);
  ierr = PetscFinalize();
  return 0;
}
开发者ID:Kun-Qu，项目名称:petsc，代码行数:59，代码来源:ex17.c


示例19: ProcessOptions

static PetscErrorCode ProcessOptions(AppCtx *options)
{
  PetscInt       len;
  PetscBool      flg;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  options->dim               = 2;
  options->cellSimplex       = PETSC_TRUE;
  options->spectral          = PETSC_FALSE;
  options->interpolate       = PETSC_FALSE;
  options->refinementLimit   = 0.0;
  options->numFields         = 0;
  options->numComponents     = NULL;
  options->numDof            = NULL;
  options->reuseArray        = PETSC_FALSE;
  options->errors            = PETSC_FALSE;
  options->iterations        = 1;
  options->maxConeTime       = 0.0;
  options->maxClosureTime    = 0.0;
  options->maxVecClosureTime = 0.0;

  ierr = PetscOptionsBegin(PETSC_COMM_SELF, "", "Meshing Problem Options", "DMPLEX");CHKERRQ(ierr);
  ierr = PetscOptionsInt("-dim", "The topological mesh dimension", "ex9.c", options->dim, &options->dim, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-cellSimplex", "Flag for simplices", "ex9.c", options->cellSimplex, &options->cellSimplex, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-spectral", "Flag for spectral element layout", "ex9.c", options->spectral, &options->spectral, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-interpolate", "Flag for mesh interpolation", "ex9.c", options->interpolate, &options->interpolate, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsReal("-refinement_limit", "The maximum volume of a refined cell", "ex9.c", options->refinementLimit, &options->refinementLimit, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-num_fields", "The number of section fields", "ex9.c", options->numFields, &options->numFields, NULL);CHKERRQ(ierr);
  if (options->numFields) {
    len  = options->numFields;
    ierr = PetscMalloc1(len, &options->numComponents);CHKERRQ(ierr);
    ierr = PetscOptionsIntArray("-num_components", "The number of components per field", "ex9.c", options->numComponents, &len, &flg);CHKERRQ(ierr);
    if (flg && (len != options->numFields)) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Length of components array is %d should be %d", len, options->numFields);
  }
  len  = (options->dim+1) * PetscMax(1, options->numFields);
  ierr = PetscMalloc1(len, &options->numDof);CHKERRQ(ierr);
  ierr = PetscOptionsIntArray("-num_dof", "The dof signature for the section", "ex9.c", options->numDof, &len, &flg);CHKERRQ(ierr);
  if (flg && (len != (options->dim+1) * PetscMax(1, options->numFields))) SETERRQ2(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Length of dof array is %d should be %d", len, (options->dim+1) * PetscMax(1, options->numFields));

  /* We are specifying the scalar dof, so augment it for multiple components */
  {
    PetscInt f, d;

    for (f = 0; f < options->numFields; ++f) {
      for (d = 0; d <= options->dim; ++d) options->numDof[f*(options->dim+1)+d] *= options->numComponents[f];
    }
  }

  ierr = PetscOptionsBool("-reuse_array", "Pass in user allocated array to VecGetClosure()", "ex9.c", options->reuseArray, &options->reuseArray, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsBool("-errors", "Treat failures as errors", "ex9.c", options->errors, &options->errors, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsInt("-iterations", "The number of iterations for a query", "ex9.c", options->iterations, &options->iterations, NULL);CHKERRQ(ierr);
  ierr = PetscOptionsReal("-max_cone_time", "The maximum time per run fo

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