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C++ PetscObjectSetName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PetscObjectSetName函数的典型用法代码示例。如果您正苦于以下问题：C++ PetscObjectSetName函数的具体用法？C++ PetscObjectSetName怎么用？C++ PetscObjectSetName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PetscObjectSetName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: SetupDiscretization

PetscErrorCode SetupDiscretization(DM dm, AppCtx *user)
{
  DM              cdm = dm;
  const PetscInt  dim = 2;
  PetscFE         fe[3];
  PetscQuadrature q;
  PetscInt        f;
  MPI_Comm        comm;
  PetscErrorCode  ierr;

  PetscFunctionBeginUser;
  /* Create finite element */
  ierr = PetscObjectGetComm((PetscObject) dm, &comm);CHKERRQ(ierr);
  ierr = PetscFECreateDefault(comm, dim, 1, PETSC_TRUE, "potential_", -1, &fe[0]);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) fe[0], "potential");CHKERRQ(ierr);
  ierr = PetscFEGetQuadrature(fe[0], &q);CHKERRQ(ierr);
  ierr = PetscFECreateDefault(comm, dim, 1, PETSC_TRUE, "charge_", -1, &fe[1]);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) fe[1], "charge");CHKERRQ(ierr);
  ierr = PetscFESetQuadrature(fe[1], q);CHKERRQ(ierr);
  ierr = PetscFECreateDefault(comm, dim, 1, PETSC_TRUE, "multiplier_", -1, &fe[2]);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) fe[2], "multiplier");CHKERRQ(ierr);
  ierr = PetscFESetQuadrature(fe[2], q);CHKERRQ(ierr);
  /* Set discretization and boundary conditions for each mesh */
  for (f = 0; f < 3; ++f) {ierr = DMSetField(dm, f, NULL, (PetscObject) fe[f]);CHKERRQ(ierr);}
  ierr = DMCreateDS(cdm);CHKERRQ(ierr);
  ierr = SetupProblem(dm, user);CHKERRQ(ierr);
  while (cdm) {
    ierr = DMCopyDisc(dm, cdm);CHKERRQ(ierr);
    ierr = DMGetCoarseDM(cdm, &cdm);CHKERRQ(ierr);
  }
  for (f = 0; f < 3; ++f) {ierr = PetscFEDestroy(&fe[f]);CHKERRQ(ierr);}
  PetscFunctionReturn(0);
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:33，代码来源:ex2.c


示例2: SetupDiscretization

PetscErrorCode SetupDiscretization(DM dm, AppCtx *user)
{
  DM              cdm   = dm;
  const PetscInt  dim   = user->dim;
  PetscFE         fe[2];
  PetscQuadrature q;
  Parameter      *param;
  MPI_Comm        comm;
  PetscErrorCode  ierr;

  PetscFunctionBeginUser;
  /* Create finite element */
  ierr = PetscObjectGetComm((PetscObject) dm, &comm);CHKERRQ(ierr);
  ierr = PetscFECreateDefault(comm, dim, dim, user->simplex, "vel_", PETSC_DEFAULT, &fe[0]);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) fe[0], "velocity");CHKERRQ(ierr);
  ierr = PetscFEGetQuadrature(fe[0], &q);CHKERRQ(ierr);
  ierr = PetscFECreateDefault(comm, dim, 1, user->simplex, "pres_", PETSC_DEFAULT, &fe[1]);CHKERRQ(ierr);
  ierr = PetscFESetQuadrature(fe[1], q);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) fe[1], "pressure");CHKERRQ(ierr);
  /* Set discretization and boundary conditions for each mesh */
  ierr = DMSetField(dm, 0, NULL, (PetscObject) fe[0]);CHKERRQ(ierr);
  ierr = DMSetField(dm, 1, NULL, (PetscObject) fe[1]);CHKERRQ(ierr);
  ierr = DMCreateDS(dm);CHKERRQ(ierr);
  ierr = SetupProblem(dm, user);CHKERRQ(ierr);
  ierr = PetscBagGetData(user->bag, (void **) &param);CHKERRQ(ierr);
  while (cdm) {
    ierr = DMCopyDisc(dm, cdm);CHKERRQ(ierr);
    ierr = DMPlexCreateBasisRotation(cdm, param->alpha, 0.0, 0.0);CHKERRQ(ierr);
    ierr = DMGetCoarseDM(cdm, &cdm);CHKERRQ(ierr);
  }
  ierr = PetscFEDestroy(&fe[0]);CHKERRQ(ierr);
  ierr = PetscFEDestroy(&fe[1]);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:petsc，项目名称:petsc，代码行数:34，代码来源:ex71.c


示例3: MatCreateAIJ

void PETSc::Create(
	MPI_Comm Comm, 
	int ilower, 
	int iupper, 
	int d_nz, 
	int o_nz)
{	
	int n	= iupper - ilower +1;
	
	comm 	= Comm;
	iLower	= ilower;	
	iUpper 	= iupper;	
	
	MatCreateAIJ(PETSC_COMM_WORLD,n,n,PETSC_DECIDE,PETSC_DECIDE,
				d_nz,PETSC_NULL,o_nz,PETSC_NULL,&A);	
	ierr = PetscObjectSetName((PetscObject) A, "A");
	ierr = MatSetFromOptions(A);		
	
	// b
	ierr = VecCreate(PETSC_COMM_WORLD, &b);	
	ierr = PetscObjectSetName((PetscObject) b, "b");
	ierr = VecSetSizes(b, n, PETSC_DECIDE);	
	ierr = VecSetFromOptions(b);
	
	ierr = VecCreate(PETSC_COMM_WORLD,&x);
	ierr = PetscObjectSetName((PetscObject) x, "X");
	ierr = VecSetSizes(x, n, PETSC_DECIDE);	
	ierr = VecSetFromOptions(x);
}
开发者ID:tonyguo1，项目名称:LSGFD，代码行数:29，代码来源:solver_petsc.cpp


示例4: main

int main(int argc, char **argv)
{
  PetscErrorCode ierr;
  DM             dm, rdm;
  PetscViewer    vwr;
  PetscBool      flg;
  char           datafile[PETSC_MAX_PATH_LEN];
  MPI_Comm       comm;

  ierr = PetscInitialize(&argc, &argv, NULL, help);
  if (ierr) return ierr;
  comm = PETSC_COMM_WORLD;
  ierr = PetscViewerCreate(comm, &vwr);CHKERRQ(ierr);
  ierr = PetscViewerSetType(vwr, PETSCVIEWERHDF5);CHKERRQ(ierr);
  ierr = PetscViewerFileSetMode(vwr, FILE_MODE_READ);CHKERRQ(ierr);
  ierr = PetscOptionsGetString(NULL, NULL, "-f", datafile, PETSC_MAX_PATH_LEN, &flg);CHKERRQ(ierr);
  if (!flg) SETERRQ(comm, PETSC_ERR_ARG_WRONG, "Must provide meshfile");
  ierr = PetscViewerFileSetName(vwr, datafile);CHKERRQ(ierr);
  ierr = DMCreate(comm, &dm);CHKERRQ(ierr);
  ierr = DMSetType(dm, DMPLEX);CHKERRQ(ierr);
  ierr = DMLoad(dm, vwr);CHKERRQ(ierr);
  ierr = PetscViewerDestroy(&vwr);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject)dm, "BaryDM");CHKERRQ(ierr);
  ierr = DMViewFromOptions(dm, NULL, "-dm_view");CHKERRQ(ierr);
  ierr = DMPlexSetRefinementUniform(dm, PETSC_TRUE);CHKERRQ(ierr);
  ierr = DMRefine(dm, comm, &rdm);CHKERRQ(ierr);
  ierr = DMDestroy(&dm);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject)rdm, "RefinedDM");CHKERRQ(ierr);
  ierr = DMViewFromOptions(rdm, NULL, "-refined_dm_view");CHKERRQ(ierr);
  ierr = DMDestroy(&rdm);CHKERRQ(ierr);
  ierr = PetscFinalize();
  return ierr;
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:33，代码来源:ex30.c


示例5: MatLUFactorNumeric_Matlab

PetscErrorCode MatLUFactorNumeric_Matlab(Mat F,Mat A,const MatFactorInfo *info)
{
    PetscErrorCode ierr;
    size_t         len;
    char           *_A,*name;
    PetscReal      dtcol = info->dtcol;

    PetscFunctionBegin;
    if (F->factortype == MAT_FACTOR_ILU || info->dt > 0) {
        /* the ILU form is not currently registered */
        if (info->dtcol == PETSC_DEFAULT) dtcol = .01;
        F->ops->solve = MatSolve_Matlab;
        F->factortype = MAT_FACTOR_LU;

        ierr = PetscMatlabEnginePut(PETSC_MATLAB_ENGINE_(PetscObjectComm((PetscObject)A)),(PetscObject)A);
        CHKERRQ(ierr);
        _A   = ((PetscObject)A)->name;
        ierr = PetscMatlabEngineEvaluate(PETSC_MATLAB_ENGINE_(PetscObjectComm((PetscObject)A)),"info_%s = struct('droptol',%g,'thresh',%g);",_A,info->dt,dtcol);
        CHKERRQ(ierr);
        ierr = PetscMatlabEngineEvaluate(PETSC_MATLAB_ENGINE_(PetscObjectComm((PetscObject)A)),"[l_%s,u_%s,p_%s] = luinc(%s',info_%s);",_A,_A,_A,_A,_A);
        CHKERRQ(ierr);
        ierr = PetscMatlabEngineEvaluate(PETSC_MATLAB_ENGINE_(PetscObjectComm((PetscObject)A)),"%s = 0;",_A);
        CHKERRQ(ierr);

        ierr = PetscStrlen(_A,&len);
        CHKERRQ(ierr);
        ierr = PetscMalloc1(len+2,&name);
        CHKERRQ(ierr);
        sprintf(name,"_%s",_A);
        ierr = PetscObjectSetName((PetscObject)F,name);
        CHKERRQ(ierr);
        ierr = PetscFree(name);
        CHKERRQ(ierr);
    } else {
        ierr = PetscMatlabEnginePut(PETSC_MATLAB_ENGINE_(PetscObjectComm((PetscObject)A)),(PetscObject)A);
        CHKERRQ(ierr);
        _A   = ((PetscObject)A)->name;
        ierr = PetscMatlabEngineEvaluate(PETSC_MATLAB_ENGINE_(PetscObjectComm((PetscObject)A)),"[l_%s,u_%s,p_%s] = lu(%s',%g);",_A,_A,_A,_A,dtcol);
        CHKERRQ(ierr);
        ierr = PetscMatlabEngineEvaluate(PETSC_MATLAB_ENGINE_(PetscObjectComm((PetscObject)A)),"%s = 0;",_A);
        CHKERRQ(ierr);
        ierr = PetscStrlen(_A,&len);
        CHKERRQ(ierr);
        ierr = PetscMalloc1(len+2,&name);
        CHKERRQ(ierr);
        sprintf(name,"_%s",_A);
        ierr = PetscObjectSetName((PetscObject)F,name);
        CHKERRQ(ierr);
        ierr = PetscFree(name);
        CHKERRQ(ierr);

        F->ops->solve = MatSolve_Matlab;
    }
    PetscFunctionReturn(0);
}
开发者ID:petsc，项目名称:petsc，代码行数:55，代码来源:aijmatlab.c


示例6: main

int main(int argc, char **argv)
{
  SNES           snes; /* nonlinear solver */
  DM             dm;   /* problem definition */
  Vec            u, r; /* solution and residual */
  AppCtx         user; /* user-defined work context */
  PetscErrorCode ierr;

  ierr = PetscInitialize(&argc, &argv, NULL,help);if (ierr) return ierr;
  ierr = ProcessOptions(PETSC_COMM_WORLD, &user);CHKERRQ(ierr);
  ierr = PetscBagCreate(PETSC_COMM_WORLD, sizeof(Parameter), &user.bag);CHKERRQ(ierr);
  ierr = SetupParameters(&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);
  /* Setup problem */
  ierr = PetscMalloc(2 * sizeof(void (*)(const PetscReal[], PetscScalar *, void *)), &user.exactFuncs);CHKERRQ(ierr);
  ierr = SetupDiscretization(dm, &user);CHKERRQ(ierr);
  ierr = DMPlexCreateClosureIndex(dm, NULL);CHKERRQ(ierr);

  ierr = DMCreateGlobalVector(dm, &u);CHKERRQ(ierr);
  ierr = VecDuplicate(u, &r);CHKERRQ(ierr);

  ierr = DMPlexSetSNESLocalFEM(dm,&user,&user,&user);CHKERRQ(ierr);

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

  {
    Parameter *param;
    void      *ctxs[2];

    ierr = PetscBagGetData(user.bag, (void **) &param);CHKERRQ(ierr);
    ctxs[0] = ctxs[1] = param;
    ierr = DMProjectFunction(dm, 0.0, user.exactFuncs, ctxs, INSERT_ALL_VALUES, u);CHKERRQ(ierr);
    ierr = PetscObjectSetName((PetscObject) u, "Exact Solution");CHKERRQ(ierr);
    ierr = VecViewFromOptions(u, NULL, "-exact_vec_view");CHKERRQ(ierr);
  }
  ierr = DMSNESCheckFromOptions(snes, u, NULL, NULL);CHKERRQ(ierr);
  ierr = VecSet(u, 0.0);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) u, "Solution");CHKERRQ(ierr);
  ierr = SNESSolve(snes, NULL, u);CHKERRQ(ierr);
  ierr = VecViewFromOptions(u, NULL, "-sol_vec_view");CHKERRQ(ierr);

  ierr = VecDestroy(&u);CHKERRQ(ierr);
  ierr = VecDestroy(&r);CHKERRQ(ierr);
  ierr = PetscFree(user.exactFuncs);CHKERRQ(ierr);
  ierr = DMDestroy(&dm);CHKERRQ(ierr);
  ierr = SNESDestroy(&snes);CHKERRQ(ierr);
  ierr = PetscBagDestroy(&user.bag);CHKERRQ(ierr);
  ierr = PetscFinalize();
  return ierr;
}
开发者ID:petsc，项目名称:petsc，代码行数:53，代码来源:ex71.c


示例7: CheckMat

PetscErrorCode CheckMat(Mat A, Mat B, PetscBool usemult, const char* func)
{
  Mat            Bcheck;
  PetscReal      error;
  PetscErrorCode ierr;

  PetscFunctionBeginUser;
  if (!usemult) {
    if (B) {
      MatType Btype;

      ierr = MatGetType(B,&Btype);CHKERRQ(ierr);
      ierr = MatConvert(A,Btype,MAT_INITIAL_MATRIX,&Bcheck);CHKERRQ(ierr);
    } else {
      ierr = MatConvert(A,MATAIJ,MAT_INITIAL_MATRIX,&Bcheck);CHKERRQ(ierr);
    }
    if (B) { /* if B is present, subtract it */
      ierr = MatAXPY(Bcheck,-1.,B,DIFFERENT_NONZERO_PATTERN);CHKERRQ(ierr);
    }
    ierr = MatNorm(Bcheck,NORM_INFINITY,&error);CHKERRQ(ierr);
    if (error > PETSC_SQRT_MACHINE_EPSILON) {
      ISLocalToGlobalMapping rl2g,cl2g;

      ierr = PetscObjectSetName((PetscObject)Bcheck,"Assembled Bcheck");CHKERRQ(ierr);
      ierr = MatView(Bcheck,NULL);CHKERRQ(ierr);
      if (B) {
        ierr = PetscObjectSetName((PetscObject)B,"Assembled AIJ");CHKERRQ(ierr);
        ierr = MatView(B,NULL);CHKERRQ(ierr);
        ierr = MatDestroy(&Bcheck);CHKERRQ(ierr);
        ierr = MatConvert(A,MATAIJ,MAT_INITIAL_MATRIX,&Bcheck);CHKERRQ(ierr);
        ierr = PetscObjectSetName((PetscObject)Bcheck,"Assembled IS");CHKERRQ(ierr);
        ierr = MatView(Bcheck,NULL);CHKERRQ(ierr);
      }
      ierr = MatDestroy(&Bcheck);CHKERRQ(ierr);
      ierr = PetscObjectSetName((PetscObject)A,"MatIS");CHKERRQ(ierr);
      ierr = MatView(A,NULL);CHKERRQ(ierr);
      ierr = MatGetLocalToGlobalMapping(A,&rl2g,&cl2g);CHKERRQ(ierr);
      ierr = ISLocalToGlobalMappingView(rl2g,NULL);CHKERRQ(ierr);
      ierr = ISLocalToGlobalMappingView(cl2g,NULL);CHKERRQ(ierr);
      SETERRQ2(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"ERROR ON %s: %g",func,error);
    }
    ierr = MatDestroy(&Bcheck);CHKERRQ(ierr);
  } else {
    PetscBool ok,okt;

    ierr = MatMultEqual(A,B,3,&ok);CHKERRQ(ierr);
    ierr = MatMultTransposeEqual(A,B,3,&okt);CHKERRQ(ierr);
    if (!ok || !okt) SETERRQ3(PETSC_COMM_WORLD,PETSC_ERR_PLIB,"ERROR ON %s: mult ok ?  %d, multtranspose ok ? %d",func,ok,okt);
  }
  PetscFunctionReturn(0);
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:51，代码来源:ex23.c


示例8: CreateMesh

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);
}
开发者ID:tom-klotz，项目名称:petsc，代码行数:51，代码来源:ex9.c


示例9: EvaluateJacobian

static PetscErrorCode EvaluateJacobian(Tao tao, Vec X, Mat J, Mat JPre, void *ptr)
{
  AppCtx         *user = (AppCtx *)ptr;
  PetscErrorCode  ierr;

  PetscFunctionBegin;
  ierr = PetscObjectSetName((PetscObject)X,"X");CHKERRQ(ierr);
  ierr = PetscMatlabEnginePut(user->mengine,(PetscObject)X);CHKERRQ(ierr);
  ierr = PetscMatlabEngineEvaluate(user->mengine,"J = jac(X);");CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject)J,"J");CHKERRQ(ierr);
  ierr = PetscMatlabEngineGet(user->mengine,(PetscObject)J);CHKERRQ(ierr);
  ierr = MatAssemblyBegin(J,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr);
  ierr = MatAssemblyEnd(J,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:15，代码来源:matlab_ls_test.c


示例10: TaoPounders

static PetscErrorCode TaoPounders(AppCtx *user)
{
  PetscErrorCode ierr;
  Tao            tao;
  Vec            X, F;
  Mat            J;
  char           buf[1024];

  PetscFunctionBegin;

  /* Set the values for the algorithm options we want to use */
  sprintf(buf,"%d",user->nfmax);
  ierr = PetscOptionsSetValue(NULL,"-tao_max_funcs",buf);CHKERRQ(ierr);
  sprintf(buf,"%d",user->npmax);
  ierr = PetscOptionsSetValue(NULL,"-tao_pounders_npmax",buf);CHKERRQ(ierr);
  sprintf(buf,"%5.4e",user->delta);
  ierr = PetscOptionsSetValue(NULL,"-tao_pounders_delta",buf);CHKERRQ(ierr);

  /* Create the TAO objects and set the type */
  ierr = TaoCreate(PETSC_COMM_SELF,&tao);CHKERRQ(ierr);

  /* Create starting point and initialize */
  ierr = VecCreateSeq(PETSC_COMM_SELF,user->n,&X);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject)X,"X0");CHKERRQ(ierr);
  ierr = PetscMatlabEngineGet(user->mengine,(PetscObject)X);CHKERRQ(ierr);
  ierr = TaoSetInitialVector(tao,X);CHKERRQ(ierr);

  /* Create residuals vector and set residual function */  
  ierr = VecCreateSeq(PETSC_COMM_SELF,user->m,&F);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject)F,"F");CHKERRQ(ierr);
  ierr = TaoSetResidualRoutine(tao,F,EvaluateResidual,(void*)user);CHKERRQ(ierr);

  /* Create Jacobian matrix and set residual Jacobian routine */  
  ierr = MatCreateSeqAIJ(PETSC_COMM_SELF,user->m,user->n,user->n,NULL,&J);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject)J,"J");CHKERRQ(ierr);
  ierr = TaoSetResidualJacobianRoutine(tao,J,J,EvaluateJacobian,(void*)user);CHKERRQ(ierr);

  /* Solve the problem */
  ierr = TaoSetType(tao,TAOPOUNDERS);CHKERRQ(ierr);
  ierr = TaoSetFromOptions(tao);CHKERRQ(ierr);
  ierr = TaoSolve(tao);CHKERRQ(ierr);

  /* Finish the problem */
  ierr = VecDestroy(&X);CHKERRQ(ierr);
  ierr = VecDestroy(&F);CHKERRQ(ierr);
  ierr = TaoDestroy(&tao);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:48，代码来源:matlab_ls_test.c


示例11: PetscViewerCreate

// Write the sub mesh into a HDF5 file.
PetscErrorCode ProbeVolume::writeSubMeshHDF5(const std::string &filePath)
{
    PetscErrorCode ierr;

    PetscFunctionBeginUser;

    // only the first process in the communicator write the sub-mesh into a file
    if (commRank == 0)
    {
        // because only one process is involved in writing the sub-mesh,
        // we need to create a temporary viewer
        PetscViewer viewer2;
        ierr = PetscViewerCreate(PETSC_COMM_SELF, &viewer2); CHKERRQ(ierr);
        ierr = PetscViewerSetType(viewer2, PETSCVIEWERHDF5); CHKERRQ(ierr);
        ierr = PetscViewerFileSetMode(viewer2, FILE_MODE_WRITE); CHKERRQ(ierr);
        ierr = PetscViewerFileSetName(
            viewer2, filePath.c_str()); CHKERRQ(ierr);
        ierr = PetscViewerHDF5PushGroup(viewer2, "mesh"); CHKERRQ(ierr);
        std::vector<std::string> dirs{"x", "y", "z"};
        for (unsigned int d = 0; d < coord.size(); ++d)
        {
            Vec tmp;
            ierr = VecCreateSeqWithArray(PETSC_COMM_SELF, 1, nPtsDir[d],
                                         &coord[d][0], &tmp); CHKERRQ(ierr);
            ierr = PetscObjectSetName((PetscObject) tmp,
                                      dirs[d].c_str()); CHKERRQ(ierr);
            ierr = VecView(tmp, viewer2); CHKERRQ(ierr);
            ierr = VecDestroy(&tmp); CHKERRQ(ierr);
        }
        ierr = PetscViewerDestroy(&viewer2); CHKERRQ(ierr);
    }

    PetscFunctionReturn(0);
}  // ProbeVolume::writeSubMeshHDF5
开发者ID:barbagroup，项目名称:PetIBM，代码行数:35，代码来源:probes.cpp


示例12: BVResize_Mat

PetscErrorCode BVResize_Mat(BV bv,PetscInt m,PetscBool copy)
{
  PetscErrorCode ierr;
  BV_MAT         *ctx = (BV_MAT*)bv->data;
  PetscScalar    *pA,*pnew;
  Mat            A;
  char           str[50];

  PetscFunctionBegin;
  ierr = MatCreateDense(PetscObjectComm((PetscObject)bv->t),bv->n,PETSC_DECIDE,PETSC_DECIDE,m,NULL,&A);CHKERRQ(ierr);
  ierr = MatAssemblyBegin(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr);
  ierr = MatAssemblyEnd(A,MAT_FINAL_ASSEMBLY);CHKERRQ(ierr);
  ierr = PetscLogObjectParent((PetscObject)bv,(PetscObject)A);CHKERRQ(ierr);
  if (((PetscObject)bv)->name) {
    ierr = PetscSNPrintf(str,50,"%s_0",((PetscObject)bv)->name);CHKERRQ(ierr);
    ierr = PetscObjectSetName((PetscObject)A,str);CHKERRQ(ierr);
  }
  if (copy) {
    ierr = MatDenseGetArray(ctx->A,&pA);CHKERRQ(ierr);
    ierr = MatDenseGetArray(A,&pnew);CHKERRQ(ierr);
    ierr = PetscMemcpy(pnew,pA,PetscMin(m,bv->m)*bv->n*sizeof(PetscScalar));CHKERRQ(ierr);
    ierr = MatDenseRestoreArray(ctx->A,&pA);CHKERRQ(ierr);
    ierr = MatDenseRestoreArray(A,&pnew);CHKERRQ(ierr);
  }
  ierr = MatDestroy(&ctx->A);CHKERRQ(ierr);
  ctx->A = A;
  PetscFunctionReturn(0);
}
开发者ID:OpenCMISS-Dependencies，项目名称:slepc，代码行数:28，代码来源:bvmat.c


示例13: PetscViewerGetSingleton_ASCII

PetscErrorCode PetscViewerGetSingleton_ASCII(PetscViewer viewer,PetscViewer *outviewer)
{
  PetscMPIInt       rank;
  PetscErrorCode    ierr;
  PetscViewer_ASCII *vascii = (PetscViewer_ASCII*)viewer->data,*ovascii;
  const char        *name;

  PetscFunctionBegin;
  if (vascii->sviewer) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"Singleton already obtained from PetscViewer and not restored");
  ierr         = PetscViewerCreate(PETSC_COMM_SELF,outviewer);CHKERRQ(ierr);
  ierr         = PetscViewerSetType(*outviewer,PETSCVIEWERASCII);CHKERRQ(ierr);
  ovascii      = (PetscViewer_ASCII*)(*outviewer)->data;
  ovascii->fd  = vascii->fd;
  ovascii->tab = vascii->tab;

  vascii->sviewer = *outviewer;

  (*outviewer)->format  = viewer->format;

  ierr = PetscObjectGetName((PetscObject)viewer,&name);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject)(*outviewer),name);CHKERRQ(ierr);

  ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)viewer),&rank);CHKERRQ(ierr);
  ((PetscViewer_ASCII*)((*outviewer)->data))->bviewer = viewer;
  (*outviewer)->ops->destroy = PetscViewerDestroy_ASCII_Singleton;
  if (rank) (*outviewer)->ops->flush = 0;
  else      (*outviewer)->ops->flush = PetscViewerFlush_ASCII_Singleton_0;
  PetscFunctionReturn(0);
}
开发者ID:fengyuqi，项目名称:petsc，代码行数:29，代码来源:filev.c


示例14: CreateMesh

PetscErrorCode CreateMesh(MPI_Comm comm, AppCtx *user, DM *dm)
{
  PetscInt       dim             = user->dim;
  PetscBool      interpolate     = user->interpolate;
  PetscReal      refinementLimit = user->refinementLimit;
  const char    *partitioner     = "chaco";
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = PetscLogEventBegin(user->createMeshEvent,0,0,0,0);CHKERRQ(ierr);
  ierr = DMComplexCreateBoxMesh(comm, dim, interpolate, dm);CHKERRQ(ierr);
  {
    DM refinedMesh     = PETSC_NULL;
    DM distributedMesh = PETSC_NULL;

    /* Refine mesh using a volume constraint */
    ierr = DMComplexSetRefinementLimit(*dm, refinementLimit);CHKERRQ(ierr);
    ierr = DMRefine(*dm, comm, &refinedMesh);CHKERRQ(ierr);
    if (refinedMesh) {
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = refinedMesh;
    }
    /* Distribute mesh over processes */
    ierr = DMComplexDistribute(*dm, partitioner, &distributedMesh);CHKERRQ(ierr);
    if (distributedMesh) {
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = distributedMesh;
    }
  }
  ierr = PetscObjectSetName((PetscObject) *dm, "Simplical Mesh");CHKERRQ(ierr);
  ierr = DMSetFromOptions(*dm);CHKERRQ(ierr);
  ierr = PetscLogEventEnd(user->createMeshEvent,0,0,0,0);CHKERRQ(ierr);
  user->dm = *dm;
  PetscFunctionReturn(0);
}
开发者ID:Kun-Qu，项目名称:petsc，代码行数:35，代码来源:ex1.c


示例15: DMPlexBuildCoordinates_Private

/*
  This takes as input the coordinates for each vertex
*/
PetscErrorCode DMPlexBuildCoordinates_Private(DM dm, PetscInt spaceDim, PetscInt numCells, PetscInt numVertices, const double vertexCoords[])
{
  PetscSection   coordSection;
  Vec            coordinates;
  PetscScalar   *coords;
  PetscInt       coordSize, v, d;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = DMPlexGetCoordinateSection(dm, &coordSection);CHKERRQ(ierr);
  ierr = PetscSectionSetNumFields(coordSection, 1);CHKERRQ(ierr);
  ierr = PetscSectionSetFieldComponents(coordSection, 0, spaceDim);CHKERRQ(ierr);
  ierr = PetscSectionSetChart(coordSection, numCells, numCells + numVertices);CHKERRQ(ierr);
  for (v = numCells; v < numCells+numVertices; ++v) {
    ierr = PetscSectionSetDof(coordSection, v, spaceDim);CHKERRQ(ierr);
    ierr = PetscSectionSetFieldDof(coordSection, v, 0, spaceDim);CHKERRQ(ierr);
  }
  ierr = PetscSectionSetUp(coordSection);CHKERRQ(ierr);
  ierr = PetscSectionGetStorageSize(coordSection, &coordSize);CHKERRQ(ierr);
  ierr = VecCreate(PetscObjectComm((PetscObject)dm), &coordinates);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) coordinates, "coordinates");CHKERRQ(ierr);
  ierr = VecSetSizes(coordinates, coordSize, PETSC_DETERMINE);CHKERRQ(ierr);
  ierr = VecSetFromOptions(coordinates);CHKERRQ(ierr);
  ierr = VecGetArray(coordinates, &coords);CHKERRQ(ierr);
  for (v = 0; v < numVertices; ++v) {
    for (d = 0; d < spaceDim; ++d) {
      coords[v*spaceDim+d] = vertexCoords[v*spaceDim+d];
    }
  }
  ierr = VecRestoreArray(coordinates, &coords);CHKERRQ(ierr);
  ierr = DMSetCoordinatesLocal(dm, coordinates);CHKERRQ(ierr);
  ierr = VecDestroy(&coordinates);CHKERRQ(ierr);
  PetscFunctionReturn(0);
}
开发者ID:feelpp，项目名称:debian-petsc，代码行数:37，代码来源:plexcreate.c


示例16: CreateMesh

PetscErrorCode CreateMesh(MPI_Comm comm, AppCtx *user, DM *dm)
{
  PetscInt       dim             = user->dim;
  PetscBool      interpolate     = user->interpolate;
  PetscReal      refinementLimit = user->refinementLimit;
  PetscErrorCode ierr;

  PetscFunctionBegin;
  ierr = PetscLogEventBegin(user->createMeshEvent,0,0,0,0);CHKERRQ(ierr);
  ierr = DMMeshCreateBoxMesh(comm, dim, interpolate, dm);CHKERRQ(ierr);
  {
    DM refinedMesh = PETSC_NULL;

    /* Refine mesh using a volume constraint */
    ierr = DMMeshRefine(*dm, refinementLimit, interpolate, &refinedMesh);CHKERRQ(ierr);
    if (refinedMesh) {
      ierr = DMDestroy(dm);CHKERRQ(ierr);
      *dm  = refinedMesh;
    }
  }
  ierr = PetscObjectSetName((PetscObject) *dm, "Serial Mesh");CHKERRQ(ierr);
  ierr = DMSetFromOptions(*dm);CHKERRQ(ierr);
  ierr = PetscLogEventEnd(user->createMeshEvent,0,0,0,0);CHKERRQ(ierr);
  user->dm = *dm;
  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17: main

int main(int argc, char **argv)
{
  DM             dm;   /* Problem specification */
  SNES           snes; /* Nonlinear solver */
  Vec            u;    /* Solutions */
  AppCtx         user; /* User-defined work context */
  PetscErrorCode ierr;

  ierr = PetscInitialize(&argc, &argv, NULL,help);if (ierr) return ierr;
  ierr = ProcessOptions(PETSC_COMM_WORLD, &user);CHKERRQ(ierr);
  /* Primal system */
  ierr = SNESCreate(PETSC_COMM_WORLD, &snes);CHKERRQ(ierr);
  ierr = CreateMesh(PETSC_COMM_WORLD, &user, &dm);CHKERRQ(ierr);
  ierr = SNESSetDM(snes, dm);CHKERRQ(ierr);
  ierr = SetupFE(dm, user.dim, user.simplex, "displacement", SetupPrimalProblem, &user);CHKERRQ(ierr);
  ierr = DMCreateGlobalVector(dm, &u);CHKERRQ(ierr);
  ierr = VecSet(u, 0.0);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) u, "displacement");CHKERRQ(ierr);
  ierr = DMPlexSetSNESLocalFEM(dm, &user, &user, &user);CHKERRQ(ierr);
  ierr = SNESSetFromOptions(snes);CHKERRQ(ierr);
  ierr = DMSNESCheckFromOptions(snes, u, NULL, NULL);CHKERRQ(ierr);
  ierr = SNESSolve(snes, NULL, u);CHKERRQ(ierr);
  ierr = SNESGetSolution(snes, &u);CHKERRQ(ierr);
  ierr = VecViewFromOptions(u, NULL, "-displacement_view");CHKERRQ(ierr);
  /* Cleanup */
  ierr = VecDestroy(&u);CHKERRQ(ierr);
  ierr = SNESDestroy(&snes);CHKERRQ(ierr);
  ierr = DMDestroy(&dm);CHKERRQ(ierr);
  ierr = PetscFinalize();
  return ierr;
}
开发者ID:firedrakeproject，项目名称:petsc，代码行数:31，代码来源:ex17.c


示例18: GetDotMat

PetscErrorCode GetDotMat(MPI_Comm comm, Mat *Bout, int Nx, int Ny, int Nz)
{
  int Nxyz=Nx*Ny*Nz, N=6*Nx*Ny*Nz, Nc=3;
  Mat B;
  int ns,ne,i,j,ic;
  double value[3]={1,1,1};
  int col[3];
  PetscErrorCode ierr;
  
  MatCreate(comm, &B);
  MatSetType(B,MATMPIAIJ);
  MatSetSizes(B,PETSC_DECIDE, PETSC_DECIDE, N, N);
  MatMPIAIJSetPreallocation(B, 3, PETSC_NULL, 3, PETSC_NULL);

  ierr = MatGetOwnershipRange(B, &ns, &ne); CHKERRQ(ierr);

  for (i = ns; i < ne; ++i) {
    j=i;
    ic = (j /= Nxyz) % Nc;
    
    if(ic==0){col[0]=i,        col[1]=i+Nxyz, col[2]=i+2*Nxyz;}
    if(ic==1){col[0]=i-Nxyz,   col[1]=i,      col[2]=i+Nxyz;  }
    if(ic==2){col[0]=i-2*Nxyz, col[1]=i-Nxyz, col[2]=i;       }

    ierr = MatSetValues(B,1,&i,3,col,value,INSERT_VALUES); CHKERRQ(ierr);
  }

  ierr = MatAssemblyBegin(B, MAT_FINAL_ASSEMBLY); CHKERRQ(ierr);
  ierr = MatAssemblyEnd(B, MAT_FINAL_ASSEMBLY); CHKERRQ(ierr);

  ierr = PetscObjectSetName((PetscObject) B,"DotMatrix"); CHKERRQ(ierr);
  
  *Bout = B;
  PetscFunctionReturn(0);
}
开发者ID:zinlin-harvard，项目名称:Opt_Cartesian，代码行数:35，代码来源:MatVecMaker.c


示例19: PetscViewerGetSubcomm_ASCII

PetscErrorCode PetscViewerGetSubcomm_ASCII(PetscViewer viewer,MPI_Comm subcomm,PetscViewer *outviewer)
{
  PetscErrorCode    ierr;
  PetscViewer_ASCII *vascii = (PetscViewer_ASCII *)viewer->data,*ovascii;
  const char        *name;

  PetscFunctionBegin;
  if (vascii->sviewer) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ORDER,"Subcomm viewer already obtained from PetscViewer and not restored");
  /* Note that we need to open vascii->filename for the subcomm:
     we can't count on reusing viewer's fd since the root in comm and subcomm may differ.
     Further, if the subcomm happens to be the same as comm, PetscViewerASCIIOpen() will
     will return the current viewer, having increfed it.
   */
  ierr         = PetscViewerASCIIOpen(subcomm,vascii->filename, outviewer);CHKERRQ(ierr);
  if(*outviewer == viewer) PetscFunctionReturn(0);
  ovascii      = (PetscViewer_ASCII*)(*outviewer)->data;

  ovascii->tab = vascii->tab;
  vascii->sviewer = *outviewer;

  (*outviewer)->format     = viewer->format;
  (*outviewer)->iformat    = viewer->iformat;

  ierr = PetscObjectGetName((PetscObject)viewer,&name);CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject)(*outviewer),name);CHKERRQ(ierr);

  ((PetscViewer_ASCII*)((*outviewer)->data))->bviewer = viewer;
  (*outviewer)->ops->destroy = PetscViewerDestroy_ASCII_Subcomm;
  PetscFunctionReturn(0);
}
开发者ID:Kun-Qu，项目名称:petsc，代码行数:30，代码来源:filev.c


示例20: DMLabelCreate

/*
  DMLabelMakeValid_Private - Transfer stratum data from the hash format to the sorted list format

  Input parameter:
+ label - The DMLabel
- v - The stratum value

  Output parameter:
. label - The DMLabel with stratum in sorted list format

  Level: developer

.seealso: DMLabelCreate()
*/
static PetscErrorCode DMLabelMakeValid_Private(DMLabel label, PetscInt v)
{
  PetscInt       off;
  PetscInt       *pointArray;
  PetscErrorCode ierr;

  if (label->validIS[v]) return 0;
  if (v >= label->numStrata) SETERRQ1(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Trying to access invalid stratum %D in DMLabelMakeValid_Private\n", v);
  PetscFunctionBegin;
  PetscHashISize(label->ht[v], label->stratumSizes[v]);

  ierr = PetscMalloc1(label->stratumSizes[v], &pointArray);CHKERRQ(ierr);
  off  = 0;
  ierr = PetscHashIGetKeys(label->ht[v], &off, pointArray);CHKERRQ(ierr);
  if (off != label->stratumSizes[v]) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_WRONG, "Invalid number of contributed points %D from value %D should be %D", off, label->stratumValues[v], label->stratumSizes[v]);
  PetscHashIClear(label->ht[v]);
  ierr = PetscSortInt(label->stratumSizes[v], pointArray);CHKERRQ(ierr);
  if (label->bt) {
    PetscInt p;

    for (p = 0; p < label->stratumSizes[v]; ++p) {
      const PetscInt point = pointArray[p];

      if ((point < label->pStart) || (point >= label->pEnd)) SETERRQ3(PETSC_COMM_SELF, PETSC_ERR_ARG_OUTOFRANGE, "Label point %D is not in [%D, %D)", point, label->pStart, label->pEnd);
      ierr = PetscBTSet(label->bt, point - label->pStart);CHKERRQ(ierr);
    }
  }
  ierr = ISCreateGeneral(PETSC_COMM_SELF,label->stratumSizes[v],pointArray,PETSC_OWN_POINTER,&(label->points[v]));CHKERRQ(ierr);
  ierr = PetscObjectSetName((PetscObject) (label->points[v]), "indices");CHKERRQ(ierr);
  label->validIS[v] = PETSC_TRUE;
  ++label->state;
  PetscFunctionReturn(0);
}
开发者ID:ziolai，项目名称:petsc，代码行数:47，代码来源:dmlabel.c



注：本文中的PetscObjectSetName函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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