PCMGSubMatrixCtx_private Struct Reference

Inheritance diagram for PCMGSubMatrixCtx_private:

Collaboration diagram for PCMGSubMatrixCtx_private:

Public Member Functions
	PCMGSubMatrixCtx_private (Mat a, IS is)
	~PCMGSubMatrixCtx_private ()
MoFEMErrorCode	initData (Vec x)
Public Member Functions inherited from PCMGSubMatrixCtx
	PCMGSubMatrixCtx (Mat a, IS is)
virtual	~PCMGSubMatrixCtx ()

Public Attributes
PetscLogEvent	MOFEM_EVENT_mult
PetscLogEvent	MOFEM_EVENT_sor
bool	isInitisalised
Public Attributes inherited from PCMGSubMatrixCtx
Mat	A
Vec	X
Vec	F
IS	iS
VecScatter	sCat

Friends
template<InsertMode MODE>
MoFEMErrorCode	sub_mat_mult_generic (Mat a, Vec x, Vec f)
MoFEMErrorCode	sub_mat_sor (Mat mat, Vec b, PetscReal omega, MatSORType flag, PetscReal shift, PetscInt its, PetscInt lits, Vec x)

Detailed Description

Definition at line 48 of file PCMGSetUpViaApproxOrders.cpp.

Constructor & Destructor Documentation

PCMGSubMatrixCtx_private()

PCMGSubMatrixCtx_private::PCMGSubMatrixCtx_private ( Mat  a, IS  is  )

inline

Definition at line 49 of file PCMGSetUpViaApproxOrders.cpp.

      : PCMGSubMatrixCtx(a, is), isInitisalised(false) {
    PetscLogEventRegister("PCMGSubMatrixCtx_mult", 0, &MOFEM_EVENT_mult);
    PetscLogEventRegister("PCMGSubMatrixCtx_sor", 0, &MOFEM_EVENT_sor);
  }

~PCMGSubMatrixCtx_private()

PCMGSubMatrixCtx_private::~PCMGSubMatrixCtx_private ( )

inline

Definition at line 54 of file PCMGSetUpViaApproxOrders.cpp.

                              {
    if (isInitisalised) {
      ierr = VecScatterDestroy(&sCat);
      CHKERRABORT(PETSC_COMM_WORLD, ierr);
      ierr = VecDestroy(&X);
      CHKERRABORT(PETSC_COMM_WORLD, ierr);
      ierr = VecDestroy(&F);
      CHKERRABORT(PETSC_COMM_WORLD, ierr);
    }
  }

Member Function Documentation

initData()

MoFEMErrorCode PCMGSubMatrixCtx_private::initData ( Vec  x )

inline

Definition at line 71 of file PCMGSetUpViaApproxOrders.cpp.

                                 {
    MoFEMFunctionBegin;
    if (!isInitisalised) {
      CHKERR MatCreateVecs(A, &X, &F);
      CHKERR VecScatterCreate(X, iS, x, PETSC_NULL, &sCat);
      CHKERR VecZeroEntries(X);
      CHKERR VecZeroEntries(F);
      isInitisalised = true;
    }
    MoFEMFunctionReturn(0);
  }

Friends And Related Function Documentation

sub_mat_mult_generic

template<InsertMode MODE>

MoFEMErrorCode sub_mat_mult_generic ( Mat  a, Vec  x, Vec  f  )

friend

Definition at line 88 of file PCMGSetUpViaApproxOrders.cpp.

                                                         {
  void *void_ctx;
  MoFEMFunctionBegin;
  CHKERR MatShellGetContext(a, &void_ctx);
  PCMGSubMatrixCtx_private *ctx = (PCMGSubMatrixCtx_private *)void_ctx;
  if (!ctx->isInitisalised) {
    CHKERR ctx->initData(x);
  }
  PetscLogEventBegin(ctx->MOFEM_EVENT_mult, 0, 0, 0, 0);
  CHKERR VecScatterBegin(ctx->sCat, x, ctx->X, INSERT_VALUES, SCATTER_REVERSE);
  CHKERR VecScatterEnd(ctx->sCat, x, ctx->X, INSERT_VALUES, SCATTER_REVERSE);
  CHKERR MatMult(ctx->A, ctx->X, ctx->F);
  CHKERR VecScatterBegin(ctx->sCat, ctx->F, f, MODE, SCATTER_FORWARD);
  CHKERR VecScatterEnd(ctx->sCat, ctx->F, f, MODE, SCATTER_FORWARD);
  PetscLogEventEnd(ctx->MOFEM_EVENT_mult, 0, 0, 0, 0);
  MoFEMFunctionReturn(0);
}

sub_mat_sor

MoFEMErrorCode sub_mat_sor ( Mat  mat, Vec  b, PetscReal  omega, MatSORType  flag, PetscReal  shift, PetscInt  its, PetscInt  lits, Vec  x  )

friend

Definition at line 114 of file PCMGSetUpViaApproxOrders.cpp.

                                  {
  void *void_ctx;
  MoFEMFunctionBegin;
  CHKERR MatShellGetContext(mat, &void_ctx);
  PCMGSubMatrixCtx_private *ctx = (PCMGSubMatrixCtx_private *)void_ctx;
  if (!ctx->isInitisalised) {
    CHKERR ctx->initData(x);
  }
  PetscLogEventBegin(ctx->MOFEM_EVENT_sor, 0, 0, 0, 0);
  CHKERR VecScatterBegin(ctx->sCat, b, ctx->X, INSERT_VALUES, SCATTER_REVERSE);
  CHKERR VecScatterEnd(ctx->sCat, b, ctx->X, INSERT_VALUES, SCATTER_REVERSE);
  CHKERR MatSOR(ctx->A, ctx->X, omega, flag, shift, its, lits, ctx->F);
  CHKERR VecScatterBegin(ctx->sCat, ctx->F, x, INSERT_VALUES, SCATTER_FORWARD);
  CHKERR VecScatterEnd(ctx->sCat, ctx->F, x, INSERT_VALUES, SCATTER_FORWARD);
  PetscLogEventEnd(ctx->MOFEM_EVENT_sor, 0, 0, 0, 0);
  MoFEMFunctionReturn(0);
}

Member Data Documentation

isInitisalised

bool PCMGSubMatrixCtx_private::isInitisalised

Definition at line 84 of file PCMGSetUpViaApproxOrders.cpp.

MOFEM_EVENT_mult

PetscLogEvent PCMGSubMatrixCtx_private::MOFEM_EVENT_mult

Definition at line 82 of file PCMGSetUpViaApproxOrders.cpp.

MOFEM_EVENT_sor

PetscLogEvent PCMGSubMatrixCtx_private::MOFEM_EVENT_sor

Definition at line 83 of file PCMGSetUpViaApproxOrders.cpp.

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The documentation for this struct was generated from the following file:

• users_modules/basic_finite_elements/src/impl/PCMGSetUpViaApproxOrders.cpp