Operator the left hand side matrix. More...

#include <users_modules/tutorials/scl-11/src/PoissonDiscontinousGalerkin.hpp>

Inheritance diagram for Poisson2DiscontGalerkinOperators::OpL2LhsPenalty:

Collaboration diagram for Poisson2DiscontGalerkinOperators::OpL2LhsPenalty:

Public Member Functions
	OpL2LhsPenalty (boost::shared_ptr< FaceSideEle > side_fe_ptr)
	Construct a new OpL2LhsPenalty. More...

MoFEMErrorCode	doWork (int side, EntityType type, EntitiesFieldData::EntData &data)

Public Member Functions inherited from MoFEM::FaceElementForcesAndSourcesCore::UserDataOperator
double	getArea ()
	get area of face More...

VectorDouble &	getNormal ()
	get triangle normal More...

VectorDouble &	getTangent1 ()
	get triangle tangent 1 More...

VectorDouble &	getTangent2 ()
	get triangle tangent 2 More...

auto	getFTensor1Normal ()
	get normal as tensor More...

auto	getFTensor1Tangent1 ()
	get tangentOne as tensor More...

auto	getFTensor1Tangent2 ()
	get tangentTwo as tensor More...

int	getNumNodes ()
	get element number of nodes More...

const EntityHandle *	getConn ()
	get element connectivity More...

VectorDouble &	getCoords ()
	get triangle coordinates More...

auto	getFTensor1Coords ()
	get get coords at gauss points More...

MatrixDouble &	getNormalsAtGaussPts ()
	if higher order geometry return normals at Gauss pts. More...

ublas::matrix_row< MatrixDouble >	getNormalsAtGaussPts (const int gg)
	if higher order geometry return normals at Gauss pts. More...

MatrixDouble &	getTangent1AtGaussPts ()
	if higher order geometry return tangent vector to triangle at Gauss pts. More...

MatrixDouble &	getTangent2AtGaussPts ()
	if higher order geometry return tangent vector to triangle at Gauss pts. More...

auto	getFTensor1NormalsAtGaussPts ()
	get normal at integration points More...

auto	getFTensor1Tangent1AtGaussPts ()
	get tangent 1 at integration points More...

auto	getFTensor1Tangent2AtGaussPts ()
	get tangent 2 at integration points More...

FaceElementForcesAndSourcesCore *	getFaceFE ()
	return pointer to Generic Triangle Finite Element object More...

MoFEMErrorCode	loopSideVolumes (const string fe_name, VolumeElementForcesAndSourcesCoreOnSide &fe_method)

Public Member Functions inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
	UserDataOperator (const FieldSpace space, const char type=OPSPACE, const bool symm=true)

	UserDataOperator (const std::string field_name, const char type, const bool symm=true)

	UserDataOperator (const std::string row_field_name, const std::string col_field_name, const char type, const bool symm=true)

boost::shared_ptr< const NumeredEntFiniteElement >	getNumeredEntFiniteElementPtr () const
	Return raw pointer to NumeredEntFiniteElement. More...

EntityHandle	getFEEntityHandle () const
	Return finite element entity handle. More...

int	getFEDim () const
	Get dimension of finite element. More...

EntityType	getFEType () const
	Get dimension of finite element. More...

boost::weak_ptr< SideNumber >	getSideNumberPtr (const int side_number, const EntityType type)
	Get the side number pointer. More...

EntityHandle	getSideEntity (const int side_number, const EntityType type)
	Get the side entity. More...

int	getNumberOfNodesOnElement () const
	Get the number of nodes on finite element. More...

MoFEMErrorCode	getProblemRowIndices (const std::string filed_name, const EntityType type, const int side, VectorInt &indices) const
	Get row indices. More...

MoFEMErrorCode	getProblemColIndices (const std::string filed_name, const EntityType type, const int side, VectorInt &indices) const
	Get col indices. More...

const FEMethod *	getFEMethod () const
	Return raw pointer to Finite Element Method object. More...

int	getOpType () const
	Get operator types. More...

void	setOpType (const OpType type)
	Set operator type. More...

void	addOpType (const OpType type)
	Add operator type. More...

int	getNinTheLoop () const
	get number of finite element in the loop More...

int	getLoopSize () const
	get size of elements in the loop More...

std::string	getFEName () const
	Get name of the element. More...

ForcesAndSourcesCore *	getPtrFE () const

ForcesAndSourcesCore *	getSidePtrFE () const

ForcesAndSourcesCore *	getRefinePtrFE () const

const PetscData::Switches &	getDataCtx () const

const KspMethod::KSPContext	getKSPCtx () const

const SnesMethod::SNESContext	getSNESCtx () const

const TSMethod::TSContext	getTSCtx () const

Vec	getKSPf () const

Mat	getKSPA () const

Mat	getKSPB () const

Vec	getSNESf () const

Vec	getSNESx () const

Mat	getSNESA () const

Mat	getSNESB () const

Vec	getTSu () const

Vec	getTSu_t () const

Vec	getTSu_tt () const

Vec	getTSf () const

Mat	getTSA () const

Mat	getTSB () const

int	getTSstep () const

double	getTStime () const

double	getTStimeStep () const

double	getTSa () const

double	getTSaa () const

MatrixDouble &	getGaussPts ()
	matrix of integration (Gauss) points for Volume Element More...

auto	getFTensor0IntegrationWeight ()
	Get integration weights. More...

MatrixDouble &	getCoordsAtGaussPts ()
	Gauss points and weight, matrix (nb. of points x 3) More...

auto	getFTensor1CoordsAtGaussPts ()
	Get coordinates at integration points assuming linear geometry. More...

double	getMeasure () const
	get measure of element More...

double &	getMeasure ()
	get measure of element More...

MoFEMErrorCode	loopSide (const string &fe_name, ForcesAndSourcesCore side_fe, const size_t dim, const EntityHandle ent_for_side=0, const int verb=QUIET, const LogManager::SeverityLevel sev=Sev::noisy, AdjCache adj_cache=nullptr)
	User calls this function to loop over elements on the side of face. This function calls finite element with its operator to do calculations. More...

MoFEMErrorCode	loopThis (const string &fe_name, ForcesAndSourcesCore *this_fe, const int verb=QUIET, const LogManager::SeverityLevel sev=Sev::noisy)
	User calls this function to loop over the same element using a different set of integration points. This function calls finite element with its operator to do calculations. More...

MoFEMErrorCode	loopParent (const string &fe_name, ForcesAndSourcesCore *parent_fe, const int verb=QUIET, const LogManager::SeverityLevel sev=Sev::noisy)
	User calls this function to loop over parent elements. This function calls finite element with its operator to do calculations. More...

MoFEMErrorCode	loopChildren (const string &fe_name, ForcesAndSourcesCore *child_fe, const int verb=QUIET, const LogManager::SeverityLevel sev=Sev::noisy)
	User calls this function to loop over parent elements. This function calls finite element with its operator to do calculations. More...

Public Member Functions inherited from MoFEM::DataOperator
	DataOperator (const bool symm=true)

virtual	~DataOperator ()=default

virtual MoFEMErrorCode	doWork (int row_side, int col_side, EntityType row_type, EntityType col_type, EntitiesFieldData::EntData &row_data, EntitiesFieldData::EntData &col_data)
	Operator for bi-linear form, usually to calculate values on left hand side. More...

virtual MoFEMErrorCode	opLhs (EntitiesFieldData &row_data, EntitiesFieldData &col_data)

virtual MoFEMErrorCode	doWork (int side, EntityType type, EntitiesFieldData::EntData &data)
	Operator for linear form, usually to calculate values on right hand side. More...

virtual MoFEMErrorCode	opRhs (EntitiesFieldData &data, const bool error_if_no_base=false)

bool	getSymm () const
	Get if operator uses symmetry of DOFs or not. More...

void	setSymm ()
	set if operator is executed taking in account symmetry More...

void	unSetSymm ()
	unset if operator is executed for non symmetric problem More...

Private Attributes
boost::shared_ptr< FaceSideEle >	sideFEPtr
	pointer to element to get data on edge/face sides More...

MatrixDouble	locMat
	local operator matrix More...

Additional Inherited Members
Public Types inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
enum	OpType { OPROW = 1 << 0, OPCOL = 1 << 1, OPROWCOL = 1 << 2, OPSPACE = 1 << 3, OPLAST = 1 << 3 }
	Controls loop over entities on element. More...

using	AdjCache = std::map< EntityHandle, std::vector< boost::weak_ptr< NumeredEntFiniteElement > >>

Public Types inherited from MoFEM::DataOperator
using	DoWorkLhsHookFunType = boost::function< MoFEMErrorCode(DataOperator *op_ptr, int row_side, int col_side, EntityType row_type, EntityType col_type, EntitiesFieldData::EntData &row_data, EntitiesFieldData::EntData &col_data)>

using	DoWorkRhsHookFunType = boost::function< MoFEMErrorCode(DataOperator *op_ptr, int side, EntityType type, EntitiesFieldData::EntData &data)>

Public Attributes inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
char	opType

std::string	rowFieldName

std::string	colFieldName

FieldSpace	sPace

Public Attributes inherited from MoFEM::DataOperator
DoWorkLhsHookFunType	doWorkLhsHook

DoWorkRhsHookFunType	doWorkRhsHook

bool	sYmm
	If true assume that matrix is symmetric structure. More...

std::array< bool, MBMAXTYPE >	doEntities
	If true operator is executed for entity. More...

bool &	doVertices
	\deprectaed If false skip vertices More...

bool &	doEdges
	\deprectaed If false skip edges More...

bool &	doQuads
	\deprectaed More...

bool &	doTris
	\deprectaed More...

bool &	doTets
	\deprectaed More...

bool &	doPrisms
	\deprectaed More...

Static Public Attributes inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
static const char *const	OpTypeNames []

Protected Attributes inherited from MoFEM::ForcesAndSourcesCore::UserDataOperator
ForcesAndSourcesCore *	ptrFE

Detailed Description

Operator the left hand side matrix.

Examples: poisson_2d_dis_galerkin.cpp.

Definition at line 115 of file PoissonDiscontinousGalerkin.hpp.

Constructor & Destructor Documentation

◆ OpL2LhsPenalty()

Poisson2DiscontGalerkinOperators::OpL2LhsPenalty::OpL2LhsPenalty ( boost::shared_ptr< FaceSideEle > side_fe_ptr )

inline

Construct a new OpL2LhsPenalty.

Parameters

side_fe_ptr pointer to FE to evaluate side elements

Examples: PoissonDiscontinousGalerkin.hpp.

Definition at line 123 of file PoissonDiscontinousGalerkin.hpp.

124 : BoundaryEleOp(NOSPACE, BoundaryEleOp::OPSPACE), sideFEPtr(side_fe_ptr) {}

Member Function Documentation

◆ doWork()

MoFEMErrorCode Poisson2DiscontGalerkinOperators::OpL2LhsPenalty::doWork	(	int	side,
		EntityType	type,
		EntitiesFieldData::EntData &	data
	)

inline

Examples: PoissonDiscontinousGalerkin.hpp.

Definition at line 126 of file PoissonDiscontinousGalerkin.hpp.

                                                         {
     MoFEMFunctionBegin;
  
     // Collect data from side domian elements
     CHKERR loopSideFaces("dFE", *sideFEPtr);
     const auto in_the_loop =
         sideFEPtr->nInTheLoop; // return number of elements on the side
  
 #ifndef NDEBUG
     const std::array<std::string, 2> ele_type_name = {"BOUNDARY", "SKELETON"};
     MOFEM_LOG("SELF", Sev::noisy)
         << "OpL2LhsPenalty inTheLoop " << ele_type_name[in_the_loop];
     MOFEM_LOG("SELF", Sev::noisy)
         << "OpL2LhsPenalty sense " << senseMap[0] << " " << senseMap[1];
 #endif
  
     // calculate  penalty
     const double s = getMeasure() / (areaMap[0] + areaMap[1]);
     const double p = penalty * s;
  
     // get normal of the face or edge
     auto t_normal = getFTensor1Normal();
     t_normal.normalize();
  
     // get number of integration points on face
     const size_t nb_integration_pts = getGaussPts().size2();
  
     // beta paramter is zero, when penalty method is used, also, takes value 1,
     // when boundary edge/face is evaluated, and 2 when is skeleton edge/face.
     const double beta = static_cast<double>(nitsche) / (in_the_loop + 1);
  
     // iterate the sides rows
     for (auto s0 : {LEFT_SIDE, RIGHT_SIDE}) {
  
       // gent number of DOFs on the right side. 
       const auto nb_rows = indicesRowSideMap[s0].size();
  
       if (nb_rows) {
  
         // get orientation of the local element edge
         const auto sense_row = senseMap[s0];
  
         // iterate the side cols
         const auto nb_row_base_functions = rowBaseSideMap[s0].size2();
         for (auto s1 : {LEFT_SIDE, RIGHT_SIDE}) {
  
           // get orientation of the edge
           const auto sense_col = senseMap[s1];
  
           // number of dofs, for homogenous approximation this value is
           // constant.
           const auto nb_cols = indicesColSideMap[s1].size();
  
           // resize local element matrix
           locMat.resize(nb_rows, nb_cols, false);
           locMat.clear();
  
           // get base functions, and integration weights
           auto t_row_base = get_ntensor(rowBaseSideMap[s0]);
           auto t_diff_row_base = get_diff_ntensor(rowDiffBaseSideMap[s0]);
           auto t_w = getFTensor0IntegrationWeight();
  
           // iterate integration points on face/edge
           for (size_t gg = 0; gg != nb_integration_pts; ++gg) {
  
             // t_w is integration weight, and measure is element area, or
             // volume, depending if problem is in 2d/3d.
             const double alpha = getMeasure() * t_w;
             auto t_mat = locMat.data().begin();
             
             // iterate rows
             size_t rr = 0;
             for (; rr != nb_rows; ++rr) {
  
               // calculate tetting function 
               FTensor::Tensor1<double, SPACE_DIM> t_vn_plus;
               t_vn_plus(i) = beta * (phi * t_diff_row_base(i) / p);
               FTensor::Tensor1<double, SPACE_DIM> t_vn;
               t_vn(i) = t_row_base * t_normal(i) * sense_row - t_vn_plus(i);
  
               // get base functions on columns
               auto t_col_base = get_ntensor(colBaseSideMap[s1], gg, 0);
               auto t_diff_col_base =
                   get_diff_ntensor(colDiffBaseSideMap[s1], gg, 0);
  
               // iterate columns
               for (size_t cc = 0; cc != nb_cols; ++cc) {
  
                 // calculate variance of tested function 
                 FTensor::Tensor1<double, SPACE_DIM> t_un;
                 t_un(i) = -p * (t_col_base * t_normal(i) * sense_col -
                                 beta * t_diff_col_base(i) / p);
  
                 // assemble matrix
                 *t_mat -= alpha * (t_vn(i) * t_un(i));
                 *t_mat -= alpha * (t_vn_plus(i) * (beta * t_diff_col_base(i)));
  
                 // move to next column base and element of matrix
                 ++t_col_base;
                 ++t_diff_col_base;
                 ++t_mat;
               }
  
               // move to next row base
               ++t_row_base;
               ++t_diff_row_base;
             }
  
             // this is obsolete for this particular example, we keep it for
             // generality. in case of multi-physics problems different fields can
             // chare hierarchical base but use different approx. order, so is
             // possible to have more base functions than DOFs on element.
             for (; rr < nb_row_base_functions; ++rr) {
               ++t_row_base;
               ++t_diff_row_base;
             }
  
             ++t_w;
           }
  
           // assemble system
           CHKERR ::MatSetValues(getKSPB(), indicesRowSideMap[s0].size(),
                                 &*indicesRowSideMap[s0].begin(),
                                 indicesColSideMap[s1].size(),
                                 &*indicesColSideMap[s1].begin(),
                                 &*locMat.data().begin(), ADD_VALUES);
  
           // stop of boundary element
           if (!in_the_loop)
             MoFEMFunctionReturnHot(0);
         }
       }
     }
  
     MoFEMFunctionReturn(0);
   }