MFEM  v3.3.2
Finite element discretization library
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mfem::STRUMPACKRowLocMatrix Class Reference

#include <strumpack.hpp>

Inheritance diagram for mfem::STRUMPACKRowLocMatrix:
Collaboration diagram for mfem::STRUMPACKRowLocMatrix:

Public Member Functions

 STRUMPACKRowLocMatrix (MPI_Comm comm, int num_loc_rows, int first_loc_row, int glob_nrows, int glob_ncols, int *I, int *J, double *data)
 STRUMPACKRowLocMatrix (const HypreParMatrix &hypParMat)
 ~STRUMPACKRowLocMatrix ()
void Mult (const Vector &x, Vector &y) const
 Operator application: y=A(x). More...
MPI_Comm GetComm () const
< double, int > * 
getA () const
- Public Member Functions inherited from mfem::Operator
 Operator (int s=0)
 Construct a square Operator with given size s (default 0). More...
 Operator (int h, int w)
 Construct an Operator with the given height (output size) and width (input size). More...
int Height () const
 Get the height (size of output) of the Operator. Synonym with NumRows(). More...
int NumRows () const
 Get the number of rows (size of output) of the Operator. Synonym with Height(). More...
int Width () const
 Get the width (size of input) of the Operator. Synonym with NumCols(). More...
int NumCols () const
 Get the number of columns (size of input) of the Operator. Synonym with Width(). More...
virtual void MultTranspose (const Vector &x, Vector &y) const
 Action of the transpose operator: y=A^t(x). The default behavior in class Operator is to generate an error. More...
virtual OperatorGetGradient (const Vector &x) const
 Evaluate the gradient operator at the point x. The default behavior in class Operator is to generate an error. More...
virtual const OperatorGetProlongation () const
 Prolongation operator from linear algebra (linear system) vectors, to input vectors for the operator. NULL means identity. More...
virtual const OperatorGetRestriction () const
 Restriction operator from input vectors for the operator to linear algebra (linear system) vectors. NULL means identity. More...
void FormLinearSystem (const Array< int > &ess_tdof_list, Vector &x, Vector &b, Operator *&A, Vector &X, Vector &B, int copy_interior=0)
 Form a constrained linear system using a matrix-free approach. More...
virtual void RecoverFEMSolution (const Vector &X, const Vector &b, Vector &x)
 Reconstruct a solution vector x (e.g. a GridFunction) from the solution X of a constrained linear system obtained from Operator::FormLinearSystem(). More...
void PrintMatlab (std::ostream &out, int n=0, int m=0) const
 Prints operator with input size n and output size m in Matlab format. More...
virtual ~Operator ()
 Virtual destructor. More...

Additional Inherited Members

- Public Types inherited from mfem::Operator
enum  Type {
 Enumeration defining IDs for some classes derived from Operator. More...
- Protected Attributes inherited from mfem::Operator
int height
 Dimension of the output / number of rows in the matrix. More...
int width
 Dimension of the input / number of columns in the matrix. More...

Detailed Description

Definition at line 29 of file strumpack.hpp.

Constructor & Destructor Documentation

mfem::STRUMPACKRowLocMatrix::STRUMPACKRowLocMatrix ( MPI_Comm  comm,
int  num_loc_rows,
int  first_loc_row,
int  glob_nrows,
int  glob_ncols,
int *  I,
int *  J,
double *  data 

Creates a general parallel matrix from a local CSR matrix on each processor described by the I, J and data arrays. The local matrix should be of size (local) nrows by (global) glob_ncols. The new parallel matrix contains copies of all input arrays (so they can be deleted).

Definition at line 25 of file strumpack.cpp.

mfem::STRUMPACKRowLocMatrix::STRUMPACKRowLocMatrix ( const HypreParMatrix hypParMat)

Creates a copy of the parallel matrix hypParMat in STRUMPACK's RowLoc format. All data is copied so the original matrix may be deleted.

Definition at line 47 of file strumpack.cpp.

mfem::STRUMPACKRowLocMatrix::~STRUMPACKRowLocMatrix ( )

Definition at line 80 of file strumpack.cpp.

Member Function Documentation

strumpack::CSRMatrixMPI<double,int>* mfem::STRUMPACKRowLocMatrix::getA ( ) const

Definition at line 55 of file strumpack.hpp.

MPI_Comm mfem::STRUMPACKRowLocMatrix::GetComm ( ) const

Definition at line 53 of file strumpack.hpp.

void mfem::STRUMPACKRowLocMatrix::Mult ( const Vector x,
Vector y 
) const

Operator application: y=A(x).

Implements mfem::Operator.

Definition at line 47 of file strumpack.hpp.

The documentation for this class was generated from the following files: