EpetraMatrix

class dolfin.cpp.la.EpetraMatrix(*args)

Bases: dolfin.cpp.la.GenericMatrix

This class provides a simple matrix class based on Epetra. It is a simple wrapper for an Epetra matrix object (Epetra_FECrsMatrix) implementing the GenericMatrix interface.

The interface is intentionally simple. For advanced usage, access the Epetra_FECrsMatrix object using the function mat() and use the standard Epetra interface.

Overloaded versions

• EpetraMatrix()

  Create empty matrix

• EpetraMatrix(A)

  Copy constuctor

• EpetraMatrix(A)

  Create matrix from given Epetra_FECrsMatrix pointer

• EpetraMatrix(A)

  Create matrix from given Epetra_FECrsMatrix pointer

• EpetraMatrix(graph)

  Create matrix from given Epetra_CrsGraph

assign()

Overloaded versions

• operator=(x)

  Assignment operator

• operator=(x)

  Assignment operator

mat()

Return the Epetra_FECrsMatrix

thisown

The membership flag

zero()

Overloaded versions

• zero()

  Set all entries to zero and keep any sparse structure

• zero(m, rows)

  Set given rows to zero