PETScBaseMatrix.h

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class PETScBaseMatrix

Parent class(es)

• PETScObject
• Variable

This class is a base class for matrices that can be used in PETScKrylovSolver.

PETScBaseMatrix()

Constructor

explicit PETScBaseMatrix(Mat A)

Constructor

PETScBaseMatrix(const PETScBaseMatrix& A)

Copy constructor

std::size_t size(std::size_t dim) const

Return number of rows (dim = 0) or columns (dim = 1)

std::pair<std::size_t, std::size_t> local_range(std::size_t dim) const

Return local range along dimension dim

void init_vector(GenericVector& z, std::size_t dim) const

Initialize vector to be compatible with the matrix-vector product y = Ax. In the parallel case, both size and layout are important.

Arguments

dim (std::size_t)

The dimension (axis): dim = 0 –> z = y, dim = 1 –> z = x

Mat mat() const

Return PETSc Mat pointer

std::string str(bool verbose) const = 0

Return informal string representation (pretty-print)