PETScBaseMatrix.h¶
Note
The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.
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class
PETScBaseMatrix¶ Parent class(es)
This class is a base class for matrices that can be used in PETScKrylovSolver.
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PETScBaseMatrix()¶ Constructor
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explicit
PETScBaseMatrix(Mat A)¶ Constructor
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PETScBaseMatrix(const PETScBaseMatrix &A)¶ Copy constructor
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std::size_t
size(std::size_t dim) const¶ Return number of rows (dim = 0) or columns (dim = 1)
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std::pair<std::int64_t, std::int64_t>
size() const¶ Return number of rows and columns (num_rows, num_cols). PETSc returns -1 if size has not been set.
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std::pair<std::int64_t, std::int64_t>
local_range(std::size_t dim) const¶ Return local range along dimension dim
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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
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Mat
mat() const¶ Return PETSc Mat pointer
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MPI_Comm
mpi_comm() const¶ Return the MPI communicator
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std::string
str(bool verbose) const = 0¶ Return informal string representation (pretty-print)
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