GenericTensor.h

Note

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

class GenericTensor

Parent class(es)

• LinearAlgebraObject

This class defines a common interface for arbitrary rank tensors.

void init(const TensorLayout& tensor_layout) = 0

Initialize zero tensor using tensor layout

bool empty() const = 0

Return true if empty

std::size_t rank() const = 0

Return tensor rank (number of dimensions)

std::size_t size(std::size_t dim) const = 0

Return size of given dimension

std::pair<std::size_t, std::size_t> local_range(std::size_t dim) const = 0

Return local ownership range

void get(double* block, const dolfin::la_index* num_rows, const dolfin::la_index* const* rows) const = 0

Get block of values

void set(const double* block, const dolfin::la_index* num_rows, const dolfin::la_index* const* rows) = 0

Set block of values using global indices

void set_local(const double* block, const dolfin::la_index* num_rows, const dolfin::la_index* const* rows) = 0

Set block of values using local indices

void add(const double* block, const std::vector<ArrayView<const dolfin::la_index>>& rows) = 0

Add block of values using global indices

void add_local(const double* block, const std::vector<ArrayView<const dolfin::la_index>>& rows) = 0

Add block of values using local indices

void add(const double* block, const dolfin::la_index* num_rows, const dolfin::la_index* const* rows) = 0

Add block of values using global indices

void add_local(const double* block, const dolfin::la_index* num_rows, const dolfin::la_index* const* rows) = 0

Add block of values using local indices

void zero() = 0

Set all entries to zero and keep any sparse structure

void apply(std::string mode) = 0

Finalize assembly of tensor

MPI_Comm mpi_comm() const = 0

Return MPI communicator

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

Return informal string representation (pretty-print)

GenericLinearAlgebraFactory& factory() const = 0

Return linear algebra backend factory