BlockMatrixBase< MatrixType >::TemporaryData Struct Reference

Public Member Functions
TemporaryData &	operator= (const TemporaryData &)

Public Attributes
std::vector< size_type >	counter_within_block
std::vector< std::vector< size_type > >	column_indices
std::vector< std::vector< value_type > >	column_values
Threads::Mutex	mutex

Detailed Description

template<typename MatrixType>
struct BlockMatrixBase< MatrixType >::TemporaryData

A structure containing some fields used by the set() and add() functions that is used to pre-sort the input fields. Since one can reasonably expect to call set() and add() from multiple threads at once as long as the matrix indices that are touched are disjoint, these temporary data fields need to be guarded by a mutex; the structure therefore contains such a mutex as a member variable.

Definition at line 1013 of file block_matrix_base.h.

Member Function Documentation

template<typename MatrixType>

TemporaryData& BlockMatrixBase< MatrixType >::TemporaryData::operator= ( const TemporaryData &  )

inline

Copy operator. This is needed because the default copy operator of this class is deleted (since Threads::Mutex is not copyable) and hence the default copy operator of the enclosing class is also deleted.

The implementation here simply does nothing – TemporaryData objects are just scratch objects that are resized at the beginning of their use, so there is no point actually copying anything.

Definition at line 1049 of file block_matrix_base.h.

Member Data Documentation

template<typename MatrixType>

std::vector<size_type> BlockMatrixBase< MatrixType >::TemporaryData::counter_within_block

Temporary vector for counting the elements written into the individual blocks when doing a collective add or set.

Definition at line 1019 of file block_matrix_base.h.

template<typename MatrixType>

std::vector<std::vector<size_type> > BlockMatrixBase< MatrixType >::TemporaryData::column_indices

Temporary vector for column indices on each block when writing local to global data on each sparse matrix.

Definition at line 1025 of file block_matrix_base.h.

template<typename MatrixType>

std::vector<std::vector<value_type> > BlockMatrixBase< MatrixType >::TemporaryData::column_values

Temporary vector for storing the local values (they need to be reordered when writing local to global).

Definition at line 1031 of file block_matrix_base.h.

template<typename MatrixType>

Threads::Mutex BlockMatrixBase< MatrixType >::TemporaryData::mutex

A mutex variable used to guard access to the member variables of this structure;

Definition at line 1037 of file block_matrix_base.h.

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The documentation for this struct was generated from the following file:

• deal.II/lac/block_matrix_base.h