densematrixmodule Module Reference

This module allows one to convert a sparse matrix to a dense matrix. It also supports dense the dense versions of core matrix routines. This module is used in situations where matrices become too dense for good sparse matrix performance. More...

Functions/Subroutines
pure subroutine, public	constructdensefromsparse (sparse_matrix, dense_matrix)
	A function that converts a sparse matrix to a dense matrix. More...
pure subroutine, public	constructsparsefromdense (dense_matrix, sparse_matrix, threshold)
	A function that converts a dense matrix to a sparse matrix. More...
pure subroutine, public	multiplydense (MatA, MatB, MatC)
	A wrapper for multiplying two dense matrices. More...

Detailed Description

This module allows one to convert a sparse matrix to a dense matrix. It also supports dense the dense versions of core matrix routines. This module is used in situations where matrices become too dense for good sparse matrix performance.

Function/Subroutine Documentation

constructdensefromsparse()

pure subroutine, public densematrixmodule::constructdensefromsparse	(	type(sparsematrix_t), intent(in)	sparse_matrix,
		real(ntreal), dimension(:,:), intent(inout)	dense_matrix
	)

A function that converts a sparse matrix to a dense matrix.

Parameters

[in]	sparse_matrix	a sparse matrix to convert.
[in,out]	dense_matrix	output. Must be preallocated.

constructsparsefromdense()

pure subroutine, public densematrixmodule::constructsparsefromdense	(	real(ntreal), dimension(:,:), intent(in)	dense_matrix,
		type(sparsematrix_t), intent(inout)	sparse_matrix,
		real(ntreal), intent(in)	threshold
	)

A function that converts a dense matrix to a sparse matrix.

Parameters

[in]	dense_matrix	to convert.
[out]	sparse_matrix	output matrix.
[in]	threshold	value for pruning values to zero.

multiplydense()

pure subroutine, public densematrixmodule::multiplydense	(	real(ntreal), dimension(:,:), intent(in)	MatA,
		real(ntreal), dimension(:,:), intent(in)	MatB,
		real(ntreal), dimension(:,:), intent(inout)	MatC
	)

A wrapper for multiplying two dense matrices.

Parameters

[in]	MatA	the first matrix.
[in]	MatB	the second matrix.
[in,out]	MatC	= MatA*MatB. MatC must be preallocated.