Error of approximation

Routines to measure error of approximation. More...

Collaboration diagram for Error of approximation:

Functions
double	starsh_blrm__dfe (STARSH_blrm *matrix)
	Approximation error in Frobenius norm of double precision matrix. More...
double	starsh_blrm__dfe_omp (STARSH_blrm *matrix)
	Approximation error in Frobenius norm of double precision matrix. More...
int	starsh_blrm__dca (STARSH_blrm *matrix, Array *A)
	Convert double precision block low-rank matrix to dense Array. More...
double	starsh_blrm__dfe_mpi (STARSH_blrm *matrix)
	Approximation error in Frobenius norm of double precision matrix. More...

Detailed Description

Routines to measure error of approximation.

Function Documentation

starsh_blrm__dca()

int starsh_blrm__dca	(	STARSH_blrm *	matrix,
		Array *	A
	)

Convert double precision block low-rank matrix to dense Array.

Memory for output array must be allocated prior calling this function.

Parameters

[in]	matrix	Block-wise low-rank matrix.
[out]	A	Output Array object.

Returns

Error code STARSH_ERRNO.

starsh_blrm__dfe()

double starsh_blrm__dfe

(

STARSH_blrm *

matrix

)

Approximation error in Frobenius norm of double precision matrix.

Measure error of approximation of a dense matrix by block-wise low-rank matrix.

Parameters

[in]

matrix

Block-wise low-rank matrix.

Returns

Error of approximation.

starsh_blrm__dfe_mpi()

double starsh_blrm__dfe_mpi

(

STARSH_blrm *

matrix

)

Approximation error in Frobenius norm of double precision matrix.

Measure error of approximation of a dense matrix by block-wise low-rank matrix.

Parameters

[in]

matrix

Block-wise low-rank matrix.

Returns

Error of approximation.

starsh_blrm__dfe_omp()

double starsh_blrm__dfe_omp

(

STARSH_blrm *

matrix

)

Approximation error in Frobenius norm of double precision matrix.

Measure error of approximation of a dense matrix by block-wise low-rank matrix.

Parameters

[in]

matrix

Block-wise low-rank matrix.

Returns

Error of approximation.