PaStiX Handbook: kernels/pastix_lowrank.h File Reference

Data Structures
struct	pastix_lrblock_s
	The block low-rank structure to hold a matrix in low-rank form. More...

struct	pastix_lr_s
	Structure to define the type of function to use for the low-rank kernels and their parameters. More...

Macros
#define	PASTIX_LRM3_ORTHOU (1 << 0)
	Macro to specify if the U part of a low-rank matrix is orthogonal or not (Used in LRMM functions).

#define	PASTIX_LRM3_ALLOCU (1 << 1)
	Macro to specify if the U part of a low-rank matrix has been allocated and need to be freed or not (Used in LRMM functions).

#define	PASTIX_LRM3_ALLOCV (1 << 2)
	Macro to specify if the V part of a low-rank matrix has been allocated and need to be freed or not (Used in LRMM functions).

#define	PASTIX_LRM3_TRANSB (1 << 3)
	Macro to specify if the the operator on B, still needs to be applied to the V part of the low-rank matrix or not (Used in LRMM functions).

Typedefs
typedef struct pastix_lr_s	pastix_lr_t
	Structure to define the type of function to use for the low-rank kernels and their parameters.

typedef struct pastix_lrblock_s	pastix_lrblock_t
	The block low-rank structure to hold a matrix in low-rank form.

typedef pastix_fixdbl_t(*	fct_ge2lr_t) (int, pastix_fixdbl_t, pastix_int_t, pastix_int_t, pastix_int_t, const void , pastix_int_t, pastix_lrblock_t )
	Type of the functions to compress a dense block into a low-rank form.

typedef pastix_fixdbl_t(*	fct_rradd_t) (const pastix_lr_t , pastix_trans_t, const void , pastix_int_t, pastix_int_t, const pastix_lrblock_t , pastix_int_t, pastix_int_t, pastix_lrblock_t , pastix_int_t, pastix_int_t)
	Type of the functions to add two low-rank blocks together.

typedef enum memory_stats_e	memory_stats_t
	Enum to define the type of block.

Enumerations
enum	memory_stats_e { FR_InDiag = 0 , FR_OffDiag = 1 , LR_InDiag = 2 , LR_InSele = 3 , LR_OffDiag = 4 , LR_DInD = 5 , MEMORY_STATS_SIZE }
	Enum to define the type of block. More...

Functions
static pastix_int_t	core_get_rklimit_max (pastix_int_t M, pastix_int_t N)
	Compute the maximal rank accepted for a given matrix size for testings. More...

static pastix_int_t	core_get_rklimit_end (pastix_int_t M, pastix_int_t N)
	Compute the maximal rank accepted for a given matrix size for Just-In-Time strategy. More...

static pastix_int_t	core_get_rklimit_begin (pastix_int_t M, pastix_int_t N)
	Compute the maximal rank accepted for a given matrix size for Minimal-Memory strategy. More...

static pastix_int_t	core_get_rklimit_test (pastix_int_t M, pastix_int_t N)
	TODO. More...

Variables
const char *	compmeth_shnames [PastixCompressMethodNbr]
	List of short names for the compression kernels.

const char *	compmeth_lgnames [PastixCompressMethodNbr]
	List of long names for the compression kernels.

double	pastix_lr_minratio
	Define the minimal ratio for which we accept to compress a matrix into a low-rank form or not. More...

pastix_int_t	pastix_lr_ortho
	Define the orthogonalization method.

pastix_int_t(*	core_get_rklimit )(pastix_int_t, pastix_int_t)
	Compute the maximal rank accepted for a given matrix size. The pointer is set according to the low-rank strategy used. More...

const fct_ge2lr_t	ge2lrMethods [PastixCompressMethodNbr][4]
	Array of pointers to the multiple arithmetic and algorithmic variants of ge2lr.

const fct_rradd_t	rraddMethods [PastixCompressMethodNbr][4]
	Array of pointers to the multiple arithmetic and algorithmic variants of rradd.

Detailed Description

PaStiX kernel header.

Author: Mathieu Faverge; Pierre Ramet; Xavier Lacoste; Esragul Korkmaz; Gregoire Pichon

Definition in file pastix_lowrank.h.