Symbolic factorization

Data Structures
struct	symbol_faxtlok_s
	The chained column block structure. More...

Macros
#define	SYMBOL_FAX_HASHPRIME   17
	Prime number for hashing vertex numbers.

Typedefs
typedef struct symbol_faxtlok_s	SymbolFaxTlok
	The chained column block structure. More...

Functions
int	pastixSymbolFaxILUk (symbol_matrix_t *symbptr, pastix_int_t levelk, const pastix_graph_t *graphA, const pastix_order_t *ordeptr)
	Create the symbol matrix from the graph of the non zero pattern of the factorized matrix and the supernode partition. More...
void	faxCSRPatchSymbol (symbol_matrix_t *symbmtx)
	Patch the symbol matrix to add blocks in order to get a real elimination tree. More...

Detailed Description

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Data Type Documentation

symbol_faxtlok_s

struct symbol_faxtlok_s

The chained column block structure.

These blocks are chained in a single linked list for block merge with blocks of left columns.

Definition at line 34 of file symbol_fax.h.

Data Fields
pastix_int_t	frownum	First row index
pastix_int_t	lrownum	Last row index (inclusive)
pastix_int_t	fcblknm	Facing column block
pastix_int_t	nextnum	Index of next block

Typedef Documentation

SymbolFaxTlok

typedef struct symbol_faxtlok_s SymbolFaxTlok

The chained column block structure.

These blocks are chained in a single linked list for block merge with blocks of left columns.

Function Documentation

pastixSymbolFaxILUk()

int pastixSymbolFaxILUk	(	symbol_matrix_t *	symbptr,
		pastix_int_t	levelk,
		const pastix_graph_t *	graphA,
		const pastix_order_t *	ordeptr
	)

Create the symbol matrix from the graph of the non zero pattern of the factorized matrix and the supernode partition.

Parameters

[in]	symbptr	TODO
[in]	levelk	TODO
[in]	graphA	TODO
[out]	ordeptr	TODO

Return values

0	on success.
!0	on failure.

Definition at line 51 of file symbol_fax_iluk.c.

References symbol_matrix_s::baseval, symbol_matrix_s::bloknbr, symbol_cblk_s::bloknum, symbol_matrix_s::bloktab, symbol_cblk_s::brownum, symbol_matrix_s::browtab, symbol_matrix_s::cblknbr, symbol_matrix_s::cblktab, faxCSRClean(), faxCSRFactILUk(), faxCSRGenPA(), faxCSRGetNNZ(), symbol_blok_s::fcblknm, symbol_cblk_s::fcolnum, symbol_blok_s::frownum, symbol_blok_s::lcblknm, symbol_cblk_s::lcolnum, symbol_blok_s::lrownum, and symbol_matrix_s::nodenbr.

Referenced by pastix_subtask_symbfact().

faxCSRPatchSymbol()

void faxCSRPatchSymbol

(

symbol_matrix_t *

symbmtx

)

Patch the symbol matrix to add blocks in order to get a real elimination tree.

This function is called when ILU(k) factorization is performed and the faxCSRBuildSymbol() function might have returned a symbol matrix that doesn't provide a real elimination tree.

Parameters

[in,out]

symbmtx

On entry, a generated symbol matrix with faxCSRBuildSymbol() for example. On exit, the patched symbol matrix with extra blocks to have a real elimination tree.

For the cblk of the symbol matrix

Add a blok toward the father

OIMBE try lcolnum

Copy the last one

Virtual cblk

Definition at line 223 of file symbol_fax_iluk.c.

References symbol_matrix_s::bloknbr, symbol_cblk_s::bloknum, symbol_matrix_s::bloktab, symbol_matrix_s::cblknbr, symbol_matrix_s::cblktab, faxCSRClean(), faxCSRInit(), symbol_blok_s::fcblknm, symbol_cblk_s::fcolnum, symbol_blok_s::frownum, symbol_blok_s::lcblknm, and symbol_blok_s::lrownum.