HPL_pdgesv man page

HPL_pdgesv — Solve A x = b.

Synopsis

#include "hpl.h"
void HPL_pdgesv( HPL_T_grid * GRID, HPL_T_palg * ALGO, HPL_T_pmat * A );

Description

HPL_pdgesv factors a N+1-by-N matrix using LU factorization with row partial pivoting. The main algorithm is the "right looking" variant with or without look-ahead. The lower triangular factor is left unpivoted and the pivots are not returned. The right hand side is the N+1 column of the coefficient matrix.

Arguments

GRID (local input) HPL_T_grid *
On entry, GRID points to the data structure containing the process grid information.
ALGO (global input) HPL_T_palg *
On entry, ALGO points to the data structure containing the algorithmic parameters.
A (local input/output) HPL_T_pmat *
On entry, A points to the data structure containing the local array information.

See Also

HPL_pdgesv0 (3), HPL_pdgesvK1 (3), HPL_pdgesvK2 (3), HPL_pdtrsv (3).

Info

October 26, 2012 HPL 2.1 HPL Library Functions