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HPL_pdgesv0(3) HPL Library Functions HPL_pdgesv0(3)

HPL_pdgesv0 - Factor an N x N+1 matrix.

#include "hpl.h"

void HPL_pdgesv0( HPL_T_grid * GRID, HPL_T_palg * ALGO, HPL_T_pmat * A );

HPL_pdgesv0 factors a N+1-by-N matrix using LU factorization with row partial pivoting. The main algorithm is the "right looking" variant 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.

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.

HPL_pdgesv (3), HPL_pdgesvK1 (3), HPL_pdgesvK2 (3), HPL_pdfact (3), HPL_binit (3), HPL_bcast (3), HPL_bwait (3), HPL_pdupdateNN (3), HPL_pdupdateNT (3), HPL_pdupdateTN (3), HPL_pdupdateTT (3).
December 2, 2018 HPL 2.3

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