man pzdtsv (Fonctions bibliothèques) - solve a system of linear equations A(1:N, JA:JA+N-1) * X = B(IB:IB+N-1, 1:NRHS)

NAME

PZDTSV - solve a system of linear equations A(1:N, JA:JA+N-1) * X = B(IB:IB+N-1, 1:NRHS)

SYNOPSIS

SUBROUTINE PZDTSV(
N, NRHS, DL, D, DU, JA, DESCA, B, IB, DESCB, WORK, LWORK, INFO )
INTEGER IB, INFO, JA, LWORK, N, NRHS
INTEGER DESCA( * ), DESCB( * )
COMPLEX*16 B( * ), D( * ), DL( * ), DU( * ), WORK( * )

PURPOSE

PZDTSV solves a system of linear equations

where A(1:N, JA:JA+N-1) is an N-by-N complex

tridiagonal diagonally dominant-like distributed

matrix.

Gaussian elimination without pivoting

is used to factor a reordering

of the matrix into L U.

See PZDTTRF and PZDTTRS for details.