DragonFly On-Line Manual Pages

PDDTSV(l)                              )                             PDDTSV(l)

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

SYNOPSIS
       SUBROUTINE PDDTSV( N, NRHS, DL, D, DU, JA, DESCA, B, IB, DESCB, WORK,
                          LWORK, INFO )
           INTEGER IB, INFO, JA, LWORK, N, NRHS
           INTEGER DESCA( * ), DESCB( * )
           DOUBLE PRECISION B( * ), D( * ), DL( * ), DU( * ), WORK( * )

PURPOSE
       PDDTSV solves a system of linear equations A(1:N, JA:JA+N-1) * X =
       B(IB:IB+N-1, 1:NRHS) where A(1:N, JA:JA+N-1) is an N-by-N real
       tridiagonal diagonally dominant-like distributed
       matrix.

       Gaussian elimination without pivoting
       is used to factor a reordering
       of the matrix into L U.

       See PDDTTRF and PDDTTRS for details.

ScaLAPACK version 1.7           13 August 2001                       PDDTSV(l)