DragonFly On-Line Manual Pages

PZGBSV(l)                              )                             PZGBSV(l)

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

SYNOPSIS
       SUBROUTINE PZGBSV( N, BWL, BWU, NRHS, A, JA, DESCA, IPIV, B, IB, DESCB,
                          WORK, LWORK, INFO )
           INTEGER BWL, BWU, IB, INFO, JA, LWORK, N, NRHS
           INTEGER DESCA( * ), DESCB( * ), IPIV( * )
           COMPLEX*16 A( * ), B( * ), WORK( * )

PURPOSE
       PZGBSV 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 complex
       banded distributed
       matrix with bandwidth BWL, BWU.

       Gaussian elimination with pivoting
       is used to factor a reordering
       of the matrix into P L U.

       See PZGBTRF and PZGBTRS for details.

ScaLAPACK version 1.7           13 August 2001                       PZGBSV(l)