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Man Pages


Manual Reference Pages  -  PCGBSV (l)

NAME

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

CONTENTS

Synopsis
Purpose

SYNOPSIS

SUBROUTINE PCGBSV( 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 A( * ), B( * ), WORK( * )

PURPOSE

PCGBSV 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 PCGBTRF and PCGBTRS for details.

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ScaLAPACK version 1.7 PCGBSV (l) 13 August 2001

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