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PDGBSV(l) ) PDGBSV(l)

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

SUBROUTINE PDGBSV(
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( * ) DOUBLE PRECISION A( * ), B( * ), WORK( * )

PDGBSV 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
 
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 PDGBTRF and PDGBTRS for details.
 
13 August 2001 ScaLAPACK version 1.7

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