SYNOPSIS

SUBROUTINE PDDBSV(

N, BWL, BWU, NRHS, A, JA, DESCA, B, IB, DESCB, WORK, LWORK, INFO )

    

INTEGER BWL, BWU, IB, INFO, JA, LWORK, N, NRHS

    

INTEGER DESCA( * ), DESCB( * )

    

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

PURPOSE

PDDBSV solves a system of linear equations

where A(1:N, JA:JA+N-1) is an N-by-N real
banded diagonally dominant-like distributed
matrix with bandwidth BWL, BWU.

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

See PDDBTRF and PDDBTRS for details.