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

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.