PDDBTRS(3)    ScaLAPACK routine of NEC Numeric Library Collection   PDDBTRS(3)



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

SYNOPSIS
       SUBROUTINE PDDBTRS( TRANS, N, BWL, BWU, NRHS,  A,  JA,  DESCA,  B,  IB,
                           DESCB, AF, LAF, WORK, LWORK, INFO )

           CHARACTER       TRANS

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

           INTEGER         DESCA( * ), DESCB( * )

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

PURPOSE
       PDDBTRS  solves  a  system  of linear equations A(1:N, JA:JA+N-1) * X =
       B(IB:IB+N-1, 1:NRHS)                                   or
                 A(1:N, JA:JA+N-1)' * X = B(IB:IB+N-1, 1:NRHS)

       where A(1:N, JA:JA+N-1) is the  matrix  used  to  produce  the  factors
       stored in A(1:N,JA:JA+N-1) and AF by PDDBTRF.
       A(1:N, JA:JA+N-1) is an N-by-N real
       banded diagonally dominant-like distributed
       matrix with bandwidth BWL, BWU.

       Routine PDDBTRF MUST be called first.




ScaLAPACK routine               31 October 2017                     PDDBTRS(3)