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



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

SYNOPSIS
       SUBROUTINE PSPTSV( N, NRHS, D, E, JA, DESCA, B, IB, DESCB, WORK, LWORK,
                          INFO )

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

           INTEGER        DESCA( * ), DESCB( * )

           REAL           B( * ), D( * ), E( * ), WORK( * )

PURPOSE
       PSPTSV  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
       tridiagonal symmetric positive definite distributed
       matrix.

       Cholesky factorization is used to factor a reordering of
       the matrix into L L'.

       See PSPTTRF and PSPTTRS for details.




ScaLAPACK routine               31 October 2017                      PSPTSV(3)