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PDPTTRS(l) ) PDPTTRS(l)

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

SUBROUTINE PDPTTRS(
N, NRHS, D, E, JA, DESCA, B, IB, DESCB, AF, LAF, WORK, LWORK, INFO )
INTEGER IB, INFO, JA, LAF, LWORK, N, NRHS INTEGER DESCA( * ), DESCB( * ) DOUBLE PRECISION AF( * ), B( * ), D( * ), E( * ), WORK( * )

PDPTTRS 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 the matrix used to produce the factors stored in A(1:N,JA:JA+N-1) and AF by PDPTTRF.
 
A(1:N, JA:JA+N-1) is an N-by-N real
 
tridiagonal symmetric positive definite distributed
 
matrix.
 
Routine PDPTTRF MUST be called first.
 
13 August 2001 ScaLAPACK version 1.7

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