Provided by: scalapack-doc_1.5-10_all
PZPTSV - solve a system of linear equations A(1:N, JA:JA+N-1) * X = B(IB:IB+N-1, 1:NRHS)
SUBROUTINE PZPTSV( UPLO, N, NRHS, D, E, JA, DESCA, B, IB, DESCB, WORK, LWORK, INFO ) CHARACTER UPLO INTEGER IB, INFO, JA, LWORK, N, NRHS INTEGER DESCA( * ), DESCB( * ) COMPLEX*16 B( * ), E( * ), WORK( * ) DOUBLE PRECISION D( * )
PZPTSV solves a system of linear equations where A(1:N, JA:JA+N-1) is an N-by-N complex tridiagonal symmetric positive definite distributed matrix. Cholesky factorization is used to factor a reordering of the matrix into L L'. See PZPTTRF and PZPTTRS for details.