Module SOMN in SLATEC

General Information

Preconditioned Orthomin Sparse Iterative Ax=b Solver. Routine to solve a general linear system Ax = b using the Preconditioned Orthomin method. (SLAP Package).

Usage

CALL SOMN (N, B, X, NELT, IA, JA, A, ISYM, MATVEC, MSOLVE, NSAVE, ITOL, TOL, ITMAX, ITER, ERR, IERR, IUNIT, R, Z, P, AP, EMAP, DZ, CSAV, RWORK, IWORK)

Classification

D2a4	Solution of systems of linear equations, including matrix inverses, and LU and related factorizations (real nonsymmetric sparse matrices)

Type

subroutine in SLATEC package

Language

Fortran

Availability

Public domain, Portable

Precision

Single Precision

Alternates

DOMN

Double Precision

See also

SSDOMN, SSLUOM, ISSOMN

Download from ARNO; Silicon Graphics Origin 2000

Location

National Institute of Standards and Technology (NIST), Gaithersburg, MD.

Contact

Gaithersburg Consulting Office: 301-975-2968, consult@nist.gov

Usage

Those logged in to arno.nist.gov or amur.nist.gov may access this module as follows.

To Link

f77 -o prog prog.f -lslatec

Installation on ITL; Unix Workstation Network

Location

National Institute of Standards and Technology (NIST), Gaithersburg, MD.

Contact

Gaithersburg Consulting Office: 301-975-2968 (FTS 879-2968)

Usage

Access available only to NIST staff on internal Unix systems. They may access this package provided the /itl tree is cross-mounted.

Documentation

slatecdoc somn

Fullsource

slatecsrcx somn

Source

slatecsrc SOMN

To Link

f77 -o example example.f -lslatec