Xref: utzoo comp.sources.wanted:6457 comp.lang.fortran:1766
Path: utzoo!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!cmcl2!phri!marob!nytim!tim
From: tim@nytim.UUCP (Tim's Personal Id.)
Newsgroups: comp.sources.wanted,comp.lang.fortran
Subject: Linear Programming Routine
Keywords: LP, Revised Simplex
Message-ID: <106@nytim.UUCP>
Date: 21 Feb 89 15:08:28 GMT
Reply-To: tim@nytim.masa.com (Tim's Personal Id.)
Organization: Chase Manhattan Leasing Company
Lines: 20

We are looking for a callable Linear Programming solver for
incorporation in a modelling program.  We have an old revised simplex
code which uses the product form of the inverse but it is not very
fast and is unreliable with larger (2000 x 800) problems.

If anyone knows of a reliable routine which is available in either
Fortran or C I'd be very grateful for the info.  The problems we have
typically have a few thousand variables + slacks and several hundred
equations. The matrix entries vary between 1.0 and 1.0e-4 and the
right hand sides between 1.0 and 1.0e6.

Many thanks in advance.

+---------------------------+ At work:
| Tim Stone		    | UUCP: ...!rutgers!hombre!marob!nytim!tim   
| Chase Leasing Services Co,| Tel : (212) 552-7132
| 1 Chase Plaza,	    | Fax : (212) 269-9690
| New York, NY 10081,	    | 
| U.S.A.		    | "God is a comedian playing to an audience too
+---------------------------+  afraid to laugh" - Voltaire.