Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!wuarchive!udel!nigel.ee.udel.edu!mccalpin From: mccalpin@perelandra.cms.udel.edu (John D. McCalpin) Newsgroups: comp.unix.aix Subject: Re: Best banded matrix solver for the RS-6000? Message-ID: Date: 15 Jan 91 17:37:35 GMT References: <105939@cc.utah.edu> <4788@awdprime.UUCP> <1991Jan15.144122.3598@ux1.cso.uiuc.edu> <1991Jan15.155618.11497@turnkey.tcc.com> Sender: usenet@ee.udel.edu Organization: College of Marine Studies, U. Del. Lines: 26 Nntp-Posting-Host: perelandra.cms.udel.edu In-reply-to: jackv@turnkey.tcc.com's message of 15 Jan 91 15:56:18 GMT >>>>> On 15 Jan 91 15:56:18 GMT, jackv@turnkey.tcc.com (Jack F. Vogel) said: >What is ESSL/6000? Jack> [it stands for] "Engineering/Scientific Subroutine Library". Jack> But, in any case, it is a Fortran library. It is also available Jack> for AIX/370 along with vsfortran which generates vectorized code Jack> for the 3090 vector facility. I know there are other actual Jack> users of this package out there on the net, perhaps one of them Jack> could enlighten us? I have a copy for testing purposes on my machine. It has an outrageous number of routines for doing math/statistics/etc. I will post more info when I see the documentation later this week. The only routine that I have used out of it is DGEMM, which looks to be the same as the version in /lib/libblas.a, and which runs 64-bit matrix multiplies at a sustained rate of 32 MFLOPS on the Model 320. If the other routines are optimized as well as DGEMM, then the package will certainly be worth paying for --- though I don't recall the exact cost right now.... -- John D. McCalpin mccalpin@perelandra.cms.udel.edu Assistant Professor mccalpin@brahms.udel.edu College of Marine Studies, U. Del. J.MCCALPIN/OMNET