From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,5c4627b775acf6be X-Google-Attributes: gid103376,public From: dvdeug@x8b4e53cd.dhcp.okstate.edu (David Starner) Subject: Re: The Ada Scalar, Vector, Matrix and Tensor arithmetic library? Date: 1999/12/05 Message-ID: <82e6pv$79q1@news.cis.okstate.edu>#1/1 X-Deja-AN: 556973322 References: <38497235.D8339C38@netwood.net> <82btoo$8201@news.cis.okstate.edu> <82buhr$8q61@news.cis.okstate.edu> <38498EB1.306427C8@netwood.net> <82c7mu$a2g1@news.cis.okstate.edu> <3849E314.6281FC6D@netwood.net> <82cors$9281@news.cis.okstate.edu> <82dk7t$5ka$1@birch.prod.itd.earthlink.net> <01bf3f36$43ebbd50$022a6282@dieppe> Organization: Oklahoma State University User-Agent: slrn/0.9.5.7 (UNIX) Reply-To: dstarner98@aasaa.ofe.org Newsgroups: comp.lang.ada Date: 1999-12-05T00:00:00+00:00 List-Id: On 5 Dec 1999 15:34:20 GMT, Pascal Obry wrote: >Right, I completly agree. We really want to make any abstraction >usable for a *human* and just let the compiler do its job. > >It cost less today to buy a new fastest machine than to jungle around >with the code in the hope to gain some percent of performance. It takes >a lot of time to tune the code and it is often a real nightmare to maintain >this kind code. But in the aplications where vector and matrix libraries are used, this isn't always true. Sometimes, you need to do a simulation once or twice, because tomorrow's fastest machine and tomorrow's theories will call for a whole new simulation with different simplifications. But every 5% you shave off means a day or two in time saved each time it runs. No worries about maintainability, you already have the fastest machine/ your budgets gone for this year (with man power is already payed for), but it would be nice not to have everything waiting on the program to finish. -- David Starner - dstarner98@aasaa.ofe.org I see no trend at all, except toward women playing mean and ugly sociopaths who are good at killing and who enjoy dark powers. Maybe it's just my friends? -- Dr. Kromm, on who plays what type of character in RPGs