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=-1.9 required=5.0 tests=BAYES_00 autolearn=unavailable autolearn_force=no version=3.4.4 X-Received: by 10.224.130.195 with SMTP id u3mr16917653qas.1.1368376524019; Sun, 12 May 2013 09:35:24 -0700 (PDT) Path: border1.nntp.dca3.giganews.com!Xl.tags.giganews.com!border2.nntp.dca3.giganews.com!border4.nntp.dca.giganews.com!border2.nntp.dca.giganews.com!l3no4996229qak.0!news-out.google.com!y6ni36122qax.0!nntp.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local2.nntp.dca.giganews.com!nntp.earthlink.com!news.earthlink.com.POSTED!not-for-mail NNTP-Posting-Date: Sun, 12 May 2013 11:35:23 -0500 From: Dennis Lee Bieber Newsgroups: comp.lang.ada Subject: Re: do ada tasks run accross 16 cpu boxs? or stuck on 1 cpu? Date: Sun, 12 May 2013 12:35:27 -0400 Organization: > Bestiaria Support Staff < Message-ID: References: <19811f9b-0fe9-449c-a082-4764a2bc66c4@googlegroups.com> <518f4114$0$14836$703f8584@news.kpn.nl> X-Newsreader: Forte Agent 3.3/32.846 X-No-Archive: YES MIME-Version: 1.0 X-Usenet-Provider: http://www.giganews.com NNTP-Posting-Host: 76.253.105.168 X-Trace: sv3-LP6upjldia6WDd0a+kWoMsZFmlwZNVd6/5zsStXE5v1fPVOuMPLga4IdFs/JNmYHLJgFiCezvSq3IQ5!KdGbUP7tszJtAtW8QJaUYv9v5d1YBrSDlzkv71lnt0mtaNLL4o8yO0S/KAWOp37lGtt1fobvmsfT!jZmJdbXg49LyF+Ie94Aj9TYYvWn8/mWEQ0ii8xc2Apc= X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 2588 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Xref: number.nntp.dca.giganews.com comp.lang.ada:181607 Date: 2013-05-12T12:35:27-04:00 List-Id: On Sun, 12 May 2013 09:17:25 +0200, "ldries46" declaimed the following in comp.lang.ada: > I just have created my own program in which I originally did all ca;vulation > on one CPU. Now I created a part of the calculation in tasks running > paralel. On my four core systemI achieved a speed that exceded the original > speed by a factor of more than 3. This meant three cores were running the > intensive calculation part in the tasks and one the administration around > the proces. (all with GNAT ADA on windows 7). The same exe file ran even > faster on a 4 core with hyperthreading machine of which the clock speed was > lower than that of the first test. I did nothing extraordinary to achieve > this. > I suspect you had a number cruncher application in which the intense code and most data all fit within each core's high-speed cache. -- Wulfraed Dennis Lee Bieber AF6VN wlfraed@ix.netcom.com HTTP://wlfraed.home.netcom.com/