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=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,ad4585f2971e47c5 X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news2.google.com!goblin1!goblin.stu.neva.ru!news2.euro.net!feeder.news-service.com!feeder.news-service.com!216.196.110.146.MISMATCH!border3.nntp.ams.giganews.com!Xl.tags.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!local2.nntp.ams.giganews.com!nntp.bt.com!news.bt.com.POSTED!not-for-mail NNTP-Posting-Date: Wed, 23 Feb 2011 18:16:08 -0600 From: Brian Drummond Newsgroups: comp.lang.ada Subject: Re: Need some light on using Ada or not Date: Thu, 24 Feb 2011 00:19:02 +0000 Reply-To: brian@shapes.demon.co.uk Message-ID: References: <4d5ef836$0$23753$14726298@news.sunsite.dk> <7ibvl6tn4os3njo3p4kek9kop44nke3n7t@4ax.com> <4d5fd57d$0$6992$9b4e6d93@newsspool4.arcor-online.net> <4D617036.4080902@obry.net> <6nm4m6h6il8j02l9b11qkjsg3k2cjhjul8@4ax.com> X-Newsreader: Forte Agent 1.7/32.534 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Usenet-Provider: http://www.giganews.com X-AuthenticatedUsername: NoAuthUser X-Trace: sv3-S4X3njA+6p8bLRPWMoLJbJNbnmgShCg/oznQXC9QZLO0GcVLtixQcTbgDQanmKa2Vie3eKgk8K9ccb3!8s/sCGJd2Jpw6k8cvXCxNK3IoownAe+auWbB2Atmy2cu7u5eEKg6nEhGGusDphzSNYtne7lkvzk5!SI8= X-Complaints-To: abuse@btinternet.com X-DMCA-Complaints-To: abuse@btinternet.com 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: 2237 Xref: g2news1.google.com comp.lang.ada:17573 Date: 2011-02-24T00:19:02+00:00 List-Id: On Mon, 21 Feb 2011 13:44:04 +0000, Simon Wright wrote: >Brian Drummond writes: > >> As this is my first experiment with tasking, comments are welcome (and >> I'd be interested to see your version). > >See end. > >> If people think this is worth submitting to the shootout, I'll go >> ahead. > >I think it definitely is: the only Ada code for binary-trees is >single-threaded, so looks needlessly poor. Submitted and accepted, but puzzlingly poor ("CPU seconds" blowing up 3x rather than 2x). I don't have a quad-core Intel system, but the x86 (32-bit) results are actually worse than my laptop! - Brian