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=ham autolearn_force=no version=3.4.4 X-Google-Thread: 103376,da38106463609bde X-Google-Attributes: gid103376,public X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news3.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local01.nntp.dca.giganews.com!nntp.comcast.com!news.comcast.com.POSTED!not-for-mail NNTP-Posting-Date: Sat, 10 Sep 2005 17:49:44 -0500 From: tmoran@acm.org Newsgroups: comp.lang.ada Subject: Re: Ada and multi-core CPUs References: X-Newsreader: Tom's custom newsreader Message-ID: Date: Sat, 10 Sep 2005 17:49:44 -0500 NNTP-Posting-Host: 24.6.102.223 X-Trace: sv3-nExxRm9rhZgwD33ftRp592sxepxeWStM9VpZkLz1aB9wTYcgMUl/HQuQapgoXS9DwroConHUZfvCMRv!J12CIwShtBrG7TvDWF84mQRODeqZ+EJ5VyJ3SJAoRWrJOim6r20weOgD16Iv1nX+5Owuz48ngpaA X-Complaints-To: abuse@comcast.net X-DMCA-Complaints-To: dmca@comcast.net 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: 1.3.32 Xref: g2news1.google.com comp.lang.ada:4573 Date: 2005-09-10T17:49:44-05:00 List-Id: > Only Hyperthreading with single-core or a real dual-core/SMP-system? I ran the test on my single-core hyperthreaded system. If you have a true dual-core system I'd be curious to hear your results. After running in 60% of the time by splitting in half, sorting, then merging the two halves, I tried burying the tasking inside a quicksort. On the first partitioning, one of the partitions goes to a separate task. That ran around 75%, perhaps because the partitions are likely not the same size.