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: 109d8a,232e89dd4cc3c154 X-Google-NewGroupId: yes X-Google-Thread: 1014db,232e89dd4cc3c154 X-Google-NewGroupId: yes X-Google-Thread: 1094ba,232e89dd4cc3c154 X-Google-NewGroupId: yes X-Google-Thread: 101deb,dea70f96af442ea2 X-Google-NewGroupId: yes X-Google-Thread: 103376,232e89dd4cc3c154 X-Google-NewGroupId: yes X-Google-Attributes: gid9ef9b79ae9,gid4516fb5702,gid8d3408f8c3,gidbda4de328f,gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,UTF8 Path: g2news1.google.com!news1.google.com!news4.google.com!feeder.news-service.com!newsfeed.kamp.net!newsfeed.kamp.net!newsfeed.freenet.ag!news.netcologne.de!ramfeed1.netcologne.de!newsfeed.arcor.de!newsspool4.arcor-online.net!news.arcor.de.POSTED!not-for-mail Date: Mon, 23 May 2011 09:16:26 +0200 From: Georg Bauhaus User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.17) Gecko/20110414 Thunderbird/3.1.10 MIME-Version: 1.0 Newsgroups: sci.math,comp.lang.c,comp.lang.fortran,comp.lang.pl1,comp.lang.ada Subject: Re: KISS4691, a potentially top-ranked RNG. References: <4dae2a4b$0$55577$c30e37c6@exi-reader.telstra.net> <4dbd6e9c$0$12957$892e0abb@auth.newsreader.octanews.com> <925saiFj03U7@mid.individual.net> <4dbe2304$0$12961$892e0abb@auth.newsreader.octanews.com> <4dda0486$0$67782$c30e37c6@exi-reader.telstra.net> In-Reply-To: <4dda0486$0$67782$c30e37c6@exi-reader.telstra.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Message-ID: <4dda09ca$0$6629$9b4e6d93@newsspool2.arcor-online.net> Organization: Arcor NNTP-Posting-Date: 23 May 2011 09:16:27 CEST NNTP-Posting-Host: 8d047c5e.newsspool2.arcor-online.net X-Trace: DXC=G02m262:h]c>jlK2>IgHGdA9EHlD;3Ycb4Fo<]lROoRa8kFjLh>_cHTX3jm\=]W?CPU9^b X-Complaints-To: usenet-abuse@arcor.de Xref: g2news1.google.com sci.math:220002 comp.lang.c:116887 comp.lang.fortran:41104 comp.lang.pl1:2422 comp.lang.ada:19376 Date: 2011-05-23T09:16:27+02:00 List-Id: On 5/23/11 8:53 AM, robin wrote: > wrote in message news:iplmk8$2s6$1@gosset.csi.cam.ac.uk... > | I accept that Marsaglia's generator is a valid case for using > | fixed-width types, but that is likely to make it very inefficient > | indeed on a system where they are not natural. > > I very much doubt that any new machine is going to offer less than 32 bit > integer words ; for some years now the trend has been to machines of > 64-bit integers. Not sure about the kind and specifics of technical systems in which number generation plays a part. But in case it does matter in computers embedded in other systems: the number of <32bit microcontrollers exceeds the number of >=32bit processors built into PCs and mobile computers (including "cellphones"). According to Wikipedia, counting all CPUs sold, even the share of 8bit µcontrollers is more than a half. (They give sources for the numbers.) TTBOMK, it is very common that C compilers for 8bit µcontrollers will offer int as a 16bit type.