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 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: New IEEE Language Popularity Ratings Date: Sun, 7 Aug 2016 08:21:04 +0200 Organization: Aioe.org NNTP Server Message-ID: References: <31c22983-150c-4dab-abba-588e15f75914@googlegroups.com> <84d258dc-b60d-4a49-9af4-27dd6f3e5f5f@googlegroups.com> <1703ca9a-2665-4435-9564-4abd8a77ebe9@googlegroups.com> <12ca4276-cd1e-49ae-b5dc-56432e721687@googlegroups.com> <2a3fc931-feb3-4542-a4c9-e43affa5c4f4@googlegroups.com> <6cf84976-e561-4935-b674-6c84fbc0531a@googlegroups.com> NNTP-Posting-Host: xelDFTENDI+dlkJFd2Ot2w.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 X-Notice: Filtered by postfilter v. 0.8.2 Xref: news.eternal-september.org comp.lang.ada:31315 Date: 2016-08-07T08:21:04+02:00 List-Id: On 2016-08-07 03:19, brbarkstrom@gmail.com wrote: >> These tests, while useful, are probably badly outdated for modern algorithms on >> 64-bit processors. More modern tests include TestU01's Crush and Big-Crush test >> suites. The Threefry generator is said to be the fastest to pass all the >> Big-Crush tests. > > The algorithms are mathematical artifacts and they have proofs related > to loss of digital information. Whether or not the bits in the hardware > are 32 or 64 or 128 bits doesn't matter. Neither does the age. Most > mathematical algorithms are essentially ageless. True, but regarding pseudo-random numbers all this does not apply. These numbers are not random. Tests passed or not do not change this. They only show if a given method of generation were suitable to use the generated sequence for a given set of applications. Applications change so the tests must do. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de