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=0.4 required=5.0 tests=BAYES_00,FORGED_MUA_MOZILLA autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,e5bcee954d4dd021,start X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Received: by 10.68.30.202 with SMTP id u10mr1794430pbh.1.1319780452524; Thu, 27 Oct 2011 22:40:52 -0700 (PDT) Path: p6ni9588pbn.0!nntp.google.com!news1.google.com!npeer02.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!post01.iad.highwinds-media.com!newsfe13.iad.POSTED!00000000!not-for-mail From: Brad Moore User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1 MIME-Version: 1.0 Newsgroups: comp.lang.ada Subject: ANNOUNCE: Paraffin 2.0 for GNAT and ICC Ada 2005 compilers Message-ID: NNTP-Posting-Host: 184.64.75.84 X-Complaints-To: internet.abuse@sjrb.ca X-Trace: newsfe13.iad 1319780452 184.64.75.84 (Fri, 28 Oct 2011 05:40:52 UTC) NNTP-Posting-Date: Fri, 28 Oct 2011 05:40:52 UTC Date: Thu, 27 Oct 2011 23:40:48 -0600 Xref: news1.google.com comp.lang.ada:18732 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Date: 2011-10-27T23:40:48-06:00 List-Id: I am pleased to announce the availability of Paraffin 2.0. Paraffin is a suite of generics for Ada 2005 that can add parallelism to loops and recursive algorithms. Since the initial (previous) release of Paraffin, there have been a number of improvements. Some of these include: 1) Paraffin and the Irvine ICC Ada 2005 compiler Paraffin has been compiled and tested using the Irvine ICC Ada 2005 compiler, running on both Windows and Linux. See http://www.irvine.com for more information about their compiler 2) Paraffin on an Android Samsung Galaxy S II smart phone Paraffin has been compiled and tested using GNAT AUX on an Android Samsung Galaxy S II Smart phone. See http://www.dragonlace.net for more information about this compiler This is a dual core smartphone, which benefits from Paraffin's parallelism. But note that for recursive problems, another new feature (described below) makes it attractive to also run Paraffin on Android devices that only have a single core. 3) Paraffin and the GNAT 2011 GPL compiler Paraffin has been compiled and tested using GNAT 2010 and 2011 GPL versions of the compiler on both Windows and Linux. See http://libre.adacore.com/libre for more information about this compiler. 4) Stack Safe Recursive Parallelism Support Paraffin now includes generics that allow deep recursion using a small stack. The generics feature parallel work seeking that monitors the usage of each workers stack, and defers work if the stack resource is approaching depletion. This allows idle worker tasks to resume the deferred work with a fresh stack, in a safe manner until all the work has been completed. Testing has shown that the overhead associated with the stack monitoring is minimal, and that the performance is such that it can also be attractive to consider using on systems that only have a single core. 5) Stack depth filtering generics. Generics have been added that filter out poor work offers based on the depth of the recursion. 6) The optimal worker count is calculated by default for iterative looping, based on the number of available cores, and the number of iterations. 7) Increased portability, by providing the "Any" target, which does not use any OS services or vendor specific libraries. 8) Numerous performance improvements, particularly for the recursive generics, which were significantly improved. 7) Various bug fixes . You can get the source code from SourceForge: https://sourceforge.net/projects/paraffin/files/ Brad Moore