Path: csiph.com!feeder.erje.net!2.eu.feeder.erje.net!newsfeed.kamp.net!newsfeed.kamp.net!fu-berlin.de!uni-berlin.de!not-for-mail From: Francesc Alted Newsgroups: comp.lang.python.announce Subject: ANN: numexpr 2.6.1 released Date: Sun, 17 Jul 2016 11:57:54 +0200 Lines: 61 Approved: python-announce-list@python.org Message-ID: References: Reply-To: faltet@gmail.com Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: news.uni-berlin.de juJKhz6Y5G8u5MLq6BBEVw8iUMP/ueh9DqIjeTbo/ldg== Return-Path: X-Original-To: python-announce-list@python.org Delivered-To: python-announce-list@mail.python.org X-Spam-Status: OK 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'url:pypi': 0.03; 'cache': 0.05; 'fixes': 0.05; 'dependency': 0.07; 'expressions': 0.07; 'pypi': 0.07; 'subject:ANN': 0.07; 'subject:released': 0.07; 'suggestions,': 0.07; 'added.': 0.09; 'cc:addr:googlegroups.com': 0.09; 'library),': 0.09; 'regression': 0.09; 'url:github': 0.09; 'url:rst': 0.09; 'python.': 0.11; '(but': 0.15; '1024': 0.16; '==========': 0.16; 'alted': 0.16; 'bugs,': 0.16; 'francesc': 0.16; 'from:addr:faltet': 0.16; 'from:name:francesc alted': 0.16; 'netbsd': 0.16; 'numpy': 0.16; 'operands': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'memory': 0.17; 'numerical': 0.18; 'skip:= 10': 0.18; 'cc:addr:python.org': 0.20; 'cc:2**2': 0.20; 'arrays': 0.22; 'constant': 0.22; 'see:': 0.22; 'skip:= 20': 0.22; '(like': 0.23; 'message-id:@mail.gmail.com': 0.27; 'cc:no real name:2**1': 0.29; 'allows': 0.30; 'url:wiki': 0.30; 'version,': 0.30; 'operate': 0.32; 'changed': 0.33; 'url:python': 0.33; 'skip:& 20': 0.35; 'received:google.com': 0.35; 'requiring': 0.35; 'project': 0.36; 'there': 0.36; 'url:org': 0.36; 'evaluation': 0.36; 'hosted': 0.36; 'subject:: ': 0.37; 'thanks': 0.37; 'release': 0.37; 'doing': 0.38; 'detail': 0.38; 'drop': 0.38; 'where': 0.40; 'some': 0.40; 'your': 0.60; 'share': 0.61; 'engine': 0.62; 'thomas': 0.63; 'more': 0.63; 'enjoy': 0.66; 'here': 0.66; 'header:Reply-To:1': 0.67; 'reply-to:no real name:2**0': 0.71; 'reply-to:addr:gmail.com': 0.76; 'heavy': 0.81; 'url:master': 0.84; 'adopt': 0.91; 'announcing': 0.91; 'have.': 0.93 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:reply-to:from:date:message-id:subject:to:cc; bh=XTeUzBUmq2n22RgE8MjKYHejxhYys+ZGsiPj4eonaos=; b=AvQ/xPvtgMOHTDjGgeaFfpLjld1keaj3fGWwZM2dU/YmlcqjmnJC4WKxHqcA2ObieR /Z2wC9kxDpx/sznkL5ussHQA/fcz8nlDk6noe15z18DIzgfP1qz7xQPPY4hTC56V3/W2 ad1ciUrvi/nMPOahRi+moQTFpm1TgZLsvTA1YNd9Y6h32PxeErYPQefqTBIPdD4orYiD YeuSPTWry7QqYp9H/Gq41ZbC1pmd20i6CGKOojIptO06Ilf/5+dUH2raTrr246EsbMO8 R8BTBrXK5/P7C8c1eQLm+UNaA9m/YV4uF2O4+5jcT5c5mMcAuNrxfSqdhWEHxGpKDuKN 3zQQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:reply-to:from:date:message-id :subject:to:cc; bh=XTeUzBUmq2n22RgE8MjKYHejxhYys+ZGsiPj4eonaos=; b=k8QdHq5HZjONZoLYyJ6nKrKJBWBv8hqcX33ao+YeMmcT1aiXdDbC8FpKON8BpKQSBQ 11IoOcFgaYIOMsQJ1lz86hedLwWi9NHMUHpdyxL9HjQytTtoqEwc7NcoB3pzQ6XBJMdR 4g6KmigaB4sn/T9MEuNrMzVHBDcWBaM7Dpk9k/LQNijRrk2mSMnjn8RZiRIklBjs8A5f Ov/Hz6fC1hAbPsuVRVBlUf3hOF+FujNGjCOHKWu0dnLGKpb0+0lV/U7FGfmBvfMN62KW pVPUMaOC/Mav3X/WcjgkkRxQktoPinjxub35/W+N0nPVb4cDSLzgDAI8ZHglQJMAt6Q0 e5KQ== X-Gm-Message-State: ALyK8tK2G16K2B41XStQ6BDKSUrROogEnEXVVtjvfFb+tTYGbvBP3eO/FQD6lQbnnqOtnoIJnHLcyR6qo8RlbQ== X-Received: by 10.129.72.201 with SMTP id v192mr21721154ywa.231.1468749474850; Sun, 17 Jul 2016 02:57:54 -0700 (PDT) X-Mailman-Approved-At: Sun, 17 Jul 2016 09:05:26 -0400 X-Content-Filtered-By: Mailman/MimeDel 2.1.22 X-BeenThere: python-announce-list@python.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Announcement-only list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: Xref: csiph.com comp.lang.python.announce:2214 ========================= Announcing Numexpr 2.6.1 ========================= What's new ========== This is a maintenance release that fixes a performance regression in some situations. More specifically, the BLOCK_SIZE1 constant has been set to 1024 (down from 8192). This allows for better cache utilization when there are many operands and with VML. Fixes #221. Also, support for NetBSD has been added. Thanks to Thomas Klausner. In case you want to know more in detail what has changed in this version, see: https://github.com/pydata/numexpr/blob/master/RELEASE_NOTES.rst What's Numexpr ============== Numexpr is a fast numerical expression evaluator for NumPy. With it, expressions that operate on arrays (like "3*a+4*b") are accelerated and use less memory than doing the same calculation in Python. It wears multi-threaded capabilities, as well as support for Intel's MKL (Math Kernel Library), which allows an extremely fast evaluation of transcendental functions (sin, cos, tan, exp, log...) while squeezing the last drop of performance out of your multi-core processors. Look here for a some benchmarks of numexpr using MKL: https://github.com/pydata/numexpr/wiki/NumexprMKL Its only dependency is NumPy (MKL is optional), so it works well as an easy-to-deploy, easy-to-use, computational engine for projects that don't want to adopt other solutions requiring more heavy dependencies. Where I can find Numexpr? ========================= The project is hosted at GitHub in: https://github.com/pydata/numexpr You can get the packages from PyPI as well (but not for RC releases): http://pypi.python.org/pypi/numexpr Share your experience ===================== Let us know of any bugs, suggestions, gripes, kudos, etc. you may have. Enjoy data! -- Francesc Alted