From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from conssluserg-06.nifty.com (conssluserg-06.nifty.com [210.131.2.91]) by sourceware.org (Postfix) with ESMTPS id C77633858034 for ; Wed, 19 May 2021 09:12:45 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org C77633858034 Received: from Express5800-S70 (y084232.dynamic.ppp.asahi-net.or.jp [118.243.84.232]) (authenticated) by conssluserg-06.nifty.com with ESMTP id 14J9CFou001637 for ; Wed, 19 May 2021 18:12:15 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conssluserg-06.nifty.com 14J9CFou001637 X-Nifty-SrcIP: [118.243.84.232] Date: Wed, 19 May 2021 18:12:18 +0900 From: Takashi Yano To: cygwin@cygwin.com Subject: Re: [ANNOUNCEMENT] Updated: openblas-0.3.14-1 Message-Id: <20210519181218.de23e36e1fcec21656f274a6@nifty.ne.jp> In-Reply-To: References: X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.30; i686-pc-mingw32) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, KAM_NUMSUBJECT, NICE_REPLY_A, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 May 2021 09:12:49 -0000 On Wed, 31 Mar 2021 21:03:03 +0200 Marco Atzeri wrote: > New releases 0.3.14-1 of > > openblas (source) > libopenblas (dinamic library) > > are available in the Cygwin distribution : > > CHANGES > Last upstream release bugfix and performance improvment > https://github.com/xianyi/OpenBLAS/releases > > OpenBLAS will now provide enough buffer space for at > least 50 threads by default. > > DESCRIPTION > OpenBLAS is an optimized BLAS library based on > GotoBLAS2 1.13 BSD version and further extended. > OpenBLAS is licensed under the 3-clause BSD license. > > HOMEPAGE > http://www.openblas.net/ > > CYGWIN NOTES > 1) As BLAS it is around 5-10 times faster than Netlib reference, > included in the liblapack0 package. > > 2) No devel package is provided as liblapack-devel already provide > the needed headers and import. > Openblas is fully compatible with Netlib BLAS. > > 3) libopenblas consist of a single file > /usr/bin/cygblas-0.dll > that will precede in PATH the liblapack0 > /usr/lib/lapack/cygblas-0.dll > and used instead. Removing libopenblas will restore the > usage of Netlib BLAS > > 4) CPU architecture covered up to now > > 64 bit > ATOM BARCELONA BOBCAT BULLDOZER CORE2 DUNNINGTON EXCAVATOR > HASWELL NANO NEHALEM OPTERON OPTERON_SSE3 PENRYN PILEDRIVER > PRESCOTT SANDYBRIDGE STEAMROLLER ZEN > > 32 bit > ATHLON ATOM BANIAS BARCELONA BOBCAT COPPERMINE CORE2 > DUNNINGTON KATMAI NANO NEHALEM NORTHWOOD OPTERON > OPTERON_SSE3 PENRYN PRESCOTT After upgrading libopenblas from 0.3.12-2 to 0.3.14-1, octave 5.2.0 crashes on plot command in 64 bit environment. In 32 bit cygwin (WoW64), this does not happen. Reverting libopenblas to 0.3.12-1 resolve the issue. octave:1> plot([]) fatal: caught signal Illegal instruction -- stopping myself... Illegal instruction(core dumped) My environment: OS: Windows 10 20H2 (64 bit) CPU: Inte Core i7 870 (Lynnfield) [yano@Express5800-S70 ~]$ cygcheck -c cygwin octave libopenblas Cygwin Package Information Package Version Status cygwin 3.2.0-1 OK libopenblas 0.3.14-1 OK octave 5.2.0-1 OK By starting octave-cli in gdb, it stops at vmovaps instruction in gemm_(). IIUC, vmovaps is an AVX instruction which is not supported by Core i7 870. In another PC with Core i7-4790 which supports AVX, the issue does not occur. -- Takashi Yano