From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-x52d.google.com (mail-ed1-x52d.google.com [IPv6:2a00:1450:4864:20::52d]) by sourceware.org (Postfix) with ESMTPS id 159A03840C0A for ; Sun, 21 Jun 2020 19:47:31 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 159A03840C0A Received: by mail-ed1-x52d.google.com with SMTP id y6so11929060edi.3 for ; Sun, 21 Jun 2020 12:47:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=Ejw+n6pDr8lZPFTMEu+Gc3pRhxr5DSRS0doTUO+wmQ0=; b=OsYD7gzMlKvTD6UUGuecnfwDJidT1aphu/SHg3zJ5bv7dzaez6aaV/Oo31OoN7O9Bn pjdVr+TWfcRC71iyP19G+4TjXhgRyfZ7O2J/fIVpaCywZf1d/tWUmDq9Ajpo/pK7a1zr ilsK3EB7qKE/cXnVD1c5BpgyiEbr3SrvStzMcUSseFfvK02V03myyrccvEtOkBCP38+N rL/kCvl5Nvh/aMSzG9TC/pAylFR9RJZ5LOZ9K0N0HVJJfmaEZduLrqDDEXo+EKTCIGda yPcP75h7jcHWCIZX6zWenXPcXV9otIYgSTG7MOX8iSb8jaDl+0j4+OGxRmSdqBbl2wPo /YWg== X-Gm-Message-State: AOAM533p6R7kKjLh9fOjKmVpULP87tJsqtnaYwoeHQ+5CjPbx2VVr6tY qC00FLOTx1kuvE0GZFXAaHdwnDXt X-Google-Smtp-Source: ABdhPJyQQxK/mcehjjQAthVolLLXam9VlnJmyKFSBZ0YIVFK9MqbXsASB6M7YTYoRddI9FD4KsFi2g== X-Received: by 2002:aa7:c504:: with SMTP id o4mr3135601edq.311.1592768849963; Sun, 21 Jun 2020 12:47:29 -0700 (PDT) Received: from [192.168.2.121] (pd9ed5fcd.dip0.t-ipconnect.de. [217.237.95.205]) by smtp.gmail.com with ESMTPSA id y21sm10819821edl.72.2020.06.21.12.47.29 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 21 Jun 2020 12:47:29 -0700 (PDT) Subject: Re: What's the official state of Python module scipy in Cygwin? To: cygwin@cygwin.com References: <86888556-a7c2-501f-c734-f0085ea6bdf5@gmail.com> <15e60aa4-000e-2d15-7704-186d594fbfd4@SystematicSw.ab.ca> From: Marco Atzeri Message-ID: <07f31ec7-0107-1d47-ac74-271a4cd200d7@gmail.com> Date: Sun, 21 Jun 2020 21:47:27 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <15e60aa4-000e-2d15-7704-186d594fbfd4@SystematicSw.ab.ca> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: it Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.2 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, 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: Sun, 21 Jun 2020 19:47:32 -0000 On 21.06.2020 21:36, Brian Inglis wrote: > On 2020-06-21 12:31, My Name via Cygwin wrote: >> (M.A., I've figured out how to reply to the Cygwin Mailing List on these. >> If you'd like me to remove your name from the list of addressees in my >> future emails, please let me know? I have not found comprehensive docs for >> this mailing-list software, so I'm clueless.) >> > >> Going by an old memory of mine, I recall that parts of Scipy rely on BLAS, >> https://en.wikipedia.org/wiki/Basic_Linear_Algebra_Subprograms, and I read >> somewhere that that dependency adds to the difficulty of porting Scipy to >> new platforms. > Try installing or upgrading liblapack-devel liblapack-doc libopenblas > openblas-doc and see how far that gets you. > I remember coming across atlas elsewhere, but only know it provides some tuned > BLAS and LAPACK routines. > if Scipy requires just a BLAS, liblapack-devel should be enough for the compilation. libopenblas for compatibility reason provides only the shared library but I am not packing the headers. It helps to run faster any BLAS routine used by programs. ATLAS takes too long to compile and it does NOT provides multiprocessor libraries as OpenBlas. So no interest to package it for Cygwin from my side. Regards Marco