delorie.com/archives/browse.cgi   search  
Mail Archives: cygwin/2016/07/18/13:29:38

X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
:list-unsubscribe:list-subscribe:list-archive:list-post
:list-help:sender:reply-to:subject:references:to:from:message-id
:date:mime-version:in-reply-to:content-type
:content-transfer-encoding; q=dns; s=default; b=Oy0dbUDuaFWf+/PC
mAckmF3meM57lqk9XvEgm2X+U+aLy8EmyJQ65kT5BCVyQi9TOOfoe2c/pptBMxcK
4236n2r8c+Zoy9s/W7pArs8xnsJsRq6CHyuzL+rTooBXxvNizITeP4+3FrgLrL6Y
AIjloQRlSJg9fcvbXk+QisYvJoM=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
:list-unsubscribe:list-subscribe:list-archive:list-post
:list-help:sender:reply-to:subject:references:to:from:message-id
:date:mime-version:in-reply-to:content-type
:content-transfer-encoding; s=default; bh=0fFYVI39J5zL1hBgt2Vosb
VHvFc=; b=J3/g4lGwOrxAsNwLts8pcV3hHsypfEiM9HjeLNrOMFEN/0iIVGVATo
TamuXvKZ8h+E1sjipXNnvW2yE5PdDeY9sYNu2HHNWa1XfB+ouasQAZlfVPXxHxPz
0bTgE3KyQY2jOI2E+cRKGFU0d0VByi6Opsgy1vkKASVI8XgQLqjPc=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=-0.1 required=5.0 tests=AWL,BAYES_20,KAM_LAZY_DOMAIN_SECURITY,RP_MATCHES_RCVD autolearn=ham version=3.3.2 spammy=kelman, Kelman, H*Ad:D*umass.edu, H*Ad:D*cs.umass.edu
X-HELO: csmail.cs.umass.edu
Reply-To: moss AT cs DOT umass DOT edu
Subject: Re: Parallelization
References: <db3a62ee-a3d2-82df-0eb1-140f442d9f79 AT netcologne DOT de> <loom DOT 20160717T135427-906 AT post DOT gmane DOT org> <b9e23399-e039-2de4-837f-8d46f366c892 AT cs DOT umass DOT edu> <loom DOT 20160718T073628-733 AT post DOT gmane DOT org>
To: cygwin AT cygwin DOT com
From: Eliot Moss <moss AT cs DOT umass DOT edu>
Message-ID: <cfcf9acc-f761-67fe-7983-babf60e9d275@cs.umass.edu>
Date: Mon, 18 Jul 2016 13:29:07 -0400
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0
MIME-Version: 1.0
In-Reply-To: <loom.20160718T073628-733@post.gmane.org>
X-IsSubscribed: yes

On 7/18/2016 1:38 AM, Tony Kelman wrote:
> Eliot Moss <moss <at> cs.umass.edu> writes:
>
>> True ... it also made me think of Python, which is designed to use
>> parallelized numpy (etc.) libraries, optimized for your platform.
>> Can use all the hardware threads on your machine, as well as make
>> good use of vector extensions such as AVX.  A 64-bit (x86-64)
>> version will give best use of vector processing, in my
>> experience.
>>
>> Regards -- Eliot Moss
>
> numpy is only as parallel as the underlying BLAS/LAPACK library that
> it uses is. So if you're using Cygwin's openblas then you're in
> decent shape. But I don't think cv_adams spends much time (if any?)
> in BLAS/LAPACK dense linear algebra functions, I think it's mostly
> dominated by function evaluation time.

Ok -- I'm not sure what to suggest then ...

Regards -- EM

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019