From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) by yquem.inria.fr (Postfix) with ESMTP id 66483BBAF for ; Wed, 10 Mar 2010 21:51:34 +0100 (CET) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: Au0BAAOVl0vRVdO+kGdsb2JhbACQWoIQh2IIFQEBAQEJCQwHEwMfrAaBYYUTLYhKAQEDBYR0BIMX X-IronPort-AV: E=Sophos;i="4.49,616,1262559600"; d="scan'208";a="46310577" Received: from mail-yw0-f190.google.com ([209.85.211.190]) by mail3-smtp-sop.national.inria.fr with ESMTP; 10 Mar 2010 21:51:33 +0100 Received: by ywh28 with SMTP id 28so323621ywh.29 for ; Wed, 10 Mar 2010 12:51:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:content-type:mime-version :subject:from:in-reply-to:date:content-transfer-encoding:message-id :references:to:x-mailer; bh=j/Sxo8HeM1/5iNAa9yGEz/xCzrlLTMuChI9iMdbw6Tk=; b=d31cTS3qDLVQIwUa1DT4NK8D8xjCt3qYqnTCDU8gnaaXTsZLg7tudKPz6rKThWTggr W3zHaAsuYmYdU33XFyD8RVTzriYXyK+UCU28YK+LoldPFzGn5W/9Pzvr28eIAOQnJbee zi/AJ+qpwp2fkxyFTkydcL3S7fmX5+vOlE4rA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=content-type:mime-version:subject:from:in-reply-to:date :content-transfer-encoding:message-id:references:to:x-mailer; b=XZnIins0HaHQh82pEUu07DY87kdWQiyOf9fAuU05GRn/7fMehAttGuqX0Fr5BZxWEi oJ07n1LDANMSHn4tRKsd6HwIa7ADVwhwLWOzWx+37aE4jYLdMurVcjGaDlApiUxKtjNT ywzkdwOIUy/cRXEk1iIIp+U9NRAW27a1cC7xg= Received: by 10.90.5.30 with SMTP id 30mr920648age.25.1268254291269; Wed, 10 Mar 2010 12:51:31 -0800 (PST) Received: from dhcp-129-105-65-141.astro.northwestern.edu (dhcp-129-105-65-141.astro.northwestern.edu [129.105.65.141]) by mx.google.com with ESMTPS id 20sm7037944iwn.13.2010.03.10.12.51.30 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 10 Mar 2010 12:51:30 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Apple Message framework v1077) Subject: Re: [Caml-list] testers wanted for experimental SSE2 back-end From: "Will M. Farr" In-Reply-To: <2a1a1a0c1003101125v32ec2e2fh82bf0e08138f791a@mail.gmail.com> Date: Wed, 10 Mar 2010 14:51:29 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: <87738238-FC9F-456B-B7EC-29C28550A45F@gmail.com> References: <4B967857.3070303@inria.fr> <2a1a1a0c1003101125v32ec2e2fh82bf0e08138f791a@mail.gmail.com> To: caml-list@inria.fr X-Mailer: Apple Mail (2.1077) X-Spam: no; 0.00; model:01 10,:98 biological:98 wrote:01 wrote:01 compilers:01 experimental:01 caml-list:01 oops:01 back-end:02 back-end:02 seems:03 bits:05 tue:06 xavier:06 On Mar 10, 2010, at 1:25 PM, Mike Lin wrote: > On Tue, Mar 9, 2010 at 11:33 AM, Xavier Leroy = wrote: > Note that x86-64 bits systems as well as Mac OS X already use SSE2 as > their default floating-point model. >=20 > I have a bunch of biological sequence analysis stuff that could be = interesting but I am already in x86-64 ("Wow! A 64 bit architecture!"). = The above seems pretty clear but just to verify - I would not benefit = from this new back-end, right? >=20 > Mike Oops. I just ran a bunch of tests on my Mac OS 10.6 system---does that = mean that I compared two sse2 backends? The ocaml-sse2 branch = definitely produced different code than the trunk, but that could easily = be due to any small difference in the two compilers, and not due to a = change of architecture. =20 Will=