From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on yquem.inria.fr X-Spam-Level: X-Spam-Status: No, score=0.2 required=5.0 tests=MISSING_HEADERS autolearn=disabled version=3.1.3 X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by yquem.inria.fr (Postfix) with ESMTP id D0BA5BC0A for ; Sun, 11 Feb 2007 14:12:47 +0100 (CET) Received: from smtp2-g19.free.fr (smtp2-g19.free.fr [212.27.42.28]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id l1BDClrn026303 for ; Sun, 11 Feb 2007 14:12:47 +0100 Received: from [192.168.144.3] (lns-bzn-24-82-64-171-238.adsl.proxad.net [82.64.171.238]) by smtp2-g19.free.fr (Postfix) with ESMTP id 67DF27CF3 for ; Sun, 11 Feb 2007 14:12:46 +0100 (CET) Message-ID: <45CF1669.6020508@univ-savoie.fr> Date: Sun, 11 Feb 2007 14:13:13 +0100 From: Christophe Raffalli User-Agent: Thunderbird 1.5.0.9 (Macintosh/20061207) MIME-Version: 1.0 Cc: caml-list@yquem.inria.fr Subject: Re: [Caml-list] Multiplication of matrix in C and OCaml References: <45CAF3E2.7020807@univ-paris12.fr> <200702092353.09173.jon@ffconsultancy.com> <121wkybxh5.fsf@hod.lan.m-e-leypold.de> <200702100224.32450.jon@ffconsultancy.com> In-Reply-To: <200702100224.32450.jon@ffconsultancy.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Miltered: at concorde with ID 45CF164F.000 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)! X-Spam: no; 0.00; christophe:01 raffalli:01 christophe:01 raffalli:01 univ-savoie:01 ocaml:01 gcc:01 caml-list:01 optimization:03 useless:05 guessing:09 constant:10 should:13 result:17 choosed:17 Hi, Picking up one coefficient, choosed randomaly in the matrix should take a constant time and prevent gcc to do any optimization by guessing the the result is useless. Christophe Raffalli