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=1.2 required=5.0 tests=AWL,SPF_NEUTRAL autolearn=disabled version=3.1.3 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 5D239BC69 for ; Wed, 24 Oct 2007 21:29:21 +0200 (CEST) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAABc6H0fAXQInh2dsb2JhbACOWgIBCAop X-IronPort-AV: E=Sophos;i="4.21,326,1188770400"; d="scan'208";a="5064528" Received: from concorde.inria.fr ([192.93.2.39]) by mail3-smtp-sop.national.inria.fr with ESMTP; 24 Oct 2007 21:29:11 +0200 Received: from mail4-relais-sop.national.inria.fr (mail4-relais-sop.national.inria.fr [192.134.164.105]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id l9OJTAn3005006 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=OK) for ; Wed, 24 Oct 2007 21:29:10 +0200 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AgAAANs5H0fRVYTwmGdsb2JhbACOWgIBAQcCCBEW X-IronPort-AV: E=Sophos;i="4.21,326,1188770400"; d="scan'208";a="18572070" Received: from an-out-0708.google.com ([209.85.132.240]) by mail4-smtp-sop.national.inria.fr with ESMTP; 24 Oct 2007 21:29:10 +0200 Received: by an-out-0708.google.com with SMTP id c36so54237ana for ; Wed, 24 Oct 2007 12:29:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; bh=PCzutfYNy3JaexQq2KqgEcTiyo+Eo4XEsqfVrTQ1isc=; b=lClqTJVXd04zV8ec5HuCQgT2PbpMu+KcLRVcMimyaQGfzWiOcIoz8MYirtzwoRtLPJMUQ6eldV1e1akwLZA2WTGTXEGXRChmW1Co5xKFAL5R7uleRTf21LJjEw8EsvWvWNjHt99Z698ks+X5eVXYGObicnEWrMzHL/aEPsStm8E= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=soqLMLMQLDltmsl5XfG5MOcrDq4CQ3TsTmDQQX24yWWccIv6DqPJAutqsZn5CAt0FNJ9576dTaEp65IWoNofYioO29ttWO9swuCgk8WAI63pMvkFi4AvqmKWWk1Y+UVwGDrP+StIyPSmQRigPOuzkdgujM3D/rK5RUYBmc8Q9wc= Received: by 10.101.69.10 with SMTP id w10mr1248908ank.1193254148178; Wed, 24 Oct 2007 12:29:08 -0700 (PDT) Received: by 10.35.118.19 with HTTP; Wed, 24 Oct 2007 12:29:08 -0700 (PDT) Message-ID: <666572260710241229r3b9c63cdjf78fbd710d5664a1@mail.gmail.com> Date: Wed, 24 Oct 2007 21:29:08 +0200 From: Adrien To: "Xavier Leroy" Subject: Re: [Caml-list] OCaml on ppc64 (Linux)? Cc: "Richard Jones" , caml-list@inria.fr In-Reply-To: <471F9006.8000905@inria.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <20071023165211.GA8917@furbychan.cocan.org> <471F9006.8000905@inria.fr> X-j-chkmail-Score: MSGID : 471F9D06.000 on concorde : j-chkmail score : X : 0/20 1 0.000 -> 1 X-Miltered: at concorde with ID 471F9D06.000 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)! X-Spam: no; 0.00; ocaml:01 ocaml:01 powerpc:01 more-or-less:01 theorical:01 wikipedia:01 wiki:01 revolution:98 striking:98 caml-list:01 seems:03 playstation:94 playstation:94 simultaneous:05 nader:05 2007/10/24, Xavier Leroy : Then someone told me that the Playstation 3 is a PPC64/Linux > platform... I'm still not quite sure whether having OCaml on > PPC64/Linux is worth the effort, even if we had the corresponding hardware. PlayStation3's processor (the Cell) has some parenty with powerpc but it mostly has differences (cell is a ppc6). It has many cores and in fact a variable number of more-or-less specialized cores. It's a sort of revolution because its SMP capabilities are really different from thos of a Core2Duo or of an Athlon64X2. I think there is at least a theorical interest as it seems to perfectly fit simultaneous processing (but maybe not so close). There is of course wikipedia's article : http://en.wikipedia.org/wiki/Cell_microprocessor It shows Cell should make its way in super-computing. But more striking are examples of cell's power and scalability (at least apparent): http://www.spectrum.ieee.org/print/4837 http://www.rapidmind.net/case-studies.php I don't know of any recent and proper independant benchmarks but when I first read about it, Cell looked like a thing we should keep an eye on. --- Adrien Nader