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=0.1 required=5.0 tests=AWL autolearn=disabled version=3.1.3 X-Original-To: caml-list@yquem.inria.fr Delivered-To: caml-list@yquem.inria.fr Received: from mail2-relais-roc.national.inria.fr (mail2-relais-roc.national.inria.fr [192.134.164.83]) by yquem.inria.fr (Postfix) with ESMTP id 62CD4BBAF for ; Fri, 11 Jul 2008 17:21:02 +0200 (CEST) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AkIDAMMWd0jAbSoIiGdsb2JhbACSJwEBAQ8gnGg X-IronPort-AV: E=Sophos;i="4.30,346,1212357600"; d="scan'208";a="13038385" Received: from einhorn.in-berlin.de ([192.109.42.8]) by mail2-smtp-roc.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-SHA; 11 Jul 2008 17:21:01 +0200 X-Envelope-From: oliver@first.in-berlin.de Received: from einhorn.in-berlin.de (localhost [127.0.0.1]) by einhorn.in-berlin.de (8.13.6/8.13.6/Debian-1) with ESMTP id m6BFKwES014457 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Fri, 11 Jul 2008 17:20:59 +0200 Received: (from www-data@localhost) by einhorn.in-berlin.de (8.13.6/8.13.6/Submit) id m6BFKwLp014455; Fri, 11 Jul 2008 17:20:58 +0200 X-Authentication-Warning: einhorn.in-berlin.de: www-data set sender to oliver@first.in-berlin.de using -f Received: from dslb-088-074-002-030.pools.arcor-ip.net (dslb-088-074-002-030.pools.arcor-ip.net [88.74.2.30]) by webmail.in-berlin.de (IMP) with HTTP for ; Fri, 11 Jul 2008 17:20:58 +0200 Message-ID: <1215789658.48777a5aa672b@webmail.in-berlin.de> Date: Fri, 11 Jul 2008 17:20:58 +0200 From: Oliver Bandel To: Xavier Leroy Cc: J C , caml-list@yquem.inria.fr Subject: Re: [Caml-list] thousands of CPU cores References: <487768E2.6000108@inria.fr> In-Reply-To: <487768E2.6000108@inria.fr> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit User-Agent: Internet Messaging Program (IMP) 3.2.6 X-Scanned-By: MIMEDefang_at_IN-Berlin_e.V. on 192.109.42.8 X-Spam: no; 0.00; bandel:01 in-berlin:01 parallelism:01 gerd:01 stolpmann:01 ocaml:01 know-how:98 oliver:01 oliver:01 caml-list:01 functional:02 functional:02 programming:03 programming:03 concurrent:04 Zitat von Xavier Leroy : [...] > The interesting question that this community should focus on > (rather than throwing fits about concurrent GC and the like) is > coming > up with good programming models for parallelism. OK, I agree, but parallel programming is not really new. It's just new on or small PCs we ahve at home It's used since 20 years on high-performance/high-end computers. I'm not sure there were functional programming models used, I rather doubt this, but I'm not very familiar with that area. If there already would be some kind of know-how in parallel functional programming, this might be adapted to the PCs. [...] > I'm quite fond of > message passing myself, but agree that more constrained data-parallel > models have value as well. As Gerd Stolpmann mentioned, various > forms > of message passing can be exploited from OCaml today, but there is > certainly room for improvement there. [...] Can you name it? I mean... the room for improvement. Ciao, Oliver