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=0.0 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 concorde.inria.fr (concorde.inria.fr [192.93.2.39]) by yquem.inria.fr (Postfix) with ESMTP id 5D693BC69 for ; Thu, 31 May 2007 17:28:42 +0200 (CEST) Received: from pih-relay04.plus.net (pih-relay04.plus.net [212.159.14.131]) by concorde.inria.fr (8.13.6/8.13.6) with ESMTP id l4VFSfPU021493 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO) for ; Thu, 31 May 2007 17:28:42 +0200 Received: from [80.229.56.224] (helo=beast.local) by pih-relay04.plus.net with esmtp (Exim) id 1HtmZs-0007Rp-6v for caml-list@yquem.inria.fr; Thu, 31 May 2007 16:28:40 +0100 From: Jon Harrop Organization: Flying Frog Consultancy Ltd. To: caml-list@yquem.inria.fr Subject: Re: [Caml-list] Comparison of OCaml and MLton for numerics Date: Thu, 31 May 2007 16:23:12 +0100 User-Agent: KMail/1.9.7 References: <5195a210705302250u6a9e5adey4ed857480f9e5cd8@mail.gmail.com> <465EE6A6.7050207@univ-savoie.fr> In-Reply-To: <465EE6A6.7050207@univ-savoie.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705311623.12442.jon@ffconsultancy.com> X-Miltered: at concorde with ID 465EE9A9.003 by Joe's j-chkmail (http://j-chkmail . ensmp . fr)! X-Spam: no; 0.00; ocaml:01 christophe:01 raffalli:01 arrays:01 unboxed:01 arrays:01 ocaml:01 frog:98 wrote:01 caml-list:01 floats:02 comparison:04 size:95 buy:92 alas:07 On Thursday 31 May 2007 16:15:50 Christophe Raffalli wrote: > Either use array of records (you will have one box), one array of double > size or two separate arrays (no boxing at all). That would be good advice were kx and ky both floats but, alas, one is not. So using a record doesn't buy you anything (only all-float records are unboxed) and you cannot use a double length array. I tried two arrays and it was significantly faster. -- Dr Jon D Harrop, Flying Frog Consultancy Ltd. OCaml for Scientists http://www.ffconsultancy.com/products/ocaml_for_scientists/?e