Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 29 Oct 2002 15:00:01 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 29 Oct 2002 15:00:01 -0500 Received: from zok.SGI.COM ([204.94.215.101]:40349 "EHLO zok.sgi.com") by vger.kernel.org with ESMTP id ; Tue, 29 Oct 2002 15:00:00 -0500 Message-ID: <015e01c27f86$a42d4290$9865fea9@PCJohn> From: "John Hawkes" To: Cc: References: Subject: Re: [BENCHMARK] AIM Independent Resource Benchmark results for kernel-2.5.44 Date: Tue, 29 Oct 2002 12:06:16 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 892 Lines: 29 From: "Jakob Oestergaard" ...[snip]... > The correct way to terminate that loop is, like was already suggested, > doing a comparison to see if the residual is "numerically zero" or > "sufficiently zero-ish for the given purpose". Eg. "delta < 1E-12" or > eventually "fabs(delta) < 1E-12". Tim Witham at the OSDL told me that he ran some experiments with different convergent deltas: zero Rate (ops/sec) Iteration Rate 10-6 331,300 1656.5 10-8 315,049 1575.0 10-10 302,000 1510.0 10-12 292,300 1461.5 10-14 285,400 1427.0 Anything smaller than 10-14 didn't converge. -- John Hawkes - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/