Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id ACFEE200C5A for ; Tue, 18 Apr 2017 17:49:45 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id AB7F5160BA1; Tue, 18 Apr 2017 15:49:45 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id F30E6160B90 for ; Tue, 18 Apr 2017 17:49:44 +0200 (CEST) Received: (qmail 80010 invoked by uid 500); 18 Apr 2017 15:49:44 -0000 Mailing-List: contact issues-help@commons.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: issues@commons.apache.org Delivered-To: mailing list issues@commons.apache.org Received: (qmail 79997 invoked by uid 99); 18 Apr 2017 15:49:44 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 18 Apr 2017 15:49:44 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id C35551AA2C8 for ; Tue, 18 Apr 2017 15:49:43 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -100.002 X-Spam-Level: X-Spam-Status: No, score=-100.002 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id mX-oDhlS7aF7 for ; Tue, 18 Apr 2017 15:49:43 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id BE20360DB8 for ; Tue, 18 Apr 2017 15:49:42 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id 3E398E0874 for ; Tue, 18 Apr 2017 15:49:42 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 9F34421B4F for ; Tue, 18 Apr 2017 15:49:41 +0000 (UTC) Date: Tue, 18 Apr 2017 15:49:41 +0000 (UTC) From: "Rob Tompkins (JIRA)" To: issues@commons.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (MATH-1390) LUDecomposition slow on larger matrices MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Tue, 18 Apr 2017 15:49:45 -0000 [ https://issues.apache.org/jira/browse/MATH-1390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Rob Tompkins updated MATH-1390: ------------------------------- Fix Version/s: (was: 3.7) > LUDecomposition slow on larger matrices > --------------------------------------- > > Key: MATH-1390 > URL: https://issues.apache.org/jira/browse/MATH-1390 > Project: Commons Math > Issue Type: Improvement > Affects Versions: 4.0, 3.7 > Reporter: Wilhelm Burger > Priority: Minor > Labels: performance > Fix For: 4.0 > > Original Estimate: 6h > Remaining Estimate: 6h > > Commons-math LUDecomposition runs ca. 10 times slower than the original (referenced) JAMA implementation for a matrix of size 1600 x 1600, slowdown is noticable above size 750 x 750, regardless of matrix type. > It is suggested to revert to the proven (and fast) JAMA implementation and overhaul the LUDecomposition class (and related classes) in the 'linear' package. -- This message was sent by Atlassian JIRA (v6.3.15#6346)