Return-Path: X-Original-To: apmail-commons-issues-archive@minotaur.apache.org Delivered-To: apmail-commons-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 5733F18A5C for ; Tue, 20 Oct 2015 17:41:39 +0000 (UTC) Received: (qmail 39828 invoked by uid 500); 20 Oct 2015 17:41:27 -0000 Delivered-To: apmail-commons-issues-archive@commons.apache.org Received: (qmail 39703 invoked by uid 500); 20 Oct 2015 17:41:27 -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 39690 invoked by uid 99); 20 Oct 2015 17:41:27 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 20 Oct 2015 17:41:27 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id ACE402C1F5F for ; Tue, 20 Oct 2015 17:41:27 +0000 (UTC) Date: Tue, 20 Oct 2015 17:41:27 +0000 (UTC) From: "Tillmann Gaida (JIRA)" To: issues@commons.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (MATH-1282) BOBYQA trsbox infinite loop MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Tillmann Gaida created MATH-1282: ------------------------------------ Summary: BOBYQA trsbox infinite loop Key: MATH-1282 URL: https://issues.apache.org/jira/browse/MATH-1282 Project: Commons Math Issue Type: Bug Affects Versions: 3.2 Reporter: Tillmann Gaida Apparently the BOBYQA optimizer can get stuck in the trsbox method. This happened to us out of the blue after millions of successful optimizations. Unfortunately our target function has too many dependencies, so I can't provide a unit test for the full optimization. I have however created a unit test which isolates the call to trsbox: http://pastebin.com/wYPVS3SC I took a quick look at the code, but it looks like one can't understand a thing without having read the original paper. Can someone help? -- This message was sent by Atlassian JIRA (v6.3.4#6332)