Return-Path: X-Original-To: apmail-madlib-dev-archive@minotaur.apache.org Delivered-To: apmail-madlib-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id ABC3919FEA for ; Mon, 14 Mar 2016 11:17:48 +0000 (UTC) Received: (qmail 79316 invoked by uid 500); 14 Mar 2016 11:17:48 -0000 Delivered-To: apmail-madlib-dev-archive@madlib.apache.org Received: (qmail 79276 invoked by uid 500); 14 Mar 2016 11:17:48 -0000 Mailing-List: contact dev-help@madlib.incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@madlib.incubator.apache.org Delivered-To: mailing list dev@madlib.incubator.apache.org Received: (qmail 79260 invoked by uid 99); 14 Mar 2016 11:17:48 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 14 Mar 2016 11:17:48 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id BDAFC1800EC for ; Mon, 14 Mar 2016 11:17:47 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -0.471 X-Spam-Level: X-Spam-Status: No, score=-0.471 tagged_above=-999 required=6.31 tests=[FREEMAIL_ENVFROM_END_DIGIT=0.25, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_PASS=-0.001] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id zVoUxZgOoVsd for ; Mon, 14 Mar 2016 11:17:46 +0000 (UTC) Received: from BLU004-OMC1S37.hotmail.com (blu004-omc1s37.hotmail.com [65.55.116.48]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTPS id 5369A5F575 for ; Mon, 14 Mar 2016 11:17:46 +0000 (UTC) Received: from BLU437-SMTP89 ([65.55.116.8]) by BLU004-OMC1S37.hotmail.com over TLS secured channel with Microsoft SMTPSVC(7.5.7601.23008); Mon, 14 Mar 2016 04:17:40 -0700 X-TMN: [5N7ocK2+/zv+iHEB7nfh8QQ+yRUfFPSa] X-Originating-Email: [hi181904665@msn.com] Message-ID: Subject: Re: Spatial model in MADlib (GWR) To: dev@madlib.incubator.apache.org References: From: chenliang wang Date: Mon, 14 Mar 2016 19:17:36 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.5.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 14 Mar 2016 11:17:39.0595 (UTC) FILETIME=[1EA9D5B0:01D17DE3] Hi, Frank Recently,I am just looking at the detail of development guide and trying to complete the serial algorithm. And I plan to implement GWR dividing the loop into pieces of chunks executed in several nodes. However, I am not sure if there are some specials details need to be designed for distributed models in GPDB because I haven't developed model in MPP architecture. I hope this distributed manner would be implemented easily. Best, Chenliang Wang On 03/10/2016 08:33 AM, Frank McQuillan wrote: > Hi ChenLiang Wang, > > I am checking to see how things are going regarding the GWR model for > MADlib that you proposed. Not sure which phase you are at, but a suggested > next step might be how you plan to implement the GWR algorithm in a > distributed manner. That is, how will it run in parallel? > > (Starting as a new thread since the previous thread fragmented.) > > Regards, > Frank >