From issues-return-8118-archive-asf-public=cust-asf.ponee.io@systemml.apache.org Sat Mar 31 05:26:04 2018 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 2DB9D180647 for ; Sat, 31 Mar 2018 05:26:03 +0200 (CEST) Received: (qmail 75906 invoked by uid 500); 31 Mar 2018 03:26:03 -0000 Mailing-List: contact issues-help@systemml.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@systemml.apache.org Delivered-To: mailing list issues@systemml.apache.org Received: (qmail 75897 invoked by uid 99); 31 Mar 2018 03:26:02 -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; Sat, 31 Mar 2018 03:26:02 +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 8CDB91A010B for ; Sat, 31 Mar 2018 03:26:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -102.311 X-Spam-Level: X-Spam-Status: No, score=-102.311 tagged_above=-999 required=6.31 tests=[RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-eu.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id 3SJ9k0mZhcox for ; Sat, 31 Mar 2018 03:26:01 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-eu.apache.org (ASF Mail Server at mx1-lw-eu.apache.org) with ESMTP id 4998D5F173 for ; Sat, 31 Mar 2018 03:26:01 +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 86B35E00C9 for ; Sat, 31 Mar 2018 03:26:00 +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 16B7A255FB for ; Sat, 31 Mar 2018 03:26:00 +0000 (UTC) Date: Sat, 31 Mar 2018 03:26:00 +0000 (UTC) From: "Matthias Boehm (JIRA)" To: issues@systemml.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (SYSTEMML-2218) Avoid unnecessary repartitioning after RDD parallelize MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/SYSTEMML-2218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Matthias Boehm updated SYSTEMML-2218: ------------------------------------- Issue Type: Sub-task (was: Task) Parent: SYSTEMML-2219 > Avoid unnecessary repartitioning after RDD parallelize > ------------------------------------------------------ > > Key: SYSTEMML-2218 > URL: https://issues.apache.org/jira/browse/SYSTEMML-2218 > Project: SystemML > Issue Type: Sub-task > Reporter: Matthias Boehm > Priority: Major > > There are cases, where spark mapmm instructions to a repartition of the input RDD in order to ensure output partition sizes <2GB. If the input originates from a RDD parallelize this causes unnecessary shuffle because the parallelize could already bring it into the right number of partitions. -- This message was sent by Atlassian JIRA (v7.6.3#76005)