[ https://issues.apache.org/jira/browse/SYSTEMML-1721?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Glenn Weidner updated SYSTEMML-1721: ------------------------------------ Fix Version/s: (was: SystemML 1.0) SystemML 0.15 > Invalid cplan reuse from plan cache > ------------------------------------ > > Key: SYSTEMML-1721 > URL: https://issues.apache.org/jira/browse/SYSTEMML-1721 > Project: SystemML > Issue Type: Bug > Reporter: Matthias Boehm > Assignee: Matthias Boehm > Fix For: SystemML 0.15 > > > Cplans (code generation plans) are hashed and compared in order to reuse > compiled classes in the context of the existing plan cache. In order to > increase reuse potential, this comparison does not include leaf not names or > IDs but their data types and the entire operation DAG on top. However, this > leads to invalid reuse for patterns such {{(c1+c3)*(c2+c3)}} and > {{(c1+c2)*(c3+c3)}}, which are assumed to be equivalent but compute very > different results. > This task aims to fix this for the general case and introduce a dedicated > test suite to ensure proper comparison. -- This message was sent by Atlassian JIRA (v6.4.14#64029)