You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@systemml.apache.org by "Matthias Boehm (JIRA)" <ji...@apache.org> on 2017/08/23 05:07:00 UTC

[jira] [Created] (SYSTEMML-1861) Performance sparse-sparse binary ops

Matthias Boehm created SYSTEMML-1861:
----------------------------------------

             Summary: Performance sparse-sparse binary ops
                 Key: SYSTEMML-1861
                 URL: https://issues.apache.org/jira/browse/SYSTEMML-1861
             Project: SystemML
          Issue Type: Task
            Reporter: Matthias Boehm


This task aims to improve the performance of sparse-sparse binary operations such as elementwise multiply. Currently, we use a merge join with outer join semantics to cover the general case - for operations like multiply this is unnecessary and could be improved by using inner join semantics and branchless position maintenance.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)