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 2017/07/09 04:24:00 UTC
[jira] [Created] (SYSTEMML-1754) Performance removeEmpty w/ shallow
copy if unmodified
Matthias Boehm created SYSTEMML-1754:
----------------------------------------
Summary: Performance removeEmpty w/ shallow copy if unmodified
Key: SYSTEMML-1754
URL: https://issues.apache.org/jira/browse/SYSTEMML-1754
Project: SystemML
Issue Type: Task
Reporter: Matthias Boehm
Often removeEmpty is used to guard against special cases with entirely empty rows or columns. In case of no removed rows or columns the full copy into the output is unnecessarily inefficient. This task aims to modify removeEmpty rows/cols for both dense and sparse matrices to leverage a shallow copy if determined output dimensions match the input dimensions.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)