[ https://issues.apache.org/jira/browse/SYSTEMML-1955?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias Boehm closed SYSTEMML-1955. ------------------------------------ > Ultra-sparse matrix multiply for large ultra-sparse matrices > ------------------------------------------------------------ > > Key: SYSTEMML-1955 > URL: https://issues.apache.org/jira/browse/SYSTEMML-1955 > Project: SystemML > Issue Type: Sub-task > Reporter: Matthias Boehm > Assignee: Matthias Boehm > Fix For: SystemML 1.0 > > > Our code path for ultra-sparse matrix multiplies has a condition on the > sparsity but also the absolute number of non-zeros in order to avoid > unnecessary overhead in CP where the entire matrix is a single block. > However, there are use cases, where this approach leads to large allocated > dense outputs although the output is sparse as well. -- This message was sent by Atlassian JIRA (v6.4.14#64029)