[ https://issues.apache.org/jira/browse/SYSTEMML-1976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matthias Boehm updated SYSTEMML-1976: ------------------------------------- Description: Recent ALS-CG experiments with the ultra-sparse amazon reviews dataset (sparsity 1.2e-6) have show unnecessarily slow codegen outer (especially left mm) operations. This task aims to fix this by better cache blocking to ensure blocking itself does not introduce overhead for ultra-sparse matrices. > Slow codegen outer left/right mm w/ ultra-sparse inputs > ------------------------------------------------------- > > Key: SYSTEMML-1976 > URL: https://issues.apache.org/jira/browse/SYSTEMML-1976 > Project: SystemML > Issue Type: Bug > Reporter: Matthias Boehm > > Recent ALS-CG experiments with the ultra-sparse amazon reviews dataset > (sparsity 1.2e-6) have show unnecessarily slow codegen outer (especially left > mm) operations. This task aims to fix this by better cache blocking to ensure > blocking itself does not introduce overhead for ultra-sparse matrices. -- This message was sent by Atlassian JIRA (v6.4.14#64029)