[ https://issues.apache.org/jira/browse/MAHOUT-1724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmitriy Lyubimov updated MAHOUT-1724: ------------------------------------- Status: Patch Available (was: Open) > Optimizations of matrix-matrix in-core multiplication based on structural > flavors > --------------------------------------------------------------------------------- > > Key: MAHOUT-1724 > URL: https://issues.apache.org/jira/browse/MAHOUT-1724 > Project: Mahout > Issue Type: Improvement > Reporter: Dmitriy Lyubimov > Assignee: Dmitriy Lyubimov > Fix For: 0.10.2 > > > Current times() operation suffers a lot. Especially when e.g. column-major > iterations are done over a matrix backed by row-major sequential sparse > vectors, things are dropping orders of magnitude in performance. > This issue finds optimal traversal gemm kernel order for current matrix; or > rewrites matrix prior to operation to enable optimal traversals. > PR https://github.com/apache/mahout/pull/135 -- This message was sent by Atlassian JIRA (v6.3.4#6332)