Dmitriy Lyubimov created MAHOUT-1724:
----------------------------------------
Summary: 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
