christinadionysio commented on PR #1955: URL: https://github.com/apache/systemds/pull/1955#issuecomment-1845535349
> how much faster is it? @Baunsgaard I only tested the `t(X) %*% X` operation on ultra sparse matrices locally for now. Using the germany_osm dataset we achieve a runtime of ~12s after the optimisation. (It is infeasible to run it locally without the optimisation, since a dense matrix is allocated and therefore a Java heap space exception occurs.) When I run the operation on an ultra sparse matrix with 30000 rows and cols I get a speedup of 17x or 30x depending on which of the two methods is used. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@systemds.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
