[
https://issues.apache.org/jira/browse/MAHOUT-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13918358#comment-13918358
]
Adam Ilardi commented on MAHOUT-1429:
-------------------------------------
Nothing formal. Anecdotally my total runtime has gone way done 2-3 days to <
one day. I noticed that it would be stuck on one core for a very long time
which led me to this code. I run the model with ~9 million items.
> Parallelize YtransposeY in ImplicitFeedbackAlternatingLeastSquaresSolver
> ------------------------------------------------------------------------
>
> Key: MAHOUT-1429
> URL: https://issues.apache.org/jira/browse/MAHOUT-1429
> Project: Mahout
> Issue Type: Improvement
> Components: Collaborative Filtering
> Affects Versions: 0.9
> Reporter: Adam Ilardi
> Priority: Minor
> Labels: newbie, patch, performance
> Attachments: MAHOUT-1429.patch
>
>
> I wrote a simple patch to do the calculation in parallel. It could be better
> but it gets the job done. Is there some other (Matrix transpose dot matrix)
> code in mahout that is already parallel? I will reuse that if it exists.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
