Github user mengxr commented on the pull request:
https://github.com/apache/spark/pull/1975#issuecomment-52378348
@jkbradley There are couple `math.pow(2, ..)` calls in the implementation.
We can use `<<` instead, which is faster than `math.pow`. As mentioned in the
comments, if we use 1-indexing for nodes, the index calculation will be much
simpler. But I'm not sure about whether this is an easy change.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
