[
https://issues.apache.org/jira/browse/SYSTEMML-2319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16477836#comment-16477836
]
Matthias Boehm commented on SYSTEMML-2319:
------------------------------------------
The list of hops in the statement block is not the list of all hops but just
the list of root nodes (i.e., outputs) of the DAG. All other hops are reachable
by traversing the DAG from the root nodes. Since it's a DAG this traversal
should generally use memoization to remember already processed operators, which
is important to avoid redundant processing if nodes are reachable over multiple
paths.
> IPA integration
> ---------------
>
> Key: SYSTEMML-2319
> URL: https://issues.apache.org/jira/browse/SYSTEMML-2319
> Project: SystemML
> Issue Type: Sub-task
> Reporter: LI Guobao
> Assignee: LI Guobao
> Priority: Major
>
> It aims to extend the IPA to avoid removing the referenced functions due to
> the fact that the paramserv function is a second-order function.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
