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https://issues.apache.org/jira/browse/HAMA-588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13294212#comment-13294212
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Edward J. Yoon commented on HAMA-588:
-------------------------------------
Memo to me:
- Add voteToHalt() method to VertexInterface.
- Add protected boolean field 'votedToHalt' to be able to check whether voted
to halt.
- Finally, calls the compute() method for all vertices that have not voted to
halt or received new messages.
> Add voteToHalt() mechanism in Graph API
> ---------------------------------------
>
> Key: HAMA-588
> URL: https://issues.apache.org/jira/browse/HAMA-588
> Project: Hama
> Issue Type: Improvement
> Components: graph
> Affects Versions: 0.5.0
> Reporter: Apurv Verma
> Assignee: Edward J. Yoon
>
> Currently Graph API is such that when a vertex doesn't receive any messages,
> compute() is not called upon it.
> One way to change it is let the user decide when the algorithm has to stop.
> For this we need to add a voteToHalt() function with each vertex.
> And maintain a state variable with each vertex. A vertex which has
> votedToHalt() doesn't send messages in the next superstep. However if it
> receives any message, its voteToHalt() ends and it is again eligible to send
> messages.
> When all vertices have votedToHalt() algorithm should end.
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