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https://issues.apache.org/jira/browse/HAMA-511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13486823#comment-13486823
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Suraj Menon commented on HAMA-511:
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HAMA-639 and HAMA-652 should be 50% of work. For HAMA-652, I have implemented
the scenario when selective synchronizations are to be done on pre-determined
synchronization points before execution. It gets a little tricky when the
synchronizations points (or even the members) to sync are to be determined
during the execution. HAMA-639 API could be finalized once code for HAMA-652 is
finalized.
The next issue is when a task who is at superstep (say number 10) receives
messages from a remote peer for a distant superstep ( say anything more than 11
in this case ). I think we would need to change the send protocol to handle
this case. Also, we would need BSPJobClient to provide input splits for
multiple superstep chains.
> Submitting heterogenous supersteps with precedence constraints on Hama
> ----------------------------------------------------------------------
>
> Key: HAMA-511
> URL: https://issues.apache.org/jira/browse/HAMA-511
> Project: Hama
> Issue Type: New Feature
> Reporter: Suraj Menon
> Priority: Minor
> Attachments: Defining supersteps for BSP.pdf
>
>
> Hama should support submission of jobs with support for:
> 1) Skipping unwanted superstep synchronization.
> 2) Run supersteps with heterogenous nature of computation
> 3) Scheduling supersteps with precedence constraints.
> An explanation of these is provided in the attachment.
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