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From "Dhruv Mahajan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (REEF-1404) IMRU task state Maintenance and Preservation in Evaluator for fault tolerant
Date Tue, 20 Sep 2016 23:06:20 GMT

    [ https://issues.apache.org/jira/browse/REEF-1404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15508088#comment-15508088
] 

Dhruv Mahajan commented on REEF-1404:
-------------------------------------

{quote}
Whatever we save should be the one that will be supplied as input for the next iteration,
right?
{quote}

No. For LBFGS for example, input will be a model and gradient vector while output will be
the full history of model and gradient updates.

{quote}
Also if the API singanature is T, it is up to the implementation to define T as a class which
can contains both types as you described above.
{quote}

I did not quite get that. you will still need a signature like IStateManager<T1,T2>
right?

> IMRU task state Maintenance and Preservation in Evaluator for fault tolerant
> ----------------------------------------------------------------------------
>
>                 Key: REEF-1404
>                 URL: https://issues.apache.org/jira/browse/REEF-1404
>             Project: REEF
>          Issue Type: Task
>            Reporter: Julia
>              Labels: FT
>
> IMRU task should be able to 
> * Maintenance and preservation the state
> * When restart, able to recover from the previous sate



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