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From "Edward J. Yoon" <edwardy...@apache.org>
Subject Re: setNumBspTask - implications
Date Fri, 23 Aug 2013 10:09:09 GMT
The number of partitions is equal to the number of tasks. You might
not able to improve job performance by increasing tasks number on
single machine. It is like a lot of cooks in the bistro.

On Fri, Aug 23, 2013 at 6:17 PM, Mahesh Babu <jmbabu@gmail.com> wrote:
> Hi,
> I am running some SSSP routines in pseudo distributed mode now. However,
> time taken to compute minDist is increasing when increasing NumBspTask. And
> it reduces when I reduce this site configuration.
> I wanted to understand this API a bit more : i.e. BSPJob.setNumBspTasks()
>    can somebody help me understand this..
>    does it relate to number of threads or does it any way influence number
> of partitions
>    and the reason why my time measurements are so.
> Also is there any other configuration/property that I can try to improve
> the speed of SSSP ?
> Regards,
> Mahesh Babu

Best Regards, Edward J. Yoon

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