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From Yuesheng Hu <yueshen...@gmail.com>
Subject Re: Some questions about execution workflow of HamaGraph.
Date Wed, 19 Sep 2012 08:09:10 GMT
org.apache.hama.graph.GraphJobRunner is the most important class in should
read, also  other classes in org.apache.hama.graph


2012/9/19 顾荣 <gurongwalker@gmail.com>

> Hi All,I have some questions about your design in HamaGraph. Let me take
> the PageRank example to illustrate my questions.
>
> I have 3 Groom Servers each with 3 free BSP task nodes in my Hama
> cluster.The input file is as blow.
>
> "stackoverflow.com    yahoo.com
> facebook.com    twitter.com    google.com    nasa.gov
> yahoo.com    nasa.gov    stackoverflow.com
> twitter.com    google.com    facebook.com
> nasa.gov    yahoo.com    stackoverflow.com
> youtube.com    google.com    yahoo.com
> "
> In this case, there are 6 vertexs. How do you assign them among these task
> nodes? Can it guarantee load balancing? And, Do you support a function to
> supply to customize their own vertex assignment policy? I am so confused
> with the tasks split part of Hama, it seems the same as Hadoop (by input
> splits) from its source code, but it works different. And does the task
> split part of HamaBSP is the same as HamaGraph?
>
> Would you please give some info about that? If you are busy to answer my
> questions, please kindly point it out to me that in which classes or
> functions of source code you implemented what I am confused about, I think
> I read it more myself.
>
> Anyway,Thanks again.
>
> Walker
>

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