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From Jyoti Yadav <>
Subject Re: Running an algo for selected no of vertices..
Date Sat, 04 Jan 2014 15:17:37 GMT
Thanks Peter for your reply.
I want to explain more about my problem..
Suppose I want to implement SingleSourceShortestPath algo for some vertices.
Then how i will proceed??How I will change Source_id once algo is completed
for one vertex?


On Sat, Jan 4, 2014 at 7:56 PM, Peter Grman <> wrote:

> Yes, you know which vertex you are and in which step you are, so if you
> implement it correctly you can run during the first superstep some
> computations on vertex(2) and in the second superstep on vertex(5)
> You could simply ignore your compute function in the first superstep on
> all vertices except vertex2 and in the end send out messages to those
> vertices which should continue with the computation. You could also run
> your compute function on only one vertex in each superstep, but then I'm
> not quite sure why you would want to use giraph.
> cheers
> Peter
> On Sat, Jan 4, 2014 at 3:04 PM, Jyoti Yadav <>wrote:
>> Hi folks..
>> I am trying to implement some graph algorithm .I want compute function to
>> run for some selected number of vertices.
>> For eg.
>> first compute function run for vertex id=2,when its work is
>> completed,then i want to run compute function for vertex id =5.
>> Is it possible in giraph???
>> Any ideas??
>> With Regards
>> Jyoti

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