Re: VertexUpdateFunction

[Martin Junghanns <m....@mailbox.org>]

Hi Ali,

If you're talking about a Java Map and the constructor of your compute 
function, then your implementation is not really scalable.

Cheers,

Martin


On 31.05.2017 14:19, rostami@informatik.uni-leipzig.de wrote:
> Hi Martin,
>
> thanks for your answer..
> For the vertex degree, I passed a map (vertex_id -> degree) to the 
> constructor.
>
> Regards,
> Ali
>
> Zitat von Martin Junghanns <m....@mailbox.org>:
>
>> Hi Ali :)
>>
>> You could compute the degrees beforehand (e.g. using the 
>> Graph.[in|out|get]degrees()) methods and use the resulting dataset as 
>> a new vertex dataset. You can now run your vertex-centric computation 
>> and access the degrees as vertex value.
>>
>> Cheers,
>>
>> Martin
>>
>>
>> On 29.05.2017 09:28, rostami@informatik.uni-leipzig.de wrote:
>>> Hi,
>>>
>>> I want to write an iterative algorithm using Gelly (spargel), like:
>>>
>>> https://ci.apache.org/projects/flink/flink-docs-release-0.8/spargel_guide.html 
>>> My question is how I can access the actual vertex information like 
>>> the vertex degree (in- or outdegree)
>>> under the subclass of VertexUpdateFunction. A way is maybe to send 
>>> an instance of graph to the constructor.
>>> However, getting the degree for a vertex in each instance of this 
>>> subclass would be really inefficient.
>>>
>>> Thanks,
>>> Ali
>>>
>
>
>