Re: [mpgraph-developers] Problem with increasing the no of iterations in pagerank

[ashutosh r. <ash...@gm...>]

Thanks James Lewis and Bryan Thomson, it worked after making changed in
Pagerank.h file

Ashutosh

On Sat, Jul 4, 2015 at 9:17 PM, James Lewis <jl...@sy...> wrote:

> If you want to increase the accuracy of the result, you want to change the
> value used to consider an element changed. This is found in the apply
> struct defined in PageRank.h:
>
> if (fabs(oldvalue - newvalue) < 0.01f)
>         changed = 0;
>
> Changing the 0.01f to a lower value will increase the accuracy of the
> result, and require more iterations to converge. You may also need to
> specify a higher value for iter_num so that it won't terminate before it
> converges.
>
> Cheers,
>
> James
>
> ________________
> James Lewis
> CUDA Researcher
> Systap LLC
> jl...@sy...
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> On Sat, Jul 4, 2015 at 7:27 AM, ashutosh raghuvanshi <
> ash...@gm...> wrote:
>
>>  Hello, I am working on a research on to taking graph processing and
>> graph database processing on to GPGPU ans I am using Mapgraph against other
>> applicatons on multicore CPU and CPU clustures.
>>
>> I need help in the proccess.
>>
>> If i run Pagerank on soc-livejournal1 dataset it completes in 60
>> iterations but if I want to run it for more number of times then what to do?
>> -p iter_num=50 (any no. less than 60) works but -p iter_num=70 (any no.
>> greater than 60 doesn't work)
>>
>> even tol=0.1 is only for checking...that also doesn't go for more
>> accurate results.
>>
>> so please help ASAP.
>>
>>
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