Mayank,

Which graph do you use as input? Are you using https://github.com/boostorg/graph/blob/master/test/weighted_graph.gr ? This graph is probably just too small to benefit from additional processes. Could you try some input that runs for at least few seconds on a single process?

-m

On Tue, Jul 14, 2015 at 9:36 AM Mayank Bakshi <mayank.bakshi@tcs.com> wrote:
I want to utilize boost MPI to increase performance of graph code. When I run standard examples in libs/graph_parallel/examples/, bfs does not give better performance with more than 1 process taken in mpirun (using openmpi 1.8.3). The timing is as follows:

No of Processes          Time (ms)

1                                  40.80
2                                  82.19
4                                  92.67
8                                  76.86
16                                91.61

Any suggestions to improve the performance with processes as graph parallel should use more ranks for better performance.






 


Thanks & Regards
Mayank Bakshi
Tata Consultancy Services Limited
Cell:- 7083955990
Mailto: mayank.bakshi@tcs.com
Website: http://www.tcs.com
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