We've looked at performance in detail with regard to OpenMPI Java for large scale real data analytics. Here's a paper still in submission that identifies 5 rules you'd find useful to get good performance. It talks about how the number of processes affect performance as well. Tests were done up 3072 cores on a large Intel Haswell HPC cluster
https://www.researchgate.net/publication/291695527_SPIDAL_Java_High_Performance_Data_Analytics_with_Java_and_MPI_on_Large_Multicore_HPC_Clusters Thank you, Saliya On Sun, Jan 24, 2016 at 9:41 AM, Nick Papior <nickpap...@gmail.com> wrote: > *All* codes scale differently. > So you should do these tests with your own code, and not a different code > (such as MM). > > > 2016-01-24 15:38 GMT+01:00 Ibrahim Ikhlawi <ibrahim_...@hotmail.com>: > >> >> >> Hallo, >> >> I am working on a server and run java codes with OpenMPI. I want to know >> which number of process is the fastest to run my code with? >> For this reason I wrote a code that multiply two matrices but the >> differences between the results is not significant. >> >> Therefore I want to know how can I benchmark my server? Or is there any >> example which I can run many times on a different number of processes, so >> that I can see which number of process is the best? >> >> Or is there examples with results which I can compare with my results? >> >> Thanx in advance >> Ibrahim >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users >> Link to this post: >> http://www.open-mpi.org/community/lists/users/2016/01/28352.php >> > > > > -- > Kind regards Nick > > _______________________________________________ > users mailing list > us...@open-mpi.org > Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users > Link to this post: > http://www.open-mpi.org/community/lists/users/2016/01/28353.php > -- Saliya Ekanayake Ph.D. Candidate | Research Assistant School of Informatics and Computing | Digital Science Center Indiana University, Bloomington Cell 812-391-4914 http://saliya.org
