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Subject: Re: [OMPI devel] complete newbie question regarding --enable-mpi-profile option
From: Leo P. (leo_7892003_at_[hidden])
Date: 2009-06-15 13:18:14


HI Nik, I tried the Sun Studio Performance Analyzer and it was able to profile to application but not the openMPI source code. The source code was empty in Sun Studio Performance Analyzer. I tried but i was not able to get the profiling information of openMPI. So i installed Vampir trace and i was able to get otf while suggested i got the profiling information. But i fail to understand what i should do now. 1. Am i suppose to download additional information for trace information visualization? Is the additional software this https://www.ssl-id.net/www.vampir.eu/index.html 2. If not how can i visualize the trace information i got vampir-trace. Sorry for bugging everyone so much about this. But i spend a lot of time and this alone and i am not getting output. Leo P. ________________________________ From: Nikolay Molchanov <Nikolay.Molchanov_at_[hidden]> To: leo_7892003_at_[hidden] Cc: Open MPI Developers <devel_at_[hidden]> Sent: Monday, 15 June, 2009 12:18:50 PM Subject: Re: [OMPI devel] complete newbie question regarding --enable-mpi-profile option Hi Leo, If you want to get the profiling information, you can try Sun Studio Performance Analyzer. You can download SS12.1 EA release - here is a pointer to the web page: http://developers.sun.com/sunstudio/downloads/express/index.jsp Final version will be available soon, but EA should be good enough to try :-) I suggest you to download EA as a tar file, extract it, set PATH, and run the following commands: $ collect -M OPENMPI mpirun -np 2 -- hello Note: it is necessary to add "--" after mpirun arguments. This command will create a "test.1.er" directory (experiment). To view the experiment, run "analyzer" (Java GUI tool): $ analyzer test.1.er If everything works properly you will see MPI Timeline and other tabs, that show profiling information. Please, make sure you have java 1.5 or newer in your PATH. Thanks, Nik Leo P. wrote: Also i was wondering whether gdb could be used with openMPI. I know about -d option in mpirun but i need to use gdb if its possible. I think i have done all the necessary things to enable profiling and debuging but i am missing something here. Sorry guys i forgot i could debug shared library function in gdb. :) So currently using $ mpirun -np 1 xterm -e gdb hello to debug the openMPI source. If only i could get the profiling information, it could help me a lot. Leo :) ________________________________ From: Leo P. <leo_7892003_at_[hidden]> To: Open MPI Developers <devel_at_[hidden]> Sent: Monday, 15 June, 2009 12:36:34 AM Subject: [OMPI devel] complete newbie question regarding --enable-mpi-profile option Hi Everyone, I have been trying to enabling profiling of openMPI code. Earlier i also saw a thread [http://www.open-mpi.org/community/lists/users/2008/04/5369.php] which talks about using --enable-mpi-profile option in configure which i have done. But i have not been able to get hold of profiling data. I tried installing vampir from https://computing.llnl.gov/code/vgv.html#installations but i am not been able to install. So i wanted to know how people are profiling the core openMPI code. I am a complete newbie and would appreciate any information. Also i was wondering whether gdb could be used with openMPI. I know about -d option in mpirun but i need to use gdb if its possible. I think i have done all the necessary things to enable profiling and debuging but i am missing something here. Currentl y i am configuring openMPI using following param ./configure -enable-debug --with-devel-headers --enable-trace --enable-mpi-profile --enable-mem-debug Leo P. ________________________________ Explore and discover exciting holidays and getaways with Yahoo! India Travel Click here! ________________________________ Bollywood news, movie reviews, film trailers and more! Click here. ________________________________ _______________________________________________ devel mailing list devel_at_[hidden] http://www.open-mpi.org/mailman/listinfo.cgi/devel Own a website.Get an unlimited package.Pay next to nothing.*Go to http://in.business.yahoo.com/