> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Kozin, I (Igor)
> The Network-Based Computing Laboratory at the Ohio State > University used to host a number of benchmarking programs > including the latency test. > Unfortunately I do not have the link. http://mvapich.cse.ohio-state.edu/benchmarks/ I believe that these OSU MPI benchmarks together with the IMB (Intel MPI Benchmarks, formerly Pallas) are the most commonly used ping-pong (= latency) tests that people use for MPI. > I found that > PathScale's link checker (derived from an OSU benchmark) is > very handy. Perhaps you can find the link in the archive. PathScale's InfiniBand/MPI technology is now part of QLogic. >From the Archive: cse.ucdavis.edu/~bill/mpi_nxnlatbw.c Redistribution and use in source and binary forms, with or without ... Redistributions in binary form must reproduce the above copyright notice, this ... http://cse.ucdavis.edu/~bill/mpi_nxnlatbw.c [#1 on Yahoo!] Info about this program is available in the QLogic InfiniPath 2.1 User Guide: http://download.qlogic.com/manual/62612/IB6054601-00E.pdf mpi_nxnlatbw is run as part of the ipath_checkout tool (p. C-38) that checks whether all parts of the network are installed correctly and performing as expected. Or it can be run separatly. -Tom > Also check the archive on the issues with measuring latency. > Best, > Igor > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Carsten Aulbert > Sent: 20 September 2007 12:12 > To: Beowulf Mailing List > Subject: [Beowulf] Measuring port to port latency > > Hi, > > since the rush of emails seems to be over right now, I would > like to start another thread. How are you measuring port to > port latency in your network easily? > > So far, I have found a small MPI-pingpong code at > > http://cluster.fisica.unam.mx/curso/mpi_intro/para_pingpong.html > > as well as netpipe at > > http://www.scl.ameslab.gov/Projects/Netpipe/ > > They look fine on their own, but since I'm just starting, any > opinions? > > Cheers > > Carsten > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org To change your > subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org To change your > subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf > _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
