Re: [OMPI users] Measuring latency
Hello, Intel MPI Benchmarks suite (http://software.intel.com/en-us/articles/intel-mpi-benchmarks/) will probably measure more things about your MPI environment than you'd ever need to know :) NetPIPE (http://www.scl.ameslab.gov/netpipe/) also has an MPI version. It measures point-to-point bandwidth and latency and has the option to test the effect of using unaligned memory buffers. Kind regards, Hristo On 21.08.2012, at 23:32, Maginot Junior wrote: > Hello. > How do you suggest me to measure the latency between master em slaves > in my cluster? Is there any tool that I can use to test the > performance of my environment? > Thanks > > > -- > Maginot Júnior > > ___ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Hristo Iliev, Ph.D. -- High Performance Computing, RWTH Aachen University, Center for Computing and Communication Seffenter Weg 23, D 52074 Aachen (Germany) smime.p7s Description: S/MIME cryptographic signature
Re: [OMPI users] Measuring latency
That's fine. In that case, you just compile it with your MPI implementation and do something like this: mpiexec -np 2 -H masterhostname,slavehostname ./osu_latency There may be some all-to-all latency tools too. I don't really remember. Lloyd Brown Systems Administrator Fulton Supercomputing Lab Brigham Young University http://marylou.byu.edu On 08/21/2012 03:41 PM, Maginot Junior wrote: > Sorry for the type, what I meant was "and" not "em". > Thank you for the quick response, I will take a look at your suggestion
Re: [OMPI users] Measuring latency
On Tue, Aug 21, 2012 at 6:34 PM, Lloyd Brown wrote: > I'm not really familiar enough to know what you mean by "em slaves", but > for general testing of bandwidth and latency, I usually use the "OSU > Micro-benchmarks" (see http://mvapich.cse.ohio-state.edu/benchmarks/). > > Lloyd Brown > Systems Administrator > Fulton Supercomputing Lab > Brigham Young University > http://marylou.byu.edu > > On 08/21/2012 03:32 PM, Maginot Junior wrote: >> Hello. >> How do you suggest me to measure the latency between master em slaves >> in my cluster? Is there any tool that I can use to test the >> performance of my environment? >> Thanks >> >> >> -- >> Maginot Júnior >> >> ___ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> > ___ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users Sorry for the type, what I meant was "and" not "em". Thank you for the quick response, I will take a look at your suggestion regards -- Maginot Jr.
Re: [OMPI users] Measuring latency
I'm not really familiar enough to know what you mean by "em slaves", but for general testing of bandwidth and latency, I usually use the "OSU Micro-benchmarks" (see http://mvapich.cse.ohio-state.edu/benchmarks/). Lloyd Brown Systems Administrator Fulton Supercomputing Lab Brigham Young University http://marylou.byu.edu On 08/21/2012 03:32 PM, Maginot Junior wrote: > Hello. > How do you suggest me to measure the latency between master em slaves > in my cluster? Is there any tool that I can use to test the > performance of my environment? > Thanks > > > -- > Maginot Júnior > > ___ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
[OMPI users] Measuring latency
Hello. How do you suggest me to measure the latency between master em slaves in my cluster? Is there any tool that I can use to test the performance of my environment? Thanks -- Maginot Júnior
