It is the F-2M but I think for inter-node communication should be equivalents. I have not run and MPI pingpong benchmark yet.
The truth is I have a 10 days travel coming next week and I thought I can take some optimization "light reading" with me. so I know what I must look for when I came back. Ricardo On Fri, Mar 20, 2009 at 5:10 PM, Scott Atchley <atch...@myri.com> wrote: > On Mar 20, 2009, at 11:33 AM, Ricardo Fernández-Perea wrote: > > This are the results initially >> Running 1000 iterations. >> Length Latency(us) Bandwidth(MB/s) >> 0 2.738 0.000 >> 1 2.718 0.368 >> 2 2.707 0.739 >> <snip> >> 1048576 4392.217 238.735 >> 2097152 8705.028 240.913 >> 4194304 17359.166 241.619 >> >> with export MX_RCACHE=1 >> >> Running 1000 iterations. >> Length Latency(us) Bandwidth(MB/s) >> 0 2.731 0.000 >> 1 2.705 0.370 >> 2 2.719 0.736 >> <snip> >> 1048576 4265.846 245.807 >> 2097152 8491.122 246.982 >> 4194304 16953.997 247.393 >> > > Ricardo, > > I am assuming that these are PCI-X NICs. Given the latency and bandwidth, > are these "D" model NICs (see the top of the mx_info output)? If so, that > looks about as good as you can expect. > > Have you run Intel MPI Benchmark (IMB) or another MPI pingpong type > benchmark? > > Scott > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
