On Tue, Apr 07, 2009 at 09:10:21AM -0700, Eugene Loh wrote: > Steve Kargl wrote: > > >I can rebuild 1.2.9 and 1.3.1. Is there any particular configure > >options that I should enable/disable? > > I hope someone else will chime in here, because I'm somewhat out of > ideas. All I'm saying is that 10-usec latencies on sm with 1.3.0 or > 1.3.1 are out of line with what other people see and I don't think it's > simply a 1.2.9/1.3.0 issue here. I'm stumped.
With 1.3.2 pre-release, I ran /usr/local/openmpi-1.3.2/bin/mpiexec --mca btl sm,self \ --mca mpi_show_mca_params all -machinefile mf_ompi_2 -n 2 ./z | & tee sgk.log I've placed a file with the output from '--mca mpi_show_mca_params all' at http://troutmask.apl.washington.edu/~kargl/mca_all_params.txt Perhaps, someone with more knowledge of the parameters can take a quick look. I do observe [node20.cimu.org:90002] btl_sm_bandwidth=900 (default value) [node20.cimu.org:90002] btl_sm_latency=100 (default value) Are these values tunable? -- Steve
