[mvapich-discuss] osu_bw, osu_bibw hang

Uday K Bondhugula udayreddy at gmail.com
Wed Feb 29 15:50:03 EST 2012


Hello,

I have MVAPICH2 1.8a1. With osu-micro-benchmarks 3.5.1, I find that the 
osu bidirectional and unidirectional bandwidth tests hang. The latency 
test runs fine.

$ mpirun_rsh -np 2 -host hosts osu_latency
# Size            Latency (us)
0                         3.87
1                         3.94
2                         3.95
4                         3.95
8                         3.95


$ mpirun_rsh -np 2 -host hosts osu_bibw
# OSU MPI Bi-Directional Bandwidth Test v3.5.1
# Size     Bi-Bandwidth (MB/s)


Each node runs Linux 2.6.x (x86-64). MT25204 [InfiniHost III Lx HCA] 
(rev 20) is the InfiniBand adapter. mpicc is set to use ICC 11.1. Any 
help will be appreciated.

Thanks,
Uday



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