[MPICH] MPICH Hangs

[Nasr Y.M.J.O.]

Dear All,

I have just setup a small cluster (1 master + 7 compute nodes ) using MPICH 
1.2.7 that is bundled with NPACI Rocks 4.1. I have downloaded the NetPIPE 
benchmark to test MPICH but the test hangs at packet size 2 bytes only! I 
did the same test with TCP and its running fine. Meanwhile, I tried to run 
the chemistry program NWChem (built with tcgmsg-mpi) and Im facing the same 
problem. When I ran the HPL benchmark I didnt have any problem with the 
mpich. Im using GigE interconnect, linux kernel 2.6.9.

Any help is greatly appreciated.
Thanks

Nasr

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