Description of problem:
I am running RedHat Enterprise Linux AS4U2 on my XeonLV cluster. In order to 
run my parallel job, I installed MPICH-1.2.5.2, certainly, I have installed 
ypserv, ypbind, nfs, rsh, etc.

The problem is when I startup a parallel job just like `mpirun -np 16 -
machinefile myhosts mpihelloworld', ypserv complains:

[compute1] /home/kartwall/testcode > /usr/local/mpich/bin/mpirun -np 16 -
machinefile hostfile hello
o_ypcall: clnt_call: RPC: Timed out
p0_18235:  p4_error: Child process exited while making connection to remote 
process on compute2: 0

I know that in ypserv-2.13-9 version, this is a ypserv bug and it can be fixed 
if we downgrade ypserv to ypserv-2.13-5. But my ypserv is ypserv-2.13-5 now. 
Another interesting thing is that the error message above is "o_ypcall" while 
not "do_ypcall". 

I have tried to upgrade my ypserv to `ypserv-2.13-11' but it doesn't work 
still.

I think that maybe ypserv doesn't support XeonLV now. I have found a lot of 
softwares on my XeonLV platform don't work correctly. And on my another 
cluster which is based on Xeon, ypserv-2.13-5 works well.

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