[MPICH] mpich2 program hangs

[Darius Buntinas]

It looks like the mpds can communicate, but the cpi processes can't.  Do 
you have a firewall and did you have to do anything special to get mpd 
to work with it?

-d

On 08/02/2007 04:23 AM, si ceng wrote:
> Dear all:
> I installed mpich2-1.0.5p4 on two machines and tried the example cpi.
> the two machines are machine1 and machine2.
> I can run ssh/rsh without password on both machines.
> 
> when I only use one machine for computation, it returned good result.
> 
> when I use two machines,
> 
> my mpd.hosts is:
> machine1
> machine2
> 
> I ran mpdboot -n 2 -f mpd.hosts
> 
> I ran mpdtrace, the output is :
> machine1
> machine2
> 
> when I ran mpiexec -n 5 examples/cpi:
> the output is
> Process 0 of 5 is on machine1
> Process 2 of 5 is on machine2
> Process 4 of 5 is on machine1
> Process 3 of 5 is on machine2
> Process 1 of 5 is on machine2
> 
> then the program stop there and no output then.
> Can anyone help?
> 
> thanks
> 
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