We use OpenMPI and Lam MPI on some xen boxs, (RHEL4 images) with no
issues.
I dont know why it would work on the one domU and not the others.
Brock Palen
Center for Advanced Computing
brockp@umich.edu
(734)936-1985
On Feb 22, 2007, at 9:05 PM, Bhatia, Nikhil wrote:
> Hello Xen-o-Enthusiasts,
>
>
>
> I am trying to use MPICH2-1.0.5 on Xen-3.0.3 dom-Us that have been
> fired using FC-5 images. Now, I will try to explain a bit about my
> setup. I have 3 domUs
>
>
>
> 192.168.37.50 : vcl050
>
> 192.168.37.51 : vcn051
>
> 192.168.37.52 : vcn052
>
>
>
> All domUs have exactly same images. I have built and installed
> mpich2-1.0.5 on FC-5 and installed it in a shared directory
> (accessible by all DOM-Us). I installed it by logging as
> bhatia@192.168.37.50 (and not root). Now, when I start mpd on
> 192.168.37.50 like this:
>
>
>
> bhatia@192.168.37.50:> mpd –daemon
>
> bhatia@192.168.37.50:> mpdtrace
>
> 192
>
> bhatia@192.168.37.50:> mpiexec -np 1 /bin/hostname
>
> 192.168.37.50
>
>
>
> So, everything works fine up till now. Now the problem is that when
> I try to follow the same steps on a different DOM-U (i.e. vcn051),
> I get the following:
>
>
>
> bhatia@192.168.37.51:> mpd --daemon
>
> bhatia@192.168.37.51:> mpdtrace
>
> mpdtrace (mpdtrace 57): got eof on console
>
> bhatia@192.168.37.51:> mpdtrace
>
> mpdtrace (mpdtrace 57): got eof on console
>
> bhatia@192.168.37.51:> mpdtrace
>
> bhatia@192.168.37.51:> mpdtrace
>
> 192
> --------------------------à eventually mpd gets started
> successfully
>
> bhatia@192.168.37.51:> mpiexec -np 1 /bin/hostname
>
> mpiexec_192.168.37.51 (mpiexec 375): no msg recvd from mpd when
> expecting ack of request
> -------------------------------------à BREAKS here
>
>
>
>
>
> Same is the story with another DOM-U (i.e. vcn052) where I try to
> start mpd as root:
>
>
>
> [root@192 ~]# mpd --daemon
>
> [root@192 ~]# mpdtrace
>
> mpdtrace (mpdtrace 57): got eof on console
>
> [root@192 ~]# mpdtrace
>
> [root@192 ~]# mpdtrace
>
> 192
>
> [root@192 ~]# mpiexec -np 1 /bin/hostname
>
> mpiexec_192.168.37.52 (mpiexec 365): no msg recvd from mpd when
> expecting ack of request
>
>
>
> Can you see the problem here? Did any of you also face similar
> problems?
>
>
>
> Thanks,
>
> Nikhil
>
>
>
>
>
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