[mpich-discuss] machinefile error

[SULLIVAN David (AREVA)]

Ok. Attempting to use Hydra yields the following error:
 
[mcnp5_1-4 at node1 ~]$ mpiexec.hydra -f nodes -n 12 mcnp5.mpi i=aw04
o=mpi.te
The authenticity of host 'node1 (155.55.55.5)' can't be established.
RSA key fingerprint is 28:bd:96:b9:2c:3f:05:cc:ca:67:f6:35:70:77:17:06.
Are you sure you want to continue connecting (yes/no)? [proxy at node2]
HYDU_sock_connect (./utils/sock/sock.c:141): [proxy at node3] connect error
(No route to host)
[proxy at node2] main (./pm/pmiserv/pmi_proxy.c:108): unable to connect to
the main server
HYDU_sock_connect (./utils/sock/sock.c:141): connect error (No route to
host)
[proxy at node3] main (./pm/pmiserv/pmi_proxy.c:108): unable to connect to
the main server

Host key verification failed.
[mcnp5_1-4 at node1 ~]$

There is very little in the user's guide on Hydra, so I am at your mercy
for any information.

Thanks for the help-

Dave

-----Original Message-----
From: mpich-discuss-bounces at mcs.anl.gov
[mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Pavan Balaji
Sent: Wednesday, July 21, 2010 1:23 PM
To: mpich-discuss at mcs.anl.gov
Subject: Re: [mpich-discuss] machinefile error


On 07/20/2010 10:56 AM, SULLIVAN David (AREVA) wrote:
> If I explicitly call mpiexec.hydra I get all sorts of problems, but I 
> think it has to do with how the nodes are set up. On advice from 
> debianclusters.org I entered the command mpd --daemon --ncpus=4. Next 
> to see where this is running I enter mpdtrace -l. The response is
> node1_12345 (127.0.0.1). That ip address doesn't look like it will
work.

What problems are you having with Hydra? There are usage instructions on
MPD in the MPICH2 user's guide (on our website), but I suggest you try
Hydra first.

  -- Pavan

--
Pavan Balaji
http://www.mcs.anl.gov/~balaji
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