[mpich-discuss] MPI_Recv crashes with mpd ring

[Pavan Balaji]

Rohit,

On 02/15/2011 05:52 PM, Jain, Rohit wrote:
> I am trying to use hydra (mpiexec.hydra) with 1.2.1.p1, but getting some startup errors:
>
> The authenticity of host‘XXX' can't be established.
> RSA key fingerprint is ed:ce:ca:7b:08:b9:49:fd:f6:af:14.
> Are you sure you want to continue connecting (yes/no)?
> The authenticity of host‘XXX2' can't be established.
> RSA key fingerprint is fb:1b:7b:0c:bb:b1:a6:b1:7d:dc:05.

Try ssh'ing to the hosts first, and make sure ssh is correctly setup for 
passwordless access.

You can google for "passwordless ssh setup" for more information on this.

  -- Pavan

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