[mpich-discuss] MPI_Recv crashes with mpd ring

[Reuti]

Am 16.02.2011 um 01:01 schrieb 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.

Another option might be hostbased authentication: no (passphraseless) ssh-keys for each user to set up, and the known_hosts file won't grow for them:

http://arc.liv.ac.uk/SGE/howto/hostbased-ssh.html

-- Reuti


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