[mpich-discuss] MPI_Recv crashes with mpd ring

James Dinan dinan at mcs.anl.gov
Wed Feb 16 10:42:43 CST 2011


Ssh-keyscan is definitely the better/more secure option.  You can also 
silence these messages by setting:

Host *
StrictHostKeyChecking no

in your ssh config file.  This tells ssh to ignore the known_hosts file.

  ~Jim.

On 2/16/11 9:23 AM, Bill Rankin wrote:
> Basically, ssh does not have the public host keys for the remote hosts
> and it is asking you for them. Look at the manual page for “ssh-keyscan”
> for more information.
>
> Hope this helps,
>
> -b
>
> *From:*mpich-discuss-bounces at mcs.anl.gov
> [mailto:mpich-discuss-bounces at mcs.anl.gov] *On Behalf Of *Jain, Rohit
> *Sent:* Tuesday, February 15, 2011 6:53 PM
> *To:* mpich-discuss at mcs.anl.gov
> *Subject:* Re: [mpich-discuss] MPI_Recv crashes with mpd ring
>
> Hi Dave,
>
>
>
> I had 1.2.1p1 built locally. So, I tried that. It also gave me same fatal error. I will try newer version, but I am less hopeful.
>
>
>
>
>
> 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.
>
>
>
> Any pointers how to resolve them?
>
>
>
> Regards,
>
> Rohit
>
>
>
>
>
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