[mpich-discuss] how to make the hosts files

[Reuti]

Am 11.05.2011 um 17:59 schrieb Mandar Gurav:

> I hope, you have your /etc/hosts file having entry of the host2 with
> actual IP address of the host2 on host1 machine? and same for host2?

Or a firewall in the way?

Anyway, besides a passphrase-less ssh login you could also set up a  
hostbased-authentication:

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

-- Reuti


> One more doubt.... did you setup passwordless login among the two  
> hosts?
>
> Check if it succeeds for host1 to host2 and the other way.
>
> -- Mandar Gurav
>
> On 5/11/11, Nicolas Rosner <nrosner at gmail.com> wrote:
>>> [root at francium examples]# mpiexec -n 10 -machinefile
>>> /usr/local/mpich2/machine/hosts ./cpi
>>> ssh: connect to host host1 port 22: Connection timed out
>>> ssh: connect to host host2 port 22: Connection timed out
>>> I don't know what is wrong?
>>
>> Looks like a connectivity issue. Your hosts file is being found now,
>> but it seems there's some problem connecting to the hostnames listed
>> therein. Please ensure you are able to manually ssh to those hosts
>> from francium. If successful manual ssh requires a different hostname
>> (e.g. if "ssh host1.cluster.lab" works but "ssh host1" doesn't), you
>> may want to update your hosts file to reflect that.
>>
>> N.
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>>
>
>
> -- 
> Mandar Gurav
> http://www.mandargurav.org
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