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Subject: Re: [OMPI users] ssh MPi and program tests
From: Marco (redshift_at_[hidden])
Date: 2009-04-08 04:28:08


* Francesco Pietra <chiendarret_at_[hidden]> [2009 04 06, 16:51]:
> cd cytosine && ./Run.cytosine
> The authenticity of host deb64 (which is the hostname) (127.0.1.1)
> can't be established.
> RSA fingerprint .....
> connecting ?

 This is a warning from ssh, not from OpenMPI; probably it is the first
time the system tries to connect to itself, and is asking you a
confirmation to continue.

 Please note that 127.0.1.1 seems quite strange to me, since the
'standard' ip for localhost is '127.0.0.1'. You may want to check your
/etc/hosts .

> I stopped the ssh daemon, whereby tests were interrupted because deb64
> (i.e., itself) could no more be accessed.

 I'm afraid it wasn't a great idea... the ssh daemon is required to
receive connections to localhost; and since mpi wants to do just that,
stopping sshd won't really fix the issue ;)