Hi You also must make sure that all slaves can connect via ssh to each other and to the master node without ssh.
Jody On Wed, Dec 21, 2011 at 3:57 AM, Shaandar Nyamtulga <nyam...@hotmail.com> wrote: > Can you clarify your answer please. > I have one master node and other slave nodes. I created rsa key on my master > node and copied it to all slaves. > /home/mpiuser directory of all nodes are shared through NFS.The strange > thing is why it requires password after I mount a slave and do ssh to the > slave. > When I dismount I can ssh without password. > > > ________________________________ > Date: Tue, 20 Dec 2011 10:45:12 +0100 > From: mathieu.westp...@obs.ujf-grenoble.fr > To: us...@open-mpi.org > Subject: Re: [OMPI users] Passwordless ssh > > > Hello > > You have to copy nodeX public key at the end of nodeY authorizedkeys. > > > Mathieu > Le 20/12/2011 05:03, Shaandar Nyamtulga a écrit : > > Hi > I built Beuwolf cluster using OpenMPI reading the following link. > http://techtinkering.com/2009/12/02/setting-up-a-beowulf-cluster-using-open-mpi-on-linux/ > I can access my nodes without password before mounting my slaves. > But when I mount my slaves and run a program, it asks again passwords. > > $ eval `ssh-agent` > > $ ssh-add ~/.ssh/id_dsa > > The above is not working. Terminal gives the reply "Could not open a > connection to your authentication agent." > > Help is needed urgently. > > Thank you > > > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > > > > _______________________________________________ users mailing list > us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
