Re: [OMPI users] Two remote machines - asymmetric behavior

2009-08-05 Thread David Doria
On Mon, Aug 3, 2009 at 1:41 PM, Ralph Castain wrote: > The only thing that changes is the required connectivity. It sounds to me > like you may have a firewall issue here, where cloud3 is blocking > connectivity from cloud6, but cloud6 is allowing connectivity from cloud3. > >

Re: [OMPI users] Two remote machines - asymmetric behavior

2009-08-03 Thread Ralph Castain
The only thing that changes is the required connectivity. It sounds to me like you may have a firewall issue here, where cloud3 is blocking connectivity from cloud6, but cloud6 is allowing connectivity from cloud3. Is there a firewall in operation, per chance? Ralph On Mon, Aug 3, 2009 at 11:08

Re: [OMPI users] Two remote machines - asymmetric behavior

2009-08-03 Thread David Doria
On Mon, Aug 3, 2009 at 9:47 AM, Ralph Castain wrote: > You are both correct. If you simply type "mpirun pvserver", then we will > execute pvserver on whatever machine is local. > > However, if you type "mpirun -n 1 -H host1 pvserver", then we will start > pvserver on the

Re: [OMPI users] Two remote machines - asymmetric behavior

2009-08-03 Thread Ralph Castain
You are both correct. If you simply type "mpirun pvserver", then we will execute pvserver on whatever machine is local. However, if you type "mpirun -n 1 -H host1 pvserver", then we will start pvserver on the specified host. Note that mpirun will still be executing on your local machine - but

Re: [OMPI users] Two remote machines - asymmetric behavior

2009-08-03 Thread David Doria
> I'm a newbie, so forgive me if I ask something stupid: > > why are You running ssh command before mpirun command? I'm interested in > setting up a paraview server on a LAN to pos-tprocess OpenFOAM > simulation data. > > Just a total newbish comment: doesn't the mpirun in fact call for the > ssh

Re: [OMPI users] Two remote machines - asymmetric behavior

2009-08-03 Thread Tomislav Maric
David Doria wrote: > I have three machines: mine (daviddoria) and two identical remote > machines (cloud3 and cloud6). I can password-less ssh between any pair. > The machines are all 32bit running Fedora 11. OpenMPI was installed > identically on each. The .bashrc is identical on each. /etc/hosts

[OMPI users] Two remote machines - asymmetric behavior

2009-08-03 Thread David Doria
I have three machines: mine (daviddoria) and two identical remote machines (cloud3 and cloud6). I can password-less ssh between any pair. The machines are all 32bit running Fedora 11. OpenMPI was installed identically on each. The .bashrc is identical on each. /etc/hosts is identical on each. I