I verified that the preload functionality works on the trunk. It seems
to be broken on the v1.3/v1.4 branches. The version of this code has
changed significantly between the v1.3/v1.4 and the trunk/v1.5
versions. I filed a bug about this so it does not get lost:
Now that I have passwordless-ssh set up both directions, and verified
working - I still have the same problem.
I'm able to run ssh/scp on both master and client nodes - (at this
point, they are pretty much the same), without being asked for password.
And mpirun works fine if I have the
Though the --preload-binary option was created while building the
checkpoint/restart functionality it does not depend on checkpoint/restart
function in any way (just a side effect of the initial development).
The problem you are seeing is a result of the computing environment setup of
I'm no expert on the preload-binary option - but I would suspect that
is the case given your observations.
That option was created to support checkpoint/restart, not for what
you are attempting to do. Like I said, you -should- be able to use it
for that purpose, but I expect you may hit a
Thank you very much for your help! I believe I do have password-less ssh
set up, at least from master node to client node (desktop -> laptop in
my case). If I type >ssh node1 on my desktop terminal, I am able to get
to the laptop node without being asked for password. And as I mentioned,
if I
It -should- work, but you need password-less ssh setup. See our FAQ
for how to do that, if you are unfamiliar with it.
On Nov 10, 2009, at 2:02 PM, Qing Pang wrote:
I'm having problem getting the mpirun "preload-binary" option to work.
I'm using ubutu8.10 with openmpi 1.3.3, nodes
I'm having problem getting the mpirun "preload-binary" option to work.
I'm using ubutu8.10 with openmpi 1.3.3, nodes connected with Ethernet cable.
If I copy the executable to client nodes using scp, then do mpirun,
everything works.
But I really want to avoid the copying, so I tried the
