: Re: [OMPI users] ssh between nodes
On 02/29/2012 04:51 PM, Martin Siegert wrote:
> Hi,
>
> On Wed, Feb 29, 2012 at 09:09:27PM +, Denver Smith wrote:
>>Hello,
>>On my cluster running moab and torque, I cannot ssh without a password
>>between compute n
On 02/29/2012 04:51 PM, Martin Siegert wrote:
> Hi,
>
> On Wed, Feb 29, 2012 at 09:09:27PM +, Denver Smith wrote:
>>Hello,
>>On my cluster running moab and torque, I cannot ssh without a password
>>between compute nodes. I can however request multiple node jobs fine. I
>>was wo
Hi,
On Wed, Feb 29, 2012 at 09:09:27PM +, Denver Smith wrote:
>
>Hello,
>On my cluster running moab and torque, I cannot ssh without a password
>between compute nodes. I can however request multiple node jobs fine. I
>was wondering if passwordless ssh keys need to be set up be
It really depends. You certainly CAN have mpirun/mpiexec use ssh to
launch the remote processes. If you're using Torque, though, I strongly
recommend using the hooks in OpenMPI, into the Torque TM-API (see
http://www.open-mpi.org/faq/?category=building#build-rte-tm). That will
use the pbs_mom's
Depends on which launcher you are using. My understanding is that you can
use torque to launch the MPI processes on remote nodes, but you must
compile this support into OpenMPI. Please, someone correct me if I am
wrong.
For most clusters I work with and manage, we use passwordless keys. The
rea
Hello,
On my cluster running moab and torque, I cannot ssh without a password between
compute nodes. I can however request multiple node jobs fine. I was wondering
if passwordless ssh keys need to be set up between compute nodes in order for
mpi applications to run correctly.
Thanks
