On Mar 21, 2005, at 8:07 PM, Lefevre Jerome wrote:

Yes, with export LAMRSH='ssh -x' , all is right. I will rebuild my Lam-ifort with this flag. Many thanks for your tip.

Actually, this is a run-time flag, not a build-time flag. To have LAM use "ssh -x" by default, you can specify the configure flag "--with-rsh='ssh -x'" in the specifile when you build your RPM.


Now, if i run "qsub mpihello.pbs", $PBS_NODEFILE list only 2 nodes.
         node3.cluster.ird.nc
         node2.cluster.ird.nc

Even if i place in my PBS script the flag "N" after mpirun.

This is another configure flag in LAM -- you need to tell LAM where to find the PBS / Torque libraries so that it can interface directly with the queueing system. Specifically, when built with PBS / Torque support, the lamboot command will query PBS / Torque directly to get the list of nodes to use. Without this, lamboot will always require a hostfile to specify the list of nodes to use (e.g., $PBS_NODEFILE or any other hostfile). The configure option that you want is --with-tm=<directory>, where <directory> is the directory where PBS or Torque was installed (e.g., /opt/pbs).


So to build the LAM RPM with these options, add the following to the configure line in your specfile:

--with-rsh='ssh -x' --with-pbs=/opt/pbs

(assuming your PBS/Torque installation is in /opt/pbs)

--
{+} Jeff Squyres
{+} [EMAIL PROTECTED]
{+} http://www.lam-mpi.org/



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