I have a question about using OpenMPI and Torque on stateless nodes.
I have compiled openmpi 1.4.3 with --with-tm=/usr/local
--without-slurm using intel compiler version 11.1.075.
When I run a simple "hello world" mpi program, I am receiving the
following error.
[node164:11193] plm:tm: failed to poll for a spawned daemon, return
status = 17002
--------------------------------------------------------------------------
A daemon (pid unknown) died unexpectedly on signal 1 while attempting to
launch so we are aborting.
There may be more information reported by the environment (see above).
This may be because the daemon was unable to find all the needed shared
libraries on the remote node. You may set your LD_LIBRARY_PATH to have the
location of the shared libraries on the remote nodes and this will
automatically be forwarded to the remote nodes.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpiexec noticed that the job aborted, but has no info as to the process
that caused that situation.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpiexec was unable to cleanly terminate the daemons on the nodes shown
below. Additional manual cleanup may be required - please refer to
the "orte-clean" tool for assistance.
--------------------------------------------------------------------------
node163 - daemon did not report back when launched
node159 - daemon did not report back when launched
node158 - daemon did not report back when launched
node157 - daemon did not report back when launched
node156 - daemon did not report back when launched
node155 - daemon did not report back when launched
node154 - daemon did not report back when launched
node152 - daemon did not report back when launched
node151 - daemon did not report back when launched
node150 - daemon did not report back when launched
node149 - daemon did not report back when launched
But if I include:
-mca plm rsh
The job runs just fine.
I am not sure what the problem is with torque or openmpi that prevents
the process from launching on remote nodes. I have posted to the
torque list and someone suggested that it may be temporary directory
space that can be causing issues. I have 100MB allocated to /tmp
Any ideas as to why I am having this problem would be appreciated.
--
Randall Svancara
http://knowyourlinux.com/
