Hi all
I posted about a fortnight ago to this list as I was having some trouble getting my nodes to be controlled by my master node. Perceived wisdom at the time was to compile with the -enable-orterun-prefix-by-default. For some time I'd been getting cannot open libopen-rte.so.7 which points to a problem with LD_LIBRARY_PATH. I had been able to run it on nodes 3 and 4 even though (from headnode) if I do ssh node4 'echo $LD_LIBRARY_PATH' returns a blank line. However - as I say it's working on nodes 3 and 4. I had been hacking for ages on nodes 1 and 2 getting the same error but still with LD_LIBRARY_PATH apparently not set for an interactive login. Almost in desperation, I cheated: sudo apt-get install openmpi-bin and hey presto. I can now do (from head node) mpirun -H node2,node3,node4 -n 10 foo and it works fine. So clearly apt-get install has set something that I'd not done (and it's seemingly not LD_LIBRARY_PATH) as ssh node2 'echo $LD_LIBRARY_PATH' still returns a blank line. Can anyone tell me what might be in the install script so I can get a clue? Thanks
