"Rob Malpass" <l...@getiton.myzen.co.uk> writes: > Almost in desperation, I cheated:
Why is that cheating? Unless you specifically want a different version, it seems sensible to me, especially as you then have access to packaged versions of at least some MPI programs. Likewise with rpm-based systems, which I'm afraid I know more about. Also the package system ensures that things don't break by inadvertently removing their dependencies; the hwloc libraries might be an example. > 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. No. As I said recently, Debian installs a default MPI (via the alternatives system) with libraries in the system search path. Check the library contents.
