Hi, I have a small hostfile with the following two lines.
tyr.informatik.hs-fulda.de slots=2 sunpc4.informatik.hs-fulda.de slots=2 I get the following output from a small program when I set my environment for openmpi-1.6. tyr small_prog 106 mpiexec -hostfile hosts.openmpi_fulda -np 2 universe number of processes: 2 universe size: 4 When I do the same for the last tarball of openmpi-1.9 I get the following output so that "universe size" doesn't show the number of available processors any longer. tyr small_prog 108 mpiexec -hostfile hosts.openmpi_fulda -np 2 universe number of processes: 2 universe size: 2 Have you changed the implementation so that this is intended? Thank you very much for any answer in advance. Kind regards Siegmar
