On master, it looks like there's somehow some default hwloc debugging information enabled by default.
For example: ----- $ hostname mpi002 $ mpirun hostname hwloc verbose debug enabled, may be disabled with HWLOC_DEBUG_VERBOSE=0 in the environment. CPU phase discovery... CPU phase discovery in component linux... hwloc verbose debug enabled, may be disabled with HWLOC_DEBUG_VERBOSE=0 in the environment. ...lots of hwloc output snipped... PCI(busid=0000:89:07.6 id=1137:00cf class=0200(Ethernet) link=8.00GB/s) PCI(busid=0000:89:07.7 id=1137:00cf class=0200(Ethernet) link=8.00GB/s) PCI(busid=0000:89:08.0 id=1137:00cf class=0200(Ethernet) link=8.00GB/s) Propagate total memory up mpi002 $ ----- I don't know exactly where to go look for this in the code base. Can someone point me where to fix this? Thanks! -- Jeff Squyres jsquy...@cisco.com