Rocks: Openmpi - Rocks 5.4 vs Rocks 5.4.3

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Openmpi Rocks 5.4 vs Rocks 5.4.3

"""Note:""" 

For some reasons, OpenMPI from Rocks 5.4.3 distro looks for infiniband network by default. So without
"--mca btl ^udapl,openib --mca btl_tcp_if_include eth0", it will looks for inifiniband network and
the just will hang as it waiting for the infiniband netrwork to be come available.

Could be a bug from this distribution !!!
  • Rocks 5.4
mpirun -np 2 -machinefile ./machines -npernode 12 ./IMB-MPI1 PingPong
  • Rocks 5.4.3
mpirun --mca btl ^udapl,openib --mca btl_tcp_if_include eth0 -np 624 -machinefile ./machines -npernode 12  ./xhpl
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