I have implemented some algorithms in C++ which are greatly affected by
shuffling time among nodes which is done by some broadcast calls. Up to
now, I have been testing them by running something like
mpirun -mca btl ^openib -mca plm_rsh_no_tree_spawn 1 ./my_test
which I think make MPI_Bcast to wo
Yes, it looks like you are mixing multiple versions of Open MPI.
It looks like you have installed Open MPI v1.10.0 via RPM in the system
defaults location (perhaps in /usr/bin and /usr/lib and the like?), and then
installed Open MPI v2.1.1 via building from source under your home directory
(/ho
