tested big data
Merge branch 'master' of github.com:acumartini/distributed_systems
mpi
Merge branch 'master' of github.com:acumartini/distributed_systems
mpi
Merge branch 'master' of github.com:acumartini/distributed_systems
Merge branch 'master' of github.com:acumartini/distributed_systems
Merge branch 'master' of github.com:acumartini/distributed_systems
Merge branch 'master' of github.com:acumartini/distributed_systems
Merge branch 'master' of github.com:acumartini/distributed_systems
Merge branch 'master' of github.com:acumartini/distributed_systems
Merge branch 'master' of github.com:acumartini/distributed_systems
mpi to mac