IPC prototype between MPI process and controller
Some fixes for working on physical clusters
Fixed crush issue on real environment
Disabled connection counting
Changed link cost to simple hop length
Removed unused test scripts
Changed trema listening port to 6633
Ignore Ethernet broadcast address
Disabled debug output
Added IP address notification after MPI_Init
Removed unused method `Topology#cost`
Added begin_mpi_send message parser
Path reservation prototype
Added dynamic path reservation
Fixed bug that sshd won't be killed after experiment
Added balancing of connections
Merge branch 'try-path-reservation'