p Test smpi bindings for dvfs functions (C example)
$ ../../../smpi_script/bin/smpirun -np 2 -hostfile ${srcdir:=.}/hostfile  -platform ${srcdir:=.}/platform.xml --cfg=smpi/cpu_threshold:-1 ${bindir:=.}/se
> [0.000000] [xbt_cfg/INFO] Configuration change: Set 'maxmin/precision' to '1e-9'
> [0.000000] [xbt_cfg/INFO] Configuration change: Set 'network/model' to 'SMPI'
> [0.000000] [xbt_cfg/INFO] Configuration change: Set 'network/TCP_gamma' to '4194304'
> [0.000000] [xbt_cfg/INFO] Configuration change: Set 'smpi/cpu_threshold' to '-1'
> [0.000000] [surf_config/INFO] Switching workstation model to compound since you changed the network and/or cpu model(s)
> [0.000000] [rank 1] Pstates: 1; Powers: 100000000
> [0.000000] [rank 0] Pstates: 3; Powers: 100000000, 50000000, 20000000
> [0.000000] [rank 1] Current pstate: 0; Current power: 100000000
> [0.000000] [rank 0] Current pstate: 0; Current power: 100000000
> [10.000000] [rank 1] Energy consumed: 2000 Joules.
> [10.000000] [rank 0] Energy consumed: 2000 Joules.
> [10.000000] [rank 0] Current pstate: 1; Current power: 50000000
> [30.000000] [rank 0] Energy consumed: 5400 Joules.
> [30.000000] [rank 0] Current pstate: 2; Current power: 20000000
> [80.000000] [rank 0] Energy consumed: 12900 Joules.
