p Reinitialization test

$ simdag/network/test_reinit_costs ${srcdir:=.}/simdag/network/platform_2p_1sl.xml --surf-path=${srcdir} --log=sd_kernel.thres=warning
> [0.000000] [surf_workstation/INFO] surf_workstation_model_init_ptask_L07
> 0
> [0.000000] [surf_workstation/INFO] surf_workstation_model_init_ptask_L07
> 1.5