p par task comp only, no comm, homogeneous

$ simdag/partask/test_comp_only_par ${srcdir:=.}/simdag/partask/platform_2p_1sl.xml --surf-path=${srcdir} --log=sd_kernel.thres=warning
> [0.000000] [surf_workstation/INFO] surf_workstation_model_init_ptask_L07
> 1

p par task comp only, no comm, heterogeneous

$ simdag/partask/test_comp_only_par ${srcdir:=.}/simdag/partask/platform_2p_1sl_hetero.xml --surf-path=${srcdir} --log=sd_kernel.thres=warning
> [0.000000] [surf_workstation/INFO] surf_workstation_model_init_ptask_L07
> 1