Issue while launching binary executable:px4

I am trying to run the binary executable under: '~/build/px4_sitl_default/bin/px4`

But it is always starting SIH and not “INFO [init] jMAVSim simulator”.

I have observed if I have executed this “make px4_sitl jmavsim” and then trying to execute the above binaries, then open SITL, but if I have executed, “make px4_sitl sihsim_quadx” before, then it opens SIH mode.

Can you tell me how can I have a better control over this?