Gravity_init(integer(IN) :: myPE)
Initialize unit scope variables in the Gravity unit, which are typically the runtime parameters. This routine must be called once by Driver_initFlash.F90. Calling multiple times will not cause any harm but is unnecessary.
myPE - local processor number
useGravity BOOLEAN true Controls turning on/off the compiled gravity unit
Each implementation of Gravity has its own runtime parameters. Be sure to check the documentation or Config files to see them.