Function xgboost_sys::RabitBroadcast

pub unsafe extern "C" fn RabitBroadcast(
    sendrecv_data: *mut c_void,
    size: rbt_ulong,
    root: c_int
)

\brief broadcast an memory region to all others from root

Example: int a = 1; Broadcast(&a, sizeof(a), root); \param sendrecv_data the pointer to send or recive buffer, \param size the size of the data \param root the root of process