Function tvm::function::ffi::TVMBackendParallelBarrier

pub unsafe extern "C" fn TVMBackendParallelBarrier(
    task_id: i32, 
    penv: *mut TVMParallelGroupEnv
) -> i32

\brief BSP barrrier between parallel threads \param task_id the task id of the function. \param penv The parallel environment backs the execution. \return 0 when no error is thrown, -1 when failure happens