def gomc_simulation_started(job, control_filename_str):
    """General check to see if the gomc simulation is started."""
    output_started_bool = False
    if job.isfile("out_{}.dat".format(control_filename_str)) and job.isfile(
        "{}_merged.psf".format(control_filename_str)
    ):
        output_started_bool = True

    return output_started_bool