JOB EXECUTION MULTIPLICITY CONTROL METHOD

Herein disclosed is a job execution multiplicity controlling method, in which the used time periods of the central unit and the input/output device of at least one processor, respectively, are periodically measured for the respective jobs being executed in parallel in that processor, in which whether the present workload upon that processor is reasonable or not is judged in accordance with that measurement result, and in which a subsequent new job execution is started in that processor when that workload is lower.