A computer produces a first schedule of jobs including ongoing jobs and pending jobs which is to cause a plurality of computing resources to execute the pending jobs while preventing suspension of the ongoing jobs running on the computing resources. The computer also produces a second schedule of the jobs which allows the ongoing jobs to be suspended and rescheduled to cause the computing resources to execute the suspended jobs and pending jobs. Based on the produced first and second schedules, the computer calculates an advantage factor representing advantages to be obtained by suspending jobs, as well as a loss factor representing losses to be caused by suspending jobs. The computer chooses either the first schedule or the second schedule, based on a comparison between the advantage factor and loss factor.