| 摘要 |
PROBLEM TO BE SOLVED: To reduce dead waiting time due to waiting for an event of a process in a job in the job to perform calculation by plural processes. SOLUTION: When a generation factor of waiting for the event to be requested by the process in a certain job exists in except the job for a scheduler to switch processes by unit of job, the job is preferentially switched over to a job to be the generation factor. In addition, when the job waits for the event for execution of a collective function, switching of the jobs is instructed to the scheduler. Furthermore, a processor to execute the collective function is separated from a processor to execute the next job in multi-processor environment. Thus, the useless waiting time for the event is eliminated and processor use rate of all jobs are enhanced by switching the jobs. In addition, the lowering of parallelization efficiency of the jobs is prevented by selectively using the processors.
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