| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multiprocessor, capable of efficiently assigning a plurality of parallelizable tasks to processor units (PU), and enhancing the execution efficiency of the whole system in view of performance and power by executing a task which affects the total execution time at high speed and executing a task which does not affect the total execution time at low speed from the viewpoint of power efficiency. <P>SOLUTION: The compiler which divides an input program into a plurality of tasks MT0-MT3 and assigns the tasks to a plurality of PUs (PU0 and PU1) comprises a process for performing the task assignment so as to minimize the total execution time; a power control process for temporarily improving the frequency of a processor executing a task which affects the entire performance; and a power control process for temporarily reducing the frequency of a processor executing a task which does not affect the entire performance. Consequently, processing can be efficiently performed with low power while utilizing the performance of a multiprocessor system to the maximum. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
