Multiprocessor control apparatus, control method thereof, and integrated circuit

A multiprocessor control method used in a multiprocessor control apparatus for controlling a processor to, when processors other than the processor have ended respective operations performed in parallel, start performing an operation that uses a result of the operations, the multiprocessor control method comprising:

• a power restriction step of restricting power supply to the processor;
• a cancellation step of canceling the power-supply restriction before one of the other processors, which is the last of all the other processors to end a corresponding operation, ends the corresponding operation;
• and
• an execution control step of controlling the processor to, when the other processors have ended the respective operations performed in parallel, start performing the operation that uses the result of the operations.

An integrated circuit for controlling a multiprocessor, the integrated circuit comprising:

• an execution control unit operable to control a processor to, when processors other than the processor have ended respective operations performed in parallel, start performing an operation that uses a result of the operations;
• and
• a power control unit operable to control power supply to the processor, wherein
• when the processor has been under power-supply restriction, the power control unit cancels the power-supply restriction before one of the other processors, which is the last of all the other processors to end a corresponding operation, ends the corresponding operation.