PROCESSOR, MULTIPROCESSOR SYSTEM, PROCESSOR SYSTEM, INFORMATION PROCESSING DEVICE, AND TEMPERATURE CONTROL METHOD

摘要

An instruction decoder (14) specifies a computing block and a heat generation coefficient concerning execution of an each instruction and stores them in a heat generation coefficient profile (20). An instruction scheduler (16) schedules instructions depending on the data dependence relation. A heat generation frequency adder (32) cumulatively adds the heat generation coefficient to the heat generation frequency of the relevant computing block held in a computing block heat generation frequency register (22) in accordance with the progress of the scheduled instructions. A heat generation frequency subtracter (34) subtracts the heat generation frequency of each computing block of the computing block heat generation frequency register (22) on the basis of the amount of heat radiated with time passage. Hot spot detector (36) detects, as a hot spot, a computing block where the heat generation frequency of the computing block heat generation frequency register (22) exceeds a predetermined threshold. The instruction scheduler (16) delays the execution of the instruction which the computing block judged as a hot spot executes.