发明授权
US06901521B2 Dynamic hardware control for energy management systems using task attributes
有权
使用任务属性的能量管理系统的动态硬件控制
- 专利标题: Dynamic hardware control for energy management systems using task attributes
- 专利标题(中): 使用任务属性的能量管理系统的动态硬件控制
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申请号: US09932137申请日: 2001-08-17
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公开(公告)号: US06901521B2公开(公告)日: 2005-05-31
- 发明人: Gerard Chauvel , Dominique D'Inverno
- 申请人: Gerard Chauvel , Dominique D'Inverno
- 申请人地址: US TX Dallas
- 专利权人: Texas Instruments Incorporated
- 当前专利权人: Texas Instruments Incorporated
- 当前专利权人地址: US TX Dallas
- 代理商 Robert D. Marshall, Jr.; W. James Brady, III; Frederick J. Telecky, Jr.
- 优先权: EP00402331 20000821; EP00402945 20001024
- 主分类号: G06F1/20
- IPC分类号: G06F1/20 ; G06F1/32 ; G06F9/312 ; G06F11/34 ; G06F12/02 ; G06F12/08 ; G06F12/10 ; G06F1/26
摘要:
A multiprocessor system (10) includes a plurality of processing modules, such as MPUs (12), DSPs (14), and coprocessors/DMA channels (16). Power management software (38) in conjunction with profiles (36) for the various processing modules and the tasks to executed are used to build scenarios which meet predetermined power objectives, such as providing maximum operation within package thermal constraints or using minimum energy. Actual activities associated with the tasks are monitored during operation to ensure compatibility with the objectives. The allocation of tasks may be changed dynamically to accommodate changes in environmental conditions and changes in the task list. As each task in a scenario is executed, a control word associated with the task can be used to enable/disable circuitry, or to set circuits to an optimum configuration.