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    • 3. 发明授权
    • Dynamic frequency and voltage scaling for a computer processor
    • 计算机处理器的动态频率和电压缩放
    • US08127160B2
    • 2012-02-28
    • US12250263
    • 2008-10-13
    • Andreas BieswangerAndrew GeisslerHye-Young McCrearyFreeman L. RawsonMalcolm S. Ware
    • Andreas BieswangerAndrew GeisslerHye-Young McCrearyFreeman L. RawsonMalcolm S. Ware
    • G06F1/32
    • G06F1/3203G06F1/324G06F1/3296Y02D10/126Y02D10/172
    • Dynamic frequency and voltage scaling for a computer processor, including retrieving information specifying a nominal operating point of frequency and voltage and an operating range of frequency and voltage for the processor; creating, by the power management module dynamically at run time in dependence upon the retrieved information, a table of frequency, voltage pairs, each pair specifying an operating point of frequency and voltage for the processor, each pair disposed upon a line drawn in frequency-voltage space through the nominal operating point between the minimum operating point and the maximum operating point, the distance between each pair defined in dependence upon a minimum change in power supply voltage supported by the power supply; and selecting and applying, by the power management module from the table, an operating voltage and frequency for the processor in dependence upon current operating conditions of the processor.
    • 用于计算机处理器的动态频率和电压缩放,包括检索指定频率和电压的标称工作点的信息以及处理器的频率和电压的操作范围; 通过电源管理模块在运行时根据检索到的信息动态地创建频率表,电压对,每对指定处理器的频率和电压的工作点的每一对,每对设置在以频率为单位绘制的线上, 通过最小工作点和最大工作点之间的标称工作点的电压空间,每对之间的距离根据电源支持的电源电压的最小变化而定义; 以及根据所述处理器的当前操作条件,由所述电源管理模块从所述表中选择和应用所述处理器的工作电压和频率。
    • 4. 发明授权
    • Power management for processing capacity upgrade on demand
    • 电源管理按需处理能力升级
    • US08627128B2
    • 2014-01-07
    • US12942475
    • 2010-11-09
    • Andreas BieswangerAndrew J. GeisslerHye-Young McCrearyFreeman L. RawsonMalcolm S. Ware
    • Andreas BieswangerAndrew J. GeisslerHye-Young McCrearyFreeman L. RawsonMalcolm S. Ware
    • G06F1/00
    • G06F1/324G06F1/3206Y02D10/126
    • A method, computer program product, and apparatus for managing power in a data processing system are presented. A core is activated in the data processing system and configured to operate at a frequency in response to receiving a request to increase a processing capacity of a set of resources in the data processing system. A determination whether a use of power resulting from activating the core configured to operate at the frequency meets a policy for the use of the power in the data processing system is made. A set of parameters associated with devices in the set of resources are adjusted to meet the policy for the use of power in the data processing system in response to a determination that the use of power does not meet the policy. A determination whether a number of operations performed per unit of time by a set of cores associated with the set of resources increased after activating the core is made. An indication that the request to increase the processing capacity of the set of resources is unavailable is made in response to a determination that the number of operations performed per unit of time by the set of cores associated with the set of resources has not increased.
    • 提出了一种在数据处理系统中管理电源的方法,计算机程序产品和装置。 核心在数据处理系统中被激活并且被配置为响应于接收到增加数据处理系统中的一组资源的处理能力的请求而以频率操作。 确定是否使用由配置为在频率上操作的核心而产生的功率满足在数据处理系统中使用电力的策略。 调整与资源集合中的设备相关联的一组参数以响应于确定使用电力不符合策略的数据处理系统中的电力使用策略。 确定在激活核心之后,通过与资源集相关联的一组核心,每单位时间执行的操作数量是否增加。 响应于通过与该资源集相关联的一组核心单位时间执行的操作数量没有增加来确定增加资源集合的处理能力的请求不可用的指示。