Invention Grant
US08452991B2 Partition level power management using fully asynchronous cores with software that has limited asynchronous support
有权
使用具有有限异步支持的软件的完全异步核心的分区级电源管理
- Patent Title: Partition level power management using fully asynchronous cores with software that has limited asynchronous support
- Patent Title (中): 使用具有有限异步支持的软件的完全异步核心的分区级电源管理
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Application No.: US12544541Application Date: 2009-08-20
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Publication No.: US08452991B2Publication Date: 2013-05-28
- Inventor: Andrew Geissler , Raymond J. Harrington , Hye-Young McCreary , Freeman Leigh Rawson, III , Malcolm Scott Ware
- Applicant: Andrew Geissler , Raymond J. Harrington , Hye-Young McCreary , Freeman Leigh Rawson, III , Malcolm Scott Ware
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: VanLeeuwen & VanLeeuwen
- Agent Libby Z. Toub
- Main IPC: G06F1/00
- IPC: G06F1/00

Abstract:
A partition that is executed by multiple processing nodes. Each node includes multiple cores and each of the cores has a frequency that can be set. A first frequency range is provided to the cores. Each core, when executing the identified partition, sets its frequency within the first frequency range. Frequency metrics are gathered from the cores running the partition by the nodes. The gathered frequency metrics are received and analyzed by a hypervisor that determines a second frequency range to use for the partition, with the second frequency range being different from the first frequency range. The second frequency range is provided to the cores at the nodes executing the identified partition. When the cores execute the identified partition, they use a frequencies within the second frequency range.
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