2013 Fiscal Year Final Research Report
A Study of Heat-Spreading-Aware Processor
| Project/Area Number |
24700044
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Computer system/Network
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MIWA Shinobu 東京大学, 情報理工学(系)研究科, 助教 (90402940)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Keywords | マイクロプロセッサ / アーキテクチャ / 熱 / ターボ・モード / アクティビティ・マイグレーション |
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| Research Abstract |
Performance of modern microprocessors is often constrained by the chip temperature. Therefore, we studied a method to reduce chip temperature for performance improvement of microprocessors. We focused on Turbo Mode, which is widely used in modern microprocessors. Our technique is to use Activity Migration for upgrading the maximum CPU frequency during Turbo Mode. We developed a method to apply Activity Migration to a microprocessor with spatial fine granularity and its design methodology. We evaluated our technique with the combination of some simulators. The result shows that our technique achieves 14.5% of performance improvement in exchange for 2.8% of area increase.
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