2021 Fiscal Year Final Research Report
Computer power efficiency improvement by adaptive power control using processor performance counter
| Project/Area Number |
19K24356
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Multi-year Fund |
|---|
| Review Section |
1001:Information science, computer engineering, and related fields
|
|---|
| Research Institution | Kanagawa Institute of Technology |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2019-08-30 – 2022-03-31
|
| Keywords | プロセッサ電源 / 省電力化 / 性能計測 / 電力推定 / 適応制御 / デジタルフィルタ |
|---|
| Outline of Final Research Achievements |
Processors of computers in operation tend to be light load due to such as data waiting. It is required to improve the efficiency of processor power supplies by optimal efficiency control according to the processor power load condition including the light workload. To resolve this issue, a processor power load estimation method for purpose of power supply control was considered. This study showed power estimation method by IIR digital filter based on the information output by processor's performance measurement circuit is effective.
To enable to estimate the power load with high accuracy using the performance measurement information, it is necessary to set optimal parameters for the application to be executed in the processor. This study also showed online parameter determination methods to enable the precise power estimation for the executed application. It was confirmed that power loss can be reduced by applying these power estimation methods to power supply control.
|
| Free Research Field |
パワーエレクトロニクス
|
| Academic Significance and Societal Importance of the Research Achievements |
脱炭素社会実現に向け情報システムの省電力化は極めて重要な課題である。IoT(Internet of Things)、スマートフォン、サーバなどの情報機器が消費する電力は今後益々増加が予想され、これら計算機システムの省電力化が強く求められている。
本研究の成果は、計算機システム内で電力を供給する電源における電力損失を削減するための省電力化手法の実現に向け必要となる技術を確立するものとなる。
|
