Routability-driven power gating switch sizing with fast IR-drop prediction고속 전압 강하 예측을 통한 파워게이팅 스위치 크기 결정 및 배선 가능성 향상

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Power gating switch cells (PGC) are inserted to cut the supply current from the power sources to the circuits that are not in use. PGCs are allocated larger sizes to prevent IR-drop violations during floorplanning. After placement, PGCs are resized to reduce the unnecessarily large size, which acts as a routing blockage. The challenge is the significant runtime required to verify IRdrop constraints whenever PGC sizes are changed. Our approach consists of two components: (1) fast IR-drop prediction using ML models and (2) routability-driven heuristic algorithm to optimize PGC sizes. Experimental results demonstrate that the predicted IR-drop closely aligns with the reference, with a mean absolute percentage error (MAPE) of $2.9%$. The proposed algorithm successfully removes all routing design rule check violations (DRV), including those that could not be addressed by previous methods.
Advisors
신영수researcher
Description
한국과학기술원 :전기및전자공학부,
Publisher
한국과학기술원
Issue Date
2024
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학부, 2024.2,[iii, 24 p. :]

Keywords

파워게이팅▼a스위치 크기 결정▼a전압 강하 예측; Power gating▼aSwitch sizing▼aIR-drop prediction

URI
http://hdl.handle.net/10203/321662
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=1097240&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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