Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET Technologies

IR-drop is a fundamental constraint by almost all integrated circuits (ICs) physical designs, and many iterations of timing engineer change order (ECO), IR-drop ECO, or other ECO are needed before design signoff. However, IR-drop analysis usually takes a long time and wastes so many resources. In th...

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Main Authors: Pengcheng Huang, Chiyuan Ma, Zhenyu Wu
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/13/10/1807
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author Pengcheng Huang
Chiyuan Ma
Zhenyu Wu
author_facet Pengcheng Huang
Chiyuan Ma
Zhenyu Wu
author_sort Pengcheng Huang
collection DOAJ
description IR-drop is a fundamental constraint by almost all integrated circuits (ICs) physical designs, and many iterations of timing engineer change order (ECO), IR-drop ECO, or other ECO are needed before design signoff. However, IR-drop analysis usually takes a long time and wastes so many resources. In this work, we develop a fast dynamic IR-drop predictor based on a machine learning technique, XGBoost, and the prediction method can be applied to vector-based and vectorless IR-drop analysis simultaneously. Correlation coefficient is often used to characterize the symmetry of prediction data and golden data, and our experiments show that the prediction correlation coefficient is more than 0.96 and the average error is no more than 1.3 mV for two industry designs, which are of 2.4 million and 3.7 million instances, respectively, and that the analysis is speeded up over 4.3 times compared with the IR-drop analysis by commercial tool, Redhawk.
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spelling doaj.art-a12dcdd4415f4d3db03342da8e0d699f2023-11-22T20:09:24ZengMDPI AGSymmetry2073-89942021-09-011310180710.3390/sym13101807Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET TechnologiesPengcheng Huang0Chiyuan Ma1Zhenyu Wu2Microelectronics and Microprocessor Institute, School of Computer, National University of Defense Technology, Changsha 410073, ChinaMicroelectronics and Microprocessor Institute, School of Computer, National University of Defense Technology, Changsha 410073, ChinaMicroelectronics and Microprocessor Institute, School of Computer, National University of Defense Technology, Changsha 410073, ChinaIR-drop is a fundamental constraint by almost all integrated circuits (ICs) physical designs, and many iterations of timing engineer change order (ECO), IR-drop ECO, or other ECO are needed before design signoff. However, IR-drop analysis usually takes a long time and wastes so many resources. In this work, we develop a fast dynamic IR-drop predictor based on a machine learning technique, XGBoost, and the prediction method can be applied to vector-based and vectorless IR-drop analysis simultaneously. Correlation coefficient is often used to characterize the symmetry of prediction data and golden data, and our experiments show that the prediction correlation coefficient is more than 0.96 and the average error is no more than 1.3 mV for two industry designs, which are of 2.4 million and 3.7 million instances, respectively, and that the analysis is speeded up over 4.3 times compared with the IR-drop analysis by commercial tool, Redhawk.https://www.mdpi.com/2073-8994/13/10/1807IR-drop (IRD)machine learningengineer change order (ECO)XGBoost
spellingShingle Pengcheng Huang
Chiyuan Ma
Zhenyu Wu
Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET Technologies
Symmetry
IR-drop (IRD)
machine learning
engineer change order (ECO)
XGBoost
title Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET Technologies
title_full Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET Technologies
title_fullStr Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET Technologies
title_full_unstemmed Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET Technologies
title_short Fast Dynamic IR-Drop Prediction Using Machine Learning in Bulk FinFET Technologies
title_sort fast dynamic ir drop prediction using machine learning in bulk finfet technologies
topic IR-drop (IRD)
machine learning
engineer change order (ECO)
XGBoost
url https://www.mdpi.com/2073-8994/13/10/1807
work_keys_str_mv AT pengchenghuang fastdynamicirdroppredictionusingmachinelearninginbulkfinfettechnologies
AT chiyuanma fastdynamicirdroppredictionusingmachinelearninginbulkfinfettechnologies
AT zhenyuwu fastdynamicirdroppredictionusingmachinelearninginbulkfinfettechnologies