Название: Workload Dependent Mitigation Approaches for Performance Variability: Ensuring Timing Guarantees of Integrated Circuits
Автор: Ji-Yung Lin, Michalis Noltsis, Dimitrios Soudris, Francky Catthoor
Издательство: Springer
Год: 2025
Страниц: 186
Язык: английский
Формат: pdf (true), epub
Размер: 25.9 MB
This book provides a holistic view of workload-dependent mitigation techniques for performance variability. The authors describe the use of design-time profiling information to reduce the uncertainties in future execution time calculation at run time, thereby offering the best option for minimizing system costs while reducing missed deadlines. Readers are introduced to an approach that combines dynamic voltage and frequency scaling (DVFS) with heterogeneous datapaths (HDP), enabling users to tackle performance variability of multiple timescales down to the sub-millisecond level. To reduce performance variability, real-time mitigation approaches are used in the online operation of various modern systems and platforms, including processors, memory organizations, and communication networks. Mitigation approaches use on-chip monitors to detect the amount of variability at run time. Based on the amount of variability and the prediction of future workload, a run-time controller changes the speed of the system or the platform by altering system knobs. With the rapid development of the semiconductor transistor technology, electronic devices made of Very Large-Scale Integration (VLSI) chips become necessities in our daily lives, with countless functions such as computation, communication, entertainment, etc. Timing guarantee is the main focus of this book among all reliability requirements.