Title
Runtime Task Scheduling Using Imitation Learning for Heterogeneous Many-Core Systems
Abstract
Domain-specific systems-on-chip, a class of heterogeneous many-core systems, is recognized as a key approach to narrow down the performance and energy-efficiency gap between custom hardware accelerators and programmable processors. Reaching the full potential of these architectures depends critically on optimally scheduling the applications to available resources at runtime. Existing optimization-based techniques cannot achieve this objective at runtime due to the combinatorial nature of the task scheduling problem. As the main theoretical contribution, this article poses scheduling as a classification problem and proposes a hierarchical imitation learning (IL)-based scheduler that learns from an Oracle to maximize the performance of multiple domain-specific applications. Extensive evaluations with six streaming applications from wireless communications and radar domains show that the proposed IL-based scheduler approximates an offline Oracle policy with more than 99% accuracy for performance- and energy-based optimization objectives. Furthermore, it achieves almost identical performance to the Oracle with a low runtime overhead and successfully adapts to new applications, many-core system configurations, and runtime variations in application characteristics.
Year
DOI
Venue
2020
10.1109/TCAD.2020.3012861
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Keywords
DocType
Volume
Domain-specific SoC (DSSoC),heterogeneous computing,imitation learning (IL),many-core architectures,scheduling
Journal
39
Issue
ISSN
Citations 
11
0278-0070
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Anish Krishnakumar100.68
Samet E. Arda211.39
A. Alper Goksoy300.68
Sumit K. Mandal4121.92
Umit Y. Ogras5112054.67
Anderson Luiz Sartor6317.67
Radu Marculescu74366267.69