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Performance and energy consumption balanced optimization of ternary optical computers based on partially synchronous
Liu Weiwen1, Shi Wenqiang1, Zhang Heqiang1
1School of Computer and Information Engineering, Fuyang Normal University, Fuyang, 236037, Anhui, China.
Scientific Reports
|July 19, 2026
Summary
This study introduces a new scheduling strategy for ternary optical computers (TOCs) to balance performance and energy use. The partially synchronous vacation mechanism optimizes task scheduling, reducing switching overhead and improving overall system utility.
Area of Science:
- Computer Engineering
- Optical Computing
- Performance Optimization
Background:
- Ternary optical computer (TOC) systems face challenges in balancing real-time performance and energy consumption.
- Hardware-induced state-switching overhead, including delay and energy costs, complicates system design.
Purpose of the Study:
- To develop a novel task scheduling strategy for TOC systems that addresses the performance-energy trade-off.
- To introduce and analyze a partially synchronous vacation mechanism to mitigate state-switching overhead.
Main Methods:
- A novel TOC task scheduling strategy and a three-stage queuing model were established.
- Analysis of system parameters' influence on queueing performance, energy consumption, and social utility under Poisson traffic.
- Comparison with a no-vacation scheme as a benchmark.
Main Results:
- The proposed model achieves optimal system social utility by tuning vacation-enabled processors and related parameters under various task arrival rates.
- The model demonstrates robustness under fluctuating workloads, as verified by bursty traffic experiments.
Conclusions:
- The partially synchronous vacation mechanism offers a viable solution for performance-energy bi-objective optimization in TOC systems.
- This work provides theoretical foundations and practical guidance for designing efficient TOC systems.
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