Paper ID: 2410.12142

Design Space Exploration of Embedded SoC Architectures for Real-Time Optimal Control

Kris Shengjun Dong, Dima Nikiforov, Christopher Fletcher, Yakun Sophia Shao

Empowering resource-limited robots to execute computationally intensive tasks like model/learning-based algorithms is challenging. Due to the complexity of the workload characteristic, the bottlenecks in different systems can depend on application requirements, preventing a single hardware architecture from being adequate across all robotics applications. This project provides a comprehensive design space exploration to determine optimal hardware computation platforms and architectures suitable for robotic algorithms. We profile and optimize representative architectural designs across general-purpose cores and specialized accelerators. Specifically, we compare CPUs, vector machines, and domain-specialized accelerators with kernel-level benchmarks and end-to-end representative robotic workloads. Our exploration provides a quantitative performance, area, and utilization comparison and analyzes the trade-offs between these representative distinct architectural designs. We demonstrate that the variation of hardware architecture choices depends on workload characteristics and application requirements. Finally, we explore how architectural modifications and software ecosystem optimization can alleviate bottlenecks and enhance utilization.

Submitted: Oct 16, 2024