Reliability-Aware Mapping Optimization of Multi-Core Systems with Mixed-Criticality

Abstract

This paper presents a novel mapping optimization technique for mixed critical multi-core systems with different reliability requirements. For this scope, we derived a quantitative reliability metric and presented a scheduling analysis that certifies given mixed-criticality constraints. Our framework is capable of investigating re-execution, passive replication, and modular redundancy with optimized voter placement, while typical hardening approaches consider only one or two of these techniques. The proposed technique complies with existing safety standards and is power-efficient, as demonstrated by our experiments.