Two-Phase Triple Modular Redundancy TMR divides redundancy operations into two stages, omitting part of the computation during fault-free operation to reduce energy consumption. However, it becomes ineffective under permanent faults, limiting its reliability in critical systems. To address this, Reactive-TMR (R-TMR) introduces permanent fault isolation mechanisms for faulty cores, tolerating both transient and permanent faults. Yet, its reliance on additional hardware increases system complexity and reduces fault tolerance when multiple cores or auxiliary modules fail. This paper proposes an integrated fault-tolerant architecture for interconnected multicore systems. By constructing a stability metric to identify reliable machines and performing periodic diagnostics, the method enables permanent fault isolation and adaptive task scheduling without extra hardware. Experimental results show that it reduces task workload by approximately 30% compared to baseline TMR and achieves superior fault coverage and isolation accuracy, significantly improving both reliability and energy efficiency.

翻译：双阶段三模冗余TMR将冗余操作分为两个阶段，在无故障运行期间省略部分计算以降低能耗。然而，该方法在永久性故障下失效，限制了其在关键系统中的可靠性。为解决此问题，反应式三模冗余R-TMR引入了针对故障核心的永久性故障隔离机制，能够同时容忍瞬态与永久性故障。但其对额外硬件的依赖增加了系统复杂性，且在多个核心或辅助模块故障时容错能力下降。本文提出一种面向互连多核系统的集成化容错架构。通过构建稳定性度量指标以识别可靠机器，并执行周期性诊断，该方法可在无需额外硬件的情况下实现永久性故障隔离与自适应任务调度。实验结果表明，相较于基准TMR方法，本方案将任务负载降低约30%，同时获得更优的故障覆盖率和隔离精度，显著提升了系统可靠性与能效。