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Mechanisms for runtime fault-tolerance in many-core architectures are mandatory to cope with transient and permanent faults. This issue is even more relevant with aggressive technology nodes due to process variability, aging effects, and susceptibility to upsets, among other factors. This work proposes to save periodically the context and to re-schedule tasks to the last reliable known state and avoid...
This paper presents a dynamic scheduling solution to achieve fault tolerance in many-core architectures. Triple Modular Redundancy is applied on the multi-threaded application to dynamically mitigate the effects of both permanent and transient faults, and to identify and isolate damaged units. The approach targets the best performance, while balancing the use of the healthy resources to limit wear-out...
AADL is an architecture description language intended for model-based engineering of high-integrity distributed systems. The AADL Behavior Annex (AADL-BA) is an extension allowing the refinement of behavioral aspects described through an AADL architectural description. When implementing Distributed Real-time Embedded system (DRE), fault tolerance concerns are integrated by applying replication patterns...
Embedded processors, like for example processor macros inside modern FPGAs, are becoming widely used in many applications. As soon as these devices are deployed in radioactive environments, designers need hardening solutions to mitigate radiation-induced errors. When low-cost applications have to be developed, the traditional hardware redundancy-based approaches exploiting m-way replication and voting...
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