DIVA: a reliable substrate for deep submicron microarchitecture design
Proceedings of the 32nd annual ACM/IEEE international symposium on Microarchitecture
NanoFabrics: spatial computing using molecular electronics
ISCA '01 Proceedings of the 28th annual international symposium on Computer architecture
Towards nanocomputer architecture
CRPIT '02 Proceedings of the seventh Asia-Pacific conference on Computer systems architecture
Roll-Forward Checkpointing Scheme: A Novel Fault-Tolerant Architecture
IEEE Transactions on Computers
Enhanced Cluster k-Ary n-Cube, A Fault-Tolerant Multiprocessor
IEEE Transactions on Computers
Fault tolerant nanoelectronic processor architectures
Proceedings of the 2005 Asia and South Pacific Design Automation Conference
A system architecture solution for unreliable nanoelectronic devices
IEEE Transactions on Nanotechnology
Towards achieving reliable and high-performance nanocomputing via dynamic redundancy allocation
ACM Journal on Emerging Technologies in Computing Systems (JETC)
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Nanoelectronic devices are expected to have extremely high and variable fault rates; thus future processor architectures based on these unreliable devices need to be built with fault tolerance embedded so as to satisfy the fundamental requirement of computational correctness. In this paper an architectural-level computation model is proposed for fault tolerant computations in nanoelectronic processors. The proposed scheme is capable of guaranteeing the correctness of each instruction through exploitation of both hardware and time redundancy, even under high and variable fault rates. Each instruction is confirmed by multiple computation instances. Through a speculative execution based on unconfirmed results, the proposed scheme eliminates the severe performance deterioration typically caused by time redundancy approaches on data dependent instructions. To avoid the exponential growth of resource allocation introduced by the hardware redundancy approaches on the speculations, a hardware allocation framework is developed in the proposed scheme to control the growth of hardware resources while preserving the low latency achieved through the speculative executions. We set up an experimental framework to validate the effectiveness of the proposed scheme as well as to investigate multiple tradeoff points within the proposed approach. Experimental data further confirm that the proposed approach achieves the goal of providing fault tolerance in the pipelined nanoelectronic processors, while at the same time providing high system performance and efficient utilization of hardware resources.