Fault-tolerant systems: the way biology does it!

Ortega-Sánchez, César; Tyrrell, Andy M.

doi:10.1109/emscnt.1997.658454

Cited by 12 publications

(8 citation statements)

References 2 publications

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“…For comparison purposes the same logic and SB design was used as proposed by Prodan et al [4] and Ortega-Sanchez and Tyrrell [10]. Self-check in each cell of the embryonic array is performed by built-in self-test logic proposed by Mange et al [15].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…In order to demonstrate the efficiency of the metamorphic memory method, a programmable frequency divider that had already been designed by conventional methods [10] has been selected as a test vehicle. The implementation of this example using universal logic elements in form of 2:1 multiplexers with associated registers is shown in Fig.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…If fault in a cell is detected then various on-line reconfiguration algorithms are used for its replacement by a healthy cell so that fault-free system operation can continue [5,10]. Functional behaviour of an embryonic system is defined, analogously to biological systems, by its DNA stored in the memory of every one of its cells.…”

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confidence: 99%

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Cyclic metamorphic memory for cellular bio-inspired electronic systems

Samie

Farjah

Dragffy

2008

Genet Program Evolvable Mach

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In nature the DNA contained in each cell of an organism, is in fact a memory map that, through the transcription of its genes, describes the unique characteristics of the individual. Similarly in an artificial embryonic cell, used to construct electronic systems, a memory map and its relevant gene also describes and determines the functionality of each cell and, collectively, the entire system. This paper proposes a new variable size memory map based on a novel and efficient gene selection algorithm that no longer uses the hitherto common address decoding approach to access some fixed memory space. Instead, it applies the principle of cyclic metamorphic gene selection of the artificial DNA memory. A further benefit of the approach is that the functionality of the system can also be easily altered through genetic operators or variable memory space environment for enhanced behaviour. It is suitable therefore for the implementation of GA processes.

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Section: Simulation Resultsmentioning

confidence: 99%

Section: Simulation Resultsmentioning

confidence: 99%

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Cyclic metamorphic memory for cellular bio-inspired electronic systems

Samie

Farjah

Dragffy

2008

Genet Program Evolvable Mach

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“…Then, based on the specifications of the desired circuit, the EHW starts to evolve towards the optimal circuit via self-reproduction. The EHW also can explore fault-tolerance architectures via self-healing (or self-repair) mechanisms [21].…”

Section: Evolvable Hardwarementioning

confidence: 99%

Architecture synthesis methodology of run-time reconfigurable multi-task and multi-mode systems with self-assembling micro-architecture

Chun¹

2021

Preprint

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Despite the success that programmable devices have enjoyed in the last two decades, architecture synthesis methodologies for Run-Time Reconfigurable (RTR) systems are still in their infancy. As the majority of consumer devices integrate multiple-functionality, the cost-effectiveness becomes the main focus of computing systems design. This thesis presents a novel architecture synthesis methodology for the cost-effective implementation of a multi-task and multi-mode workload. The proposed methodology creates a RTR system that changes its functionality in response to a dynamic environment and enables on-chip assembly of pre-constructed components by synthesizing a workload-specific static architecture. The proposed methodology presents novelties in design abstraction, partitioning method and in the procedure of deciding reconfiguration granularity. The experimental results show the cost benefits of the proposed architecture synthesis methodology saving 73% of area and 29.8% of power compared to fixed design approach

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“…The full genome memory is used in the classic structure of embryonics [5,6]. Analogous to the biological cell, each embryonics cell contains the entire genetic material of the system.…”

Section: Introductionmentioning

confidence: 99%

Partial-DNA cyclic memory for bio-inspired electronic cell

Zhu

Cai

Yang

2015

Genet Program Evolvable Mach

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Genome memory is an important aspect of electronic cells. Here, a novel genome memory structure called partial-DNA cyclic memory is proposed, in which cells only store a portion of the system's entire DNA. The stored gene number is independent of the scale of embryonic array and of the target circuit, and can be set according to actual demand in the design process. Genes can be transferred in the cell and the embryonics array through intracellular and intercellular gene cyclic and non-cyclic shifts, and based on this process the embryonic array's functional differentiation and self-repair can be achieved. In particular, lost genes caused by faulty cells can be recovered through gene updating based on the remaining normal neighbor cells during the self-repair process. A reliability model of the proposed memory structure is built considering the gene updating method, and depending on the implementations of the memory, the hardware overhead is modeled. Based on the reliability model and hardware overhead model, we can find that the memory can achieve high reliability with relatively few gene backups and with low hardware overhead. Theoretical analysis and a simulation experiment show that the new genome memory structure not only achieves functional differentiation and self-repair of the embryonics array, but also ensures system reliability while reducing hardware overhead. This has significant value in engineering applications, allowing the proposed genome memory structure to be used to design larger scale self-repair chips.

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Fault-tolerant systems: the way biology does it!

Cited by 12 publications

References 2 publications

Cyclic metamorphic memory for cellular bio-inspired electronic systems

Cyclic metamorphic memory for cellular bio-inspired electronic systems

Architecture synthesis methodology of run-time reconfigurable multi-task and multi-mode systems with self-assembling micro-architecture

Partial-DNA cyclic memory for bio-inspired electronic cell

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