Coarse-Grained TMR Soft-Core Processor Fault Tolerance Methods and State Synchronization for Run-Time Fault Recovery

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26230%2F19%3APU132059" target="_blank" >RIV/00216305:26230/19:PU132059 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.fit.vut.cz/research/publication/11879/" target="_blank" >https://www.fit.vut.cz/research/publication/11879/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/LATW.2019.8704639" target="_blank" >10.1109/LATW.2019.8704639</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Coarse-Grained TMR Soft-Core Processor Fault Tolerance Methods and State Synchronization for Run-Time Fault Recovery

Popis výsledku v původním jazyce

Triple Modular Redundancy (TMR) applied with various granularity combined with periodical scrubbing of a configuration memory or with run-time Partial Dynamic Reconfiguration (PDR) for fault recovery are one of the most preferred Single Event Upset (SEU) mitigation techniques used by Fault Tolerant Systems (FTS) implemented into SRAM-based FPGAs. Usage of PDR and TMR allows recovering of FTSs from all transient SEU faults and offers run-time fault mitigation compared to scrubbing methods which only correct configuration upsets and are limited by scrubbing period latency. Reconfigurable TMR architecture may require global state maintenance after PDR is applied for fault removal. In such situation, operational state of reconfigured circuit copy needs to be synchronized with remaining circuit copies which were active during PDR. This paper evaluates existing synchronization methods for reconfigurable TMR architectures and soft-core processors; presents our recent research focused on a state synchronization methodology compared to the state of the art methods and further investigates strategy for a state synchronization of TMR-protected soft-core processor neo430.

Název v anglickém jazyce

Coarse-Grained TMR Soft-Core Processor Fault Tolerance Methods and State Synchronization for Run-Time Fault Recovery

Popis výsledku anglicky

Triple Modular Redundancy (TMR) applied with various granularity combined with periodical scrubbing of a configuration memory or with run-time Partial Dynamic Reconfiguration (PDR) for fault recovery are one of the most preferred Single Event Upset (SEU) mitigation techniques used by Fault Tolerant Systems (FTS) implemented into SRAM-based FPGAs. Usage of PDR and TMR allows recovering of FTSs from all transient SEU faults and offers run-time fault mitigation compared to scrubbing methods which only correct configuration upsets and are limited by scrubbing period latency. Reconfigurable TMR architecture may require global state maintenance after PDR is applied for fault removal. In such situation, operational state of reconfigured circuit copy needs to be synchronized with remaining circuit copies which were active during PDR. This paper evaluates existing synchronization methods for reconfigurable TMR architectures and soft-core processors; presents our recent research focused on a state synchronization methodology compared to the state of the art methods and further investigates strategy for a state synchronization of TMR-protected soft-core processor neo430.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20206 - Computer hardware and architecture

Projekt

<a href="/cs/project/LQ1602" target="_blank" >LQ1602: IT4Innovations excellence in science</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

20th IEEE Latin American Test Symposium (LATS 2019)

ISBN

978-1-7281-1756-0

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

32-35

Název nakladatele

IEEE Computer Society

Místo vydání

Santiago

Místo konání akce

Hotel Fundador, Santiago de Chile

Datum konání akce

11. 3. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000469850000036