Spatial pattern prediction based management of faulty data caches

Κεραμίδας, Γεώργιος; Mavropoulos, Michail; Karvouniari, Anna; Nikolos, D.

doi:10.7873/date.2014.073

Cited by 4 publications

(3 citation statements)

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“…Word disabling tracks defects at wordlevel granularity, combining two consecutive cache entries into a single fault-free entry, halving both associativity and capacity [10]. Abella et al In the context of ultra-low voltages, Keramidas et al use a PC-indexed spatial predictor to orchestrate the replacement decisions among fully and partially usable entries in first-level caches [46]. We based our allocation predictions on reuse patterns, which simplifies the hardware, and we do not consider the use of partially faulty entries.…”

Section: Related Workmentioning

confidence: 99%

A fault-tolerant last level cache for CMPs operating at ultra-low voltage

Ferrerón

Alastruey-Benedé

Gracia

et al. 2019

Journal of Parallel and Distributed Computing

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Section: Related Workmentioning

confidence: 99%

A fault-tolerant last level cache for CMPs operating at ultra-low voltage

Ferrerón

Alastruey-Benedé

Gracia

et al. 2019

Journal of Parallel and Distributed Computing

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“…The extra cache proposed in [2], called RVC cache, targets in providing safe and tight worst-case execution times for hard real-time applications. Recently a fault-tolerant aware (re)placement policy based on a spatial footprint prediction mechanism was proposed [10]. This technique was presented for only 2-way associative faulty caches and is not straightforwardly extensible to higher associative caches.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable

Mavropoulos

Κεραμίδας

Adamopoulos

et al. 2015

Proceedings of the 25th Edition on Great Lakes Symposium on VLSI

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Processor caches play a critical role in the performance of today's computer systems. As technology scales, due to manufacturing defects and process variations a large number of cells in a cache is expected to be faulty. The number of faulty cells varies from die to die and in the field of the application depends on the operating conditions (e.g., supply voltage, frequency). Several techniques have been proposed to tolerate faults in caches. A drawback of the redundancy based techniques is that the amount of redundancy is decided at the design time targeting a maximum number of faults, so in cases of a small number of faults (e.g., in the nominal supply voltage in a system with DVS) only a part of the redundant resources is used. In this paper we propose a new reconfigurableself adaptive fault tolerant cache scheme. The unique characteristic of our scheme is that it uses its resources for both the reduction of the misses caused by the faulty blocks as well as for the reduction of conflict misses, depending on the number of faults, their distribution in the cache, and the running application. Our experimental results for a wide range of scientific applications and a plethora of fault maps with different SRAM failure probabilities reveal that our proposal can achieve significant benefits.

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“…A combination of local and remote execution taking into account the well known communication vs. computation ratio will be also examined. However, in our case, this classic "communication vs. computation" tradeoff will be extended to include the concerts of reliability and fault-tolerance [35]. For example, given a set of processing (local or remote) units, which is the most reliable unit for a given algorithm or a program phase of an algorithm?…”

Section: Embedded Systems Design and Hardware Acceleratorsmentioning

confidence: 99%

Robots in Assisted Living Environments as an Unobtrusive, Efficient, Reliable and Modular Solution for Independent Ageing: The RADIO Perspective

Antonopoulos¹,

Κεραμίδας²,

Voros³

et al. 2015

Lecture Notes in Computer Science

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Abstract. Demographic and epidemiologic transitions in Europe have brought a new health care paradigm where life expectancy is increasing as well as the need for long-term care. To meet the resulting challenge, European healthcare systems need to take full advantage of new opportunities offered by technical advancements in ICT. The RADIO project explores a novel approach to user acceptance and unobtrusiveness: an integrated smart home/assistant robot system where health monitoring equipment is an obvious and accepted part of the user's daily life. By using the smart home/assistant robot as sensing equipment for health monitoring, we mask the functionality of the sensors rather than the sensors themselves. In this manner, sensors do not need to be discrete and distant or masked and cumbersome to install; they do however need to be perceived as a natural component of the smart home/assistant robot functionalities.

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Spatial pattern prediction based management of faulty data caches

Cited by 4 publications

References 0 publications

A fault-tolerant last level cache for CMPs operating at ultra-low voltage

A fault-tolerant last level cache for CMPs operating at ultra-low voltage

Reconfigurable

Robots in Assisted Living Environments as an Unobtrusive, Efficient, Reliable and Modular Solution for Independent Ageing: The RADIO Perspective

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