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Cross-layer resilience for rack-scale disaggregated memory

Description du projet

Plus de mémoire pour les applications gourmandes en données

L’augmentation rapide de la connectivité sociale et du commerce électronique nécessite une augmentation de la mémoire informatique pour stocker et traiter de plus grandes quantités de données avec une faible latence. Mais augmenter la mémoire informatique signifie plus d’erreurs de mémoire, ce qui peut perturber la disponibilité du service et entraîner des pertes de données. Dans ce contexte, le projet SHEPHERD, financé par l’UE, développera des techniques de résilience de la mémoire intercouche où le logiciel et le matériel fonctionnent ensemble pour éviter l’indisponibilité du service et la perte de données dues à des erreurs de mémoire dans la mémoire désagrégée avec une faible surcharge. En tant que projet subventionné, il s’appuiera sur les forces existantes du chercheur expérimenté dans le domaine de la conception de logiciels système pour la mémoire non volatile et sur l’expertise de l’hôte sur la tolérance aux pannes de mémoire et les architectures de micro-serveurs.

Objectif

Data-intensive applications, such as search, social connectivity, and e-commerce, are increasingly relying on computer memory for storing and processing a large amount of data with low latency. Emerging disaggregated memory meets this growing demand by leveraging recent technology advances in high-density, byte-addressable non-volatile memory and low-latency interconnects to provide a large memory pool shared across micro-server compute nodes. With a larger memory density and capacity though, memory errors will become more frequent. Addressing such errors becomes paramount as they can cripple service availability and cause data loss. However, established hardware techniques for tolerating memory errors transparently to application software, originally developed for DRAM-based main-memory systems, become impractical at the scale of disaggregated memory due to increasing performance, energy and area overheads. This research will investigate and develop cross-layer memory resilience techniques where software and hardware work together cooperatively to prevent service unavailability and data loss due to memory errors in disaggregated memory with low overhead. It capitalizes on the existing strengths of the experienced researcher (ER) in the area of system software design for non-volatile memory and expertise of the host on memory fault tolerance and micro-server architectures. It will lead to several publications in top-quality venues and will inform forthcoming industrial efforts to develop resilient disaggregated memory micro-server architectures, thus contributing to the research output, visibility, and economy of Europe. Overall, the fellowship will give the ER the opportunity to reintegrate into a long-term academic position in Europe, after a long and fruitful research career in the academic and industrial sectors of the United States. The ER will emerge from the project with new skills and the capability to effectively lead his own research group.

Coordinateur

UNIVERSITY OF CYPRUS
Contribution nette de l'UE
€ 145 941,12
Adresse
AVENUE PANEPISTIMIOU 2109 AGLANTZI
1678 Nicosia
Chypre

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Région
Κύπρος Κύπρος Κύπρος
Type d’activité
Higher or Secondary Education Establishments
Liens
Coût total
€ 145 941,12