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EURETILE Design Flow: Dynamic and Fault Tolerant Mapping of Multiple Applications Onto Many-Tile Systems

Auteur(s) : L. Schor, I. Bacivarov, L.G. Murillo, P.S. Paolucci, F. Rousseau, A. El-Antably, R.L. Buecs, N. Fournel, R. Leupers, D. Rai, L. Thiele, L. Tosoratto, P. Vicini, J.H. Weinstock

Doc. Source: IEEE International Symposium on Parallel and Distributed Processing with Applications (ISPA'14)

Publisher : IEEE

Pages : 182-189

Doi : 10.1109/ISPA.2014.32

EURETILE investigates foundational innovations in the design of massively parallel tiled computing systems by introducing a novel parallel programming paradigm and a multi-tile hardware architecture. Each tile includes multiple general-purpose processors, specialized accelerators, and a fault-tolerant distributed network processor, which connects the tile to the inter-tile communication network. This paper focuses on the EURETILE software design flow, which provides a novel programming environment to map multiple dynamic applications onto a many-tile architecture. The elaborated high-level programming model specifies each application as a network of autonomous processes, enabling the automatic generation and optimization of the architecture-specific implementation. Behavioral and architectural dynamism is handled by a hierarchically organized runtime-manager running on top of a lightweight operating system. To evaluate, debug, and profile the generated binaries, a scalable many-tile simulator has been developed. High system dependability is achieved by combining hardware-based fault awareness strategies with software-based fault reactivity strategies. We demonstrate the capability of the design flow to exploit the parallelism of many-tile architectures with various embedded and high performance computing benchmarks targeting the virtual EURETILE platform with up to 192 tiles.