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Performance Portability and Programmability for Heterogeneous Many-core Architectures

Description du projet


Computing Systems
To develop a framework for programming and optimizing applications for heterogeneous many-core processors. It will allow applications developers to extract optimal performance with fast time-to-market

 The emergence of heterogene-ous many-core processors, in a large spectrum of systems from embedded and general-purpose to high-end computing systems, poses major challenges to the European software industry. In general, there is no guarantee that software developed for a particular architecture will be executable on another, related architecture. For instance, H.264 codecs are essentially rewritten for each generation of DSP proc-essor in heterogeneous architec-tures, a practice that is clearly wasteful in resources and should be avoided as far as possible. A related issue is the coding of multiple versions of H.264 codecs to play back or encode different resolutions of video (QVGA, VGA, WVGA, D1, 720p, 1080i, or 1080p) using differing numbers of cores and memory in order to meet the proc-essing requirements for each resolution. The PEPPHER project is de-veloping a unified framework for programming and optimizing appli-cations for heterogeneous many-core processors to ensure func-tional and performance portability with reasonable programming effort. PEPPHER envisions two kinds of programmers: (1) “mainstream programmers” who build applications using the PEPPHER framework and specify performance-expectations, (2) “expert programmers” who imple-ment and extend the PEPPHER framework. Once an application is devel-oped using the PEPPHER methodology and framework, no further porting effort of the mainstream programmer is needed for efficient execution of application on any of the target PEPPHER platforms. For a set of target applications and platforms, PEPPHER will reduce the porting effort of the mainstream programmer to zero.

The emergence of highly parallel, heterogeneous, often incompatible and highly diverse, many-core processors poses major challenges to the European software-intensive industry. It is imperative that such architectures can be fully exploited without starting from scratch with each new design. In particular, there is an urgent need for techniques for efficient, productive and portable programming of heterogeneous many-cores.PEPPHER will provide a unified framework for programming architecturally diverse, heterogeneous many-core processors to ensure performance portability. PEPPHER will advance state-of-the-art in its five technical work areas:(1)\tMethods and tools for component based software; (2) Portable compilation techniques; (3) Data structures and adaptive, autotuned algorithms; (4) Efficient, flexible run-time systems; and (5) Hardware support for autotuning, synchronization and scheduling.PEPPHER is unique in proposing direct compilation to the target architectures. Portability is supported by powerful composition methods and a toolbox of adaptive algorithms. Heterogeneity is further managed by efficient run-time schedulers. The PEPPHER framework will thus ensure that applications execute with maximum efficiency on each supported platform.PEPPHER is driven by challenging benchmarks from the industrial partners. Results will be widely disseminated through high-quality publications, workshops and summer-schools, and an edited volume of major results. Techniques and software prototypes will be exploited by the industrial partners. A project website (www.peppher.eu) gives continuity to the dissemination effort.The PEPPHER consortium unites Europe's leading experts and consists of world-class research centres and universities (INRIA, Chalmers, LIU, KIT, TUW, UNIVIE), a major company (Intel) and European multi-core SMEs (Codeplay and Movidius), and has the required expertise to accomplish the ambitious but realistic goals of PEPPHER.

Appel à propositions

FP7-ICT-2009-4
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Coordinateur

UNIVERSITAT WIEN
Contribution de l’UE
€ 648 600,00
Adresse
UNIVERSITATSRING 1
1010 Wien
Autriche

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Région
Ostösterreich Wien Wien
Type d’activité
Higher or Secondary Education Establishments
Contact administratif
Sabri PLLANA (Dr.)
Liens
Coût total
Aucune donnée

Participants (9)