THIBAULT, Samuel; NAMYST, Raymond; WACRENIER, Pierre-André

doi:10.1007/978-3-540-74466-5_6

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THIBAULT, Samuel
Efficient runtime systems for parallel architectures [RUNTIME]
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

NAMYST, Raymond
Efficient runtime systems for parallel architectures [RUNTIME]
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

WACRENIER, Pierre-André
Efficient runtime systems for parallel architectures [RUNTIME]
Laboratoire Bordelais de Recherche en Informatique [LaBRI]

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Communication dans un congrès

Ce document a été publié dans

EuroPar, 2007-08-28, Rennes. 2007

Résumé en anglais

Exploiting full computational power of current more and more hierarchical multiprocessor machines requires a very careful distribution of threads and data among the underlying non-uniform architecture. Unfortunately, most operating systems only provide a poor scheduling API that does not allow applications to transmit valuable scheduling hints to the system. In a previous paper, we showed that using a bubble-based thread scheduler can significantly improve applications' performance in a portable way. However, since multithreaded applications have various scheduling requirements, there is no universal scheduler that could meet all these needs. In this paper, we present a framework that allows scheduling experts to implement and experiment with customized thread schedulers. It provides a powerful API for dynamically distributing bubbles among the machine in a high-level, portable, and efficient way. Several examples show how experts can then develop, debug and tune their own portable bubble schedulers.< Réduire

Mots clés en anglais

Threads

Scheduling

Bubbles

NUMA

SMP

Multi-Core

SMT

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Building Portable Thread Schedulers for Hierarchical Multiprocessors: the BubbleSched Framework

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