Adaptive data placement in an embedded multiprocessor thread library

Authors:
Phillip Stanley-Marbell;Kanishka Lahiri;Anand Raghunathan
Affiliations:
Carnegie Mellon University, Pittsburgh, PA;NEC Laboratories America, Princeton, NJ;NEC Laboratories America, Princeton, NJ
Venue:
Proceedings of the conference on Design, automation and test in Europe: Proceedings
Year:
2006

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Abstract

Embedded multiprocessors pose new challenges in the design and implementation of embedded software. This has led to the need for programming interfaces that expose the capabilities of the underlying hardware. In addition, for systems that implement applications consisting of multiple concurrent threads of computation, the optimized management of interthread communication is crucial for realizing high-performance.This paper presents the design of an application-adaptive thread library that conforms to the IEEE POSIX 1003.1c threading standard (Pthreads). The library adapts the placement of both explicitly marked application data objects, as well as implicitly marked application data objects, as well as implicitly created data objects, in a physically distributed on-chip memory architecture, based on the application's data access characteristics.