Impact of Coprocessor on a Multithreaded Processor Design Using Prioritized Threads

Carsten Albrecht, Andreas C. Döring, Frank Penczek, Torben Schneider, Hannes Schulz

Abstract

Recently, multithreading became a standard technique to improve the processor utilization and system performance. Hardware support is provided for coarse-grained as well as simultaneous multithreading. In particular, embedded devices combine processor cores and varying sets of coprocessors to fulfil the requirements of their dedicated application field. In this paper, a simultaneous multithreaded processor is investigated that applies dynamic priorities for each thread on the instruction level. By means of a synchronization coprocessor, priorities of threads are dynamically adapted when other threads have to wait for a given thread. Based on simulations of a network-processing workload, two strategies of dynamic priority adaptation are evaluated and compared with static prioritization. As a result, performance gain can be shown.

Original languageEnglish
Title of host publication14th Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP'06)
Number of pages7
PublisherIEEE
Publication date26.10.2006
Pages109-115
Article number1613260
ISBN (Print)0-7695-2513-X
DOIs
Publication statusPublished - 26.10.2006
Event14th Euromicro International Conference on Parallel, Distributed, and Network-Based Processing - Montbeliard-Sochaux , France
Duration: 15.02.200617.02.2006
Conference number: 68364

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