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Parallel Computing in Electrical Engineering, 2004. International Conference on (2004)
Dresden, Germany
Sept. 7, 2004 to Sept. 10, 2004
ISBN: 0-7695-2080-4
pp: 71-76
Tomasz Madajczak , Technical University of Gdansk, Poland
This document presents a theoretical analysis of state-of-the-art hardware threading approaches such as Switch on Event Multi Threading (SoEMT) and Simultaneous Multi Threading (SMT). It proposes that the On-Demand Virtual Single-Instruction-Multiple-Data (ODVSIMD) abstraction model is a very efficient method of hardware threading in certain scenarios.<div></div> The principles of ODVSIMD abstraction model are defined. Then, there is a proposition of the application for this abstraction model that is the data-driven automated loop partitioning. The document shows how the DOALL and DOACROSS loops can be parallelized with auto-partitioning to the ODVSIMD abstraction. This document then presents the results of parallel execution of both loop types. The results are obtained with a worksheet simulation. The document also discusses the main differences between SoEMT and SMT architectures in the context achievable performance.

T. Madajczak, "An Optimal Abstraction Model for Hardware Multithreading in Modern Processor Architectures," Parallel Computing in Electrical Engineering, 2004. International Conference on(PARELEC), Dresden, Germany, 2004, pp. 71-76.
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