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The Thread Migration Mechanism of DSM-PEPE
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The Thread Migration Mechanism of DSM-PEPE
Federico Meza1  and Cristian Ruz2
| (1) |
Depto. de Ciencia de la Computación, Universidad de Talca, Camino Los Niches Km. 1, Curicó, Chile |
| (2) |
Escuela de Ingeniería Informática, Universidad Diego Portales, Ejército 441, Santiago, Chile |
Abstract
In this paper we present the thread migration mechanism of DSM-PEPE, a multithreaded distributed shared memory system. DSM
systems like DSM-PEPE provide a parallel environment to harness the available computing power of computer networks. DSM systems
offer a virtual shared memory space on top of a distributed-memory multicomputer, featuring the scalability and low cost of
a multicomputer, and the ease of programming of a shared-memory multiprocessor.
DSM systems rely on data migration to make data available to running threads. The thread migration mechanism of DSM-PEPE was
designed as an alternative to this data migration paradigm. Threads are allowed to migrate from one node to another, as needed
by the computation. We show by experimentation the feasibility of the thread migration mechanism of DSM-PEPE as an alternative
to improve application perfomance by enhancing spatial locality.
Keywords Thread migration - distributed shared memory - multithreading - spatial locality
Federico Meza was supported by Fondecyt under grant 2990074.
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