Implementation and Performance of DSMPI

Abstract

Distributed shared memory has been recognized as an alternative programming model to exploit the parallelism in distributed memory systems because it provides a higher level of abstraction than simple message passing. DSM combines the simple programming model of shared memory with the scalability of distributed memory machines. This article presents DSMPI, a parallel library that runs atop of MPI and provides a DSM abstraction. It provides an easy-to-use programming interface, is fully, portable, and supports heterogeneity. For the sake of flexibility, it supports different coherence protocols and models of consistency. We present some performance results taken in a network of workstations and in a Cray T3D which show that DSMPI can be competitive with MPI for some applications.

Dual Sliding Mode Controller for Hybrid Ac-Dc Microgrid System

“…This DSM-PI controller monitors Kp and Ki's proportional and integrated gains and thereby reduces the response time of the system. Reducing oscillations and disturbances is a major advantage of this technology in terms of response time (L. M. Silva, J. G. Silva, and S. Chapple, 1996).…”