@MISC{Beran97communicationmodel, author = {Martin Beran}, title = {Communication Model of PVM}, year = {1997} }
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Abstract
We briefly describe the communication mechanism of PVM. We present results of experiments performed to obtain a quantitative estimate of PVM performance on a LAN of UNIX workstations. A theoretical model of PVM communication is shown and compared to the experiments. We analyze several variants of message passing available in PVM. 1 Introduction PVM (Parallel Virtual Machine) allows to use a (possibly heterogenous) network of computers as a parallel computer. A common configuration of PVM consists of a network of UNIX workstations connected by a local Ethernet network. To develop an efficient parallel program, we need to know the performance of the parallel computer. The main quantities which influence the execution time are the computation speed and the communication speed. In an ordinary LAN, the communication is several orders of magnitude slower than the computation. So programs which reduce communication are preferred. We will present a theoretical model of PVM communication. Resu...