Abstract
Clusters of PCs are an attractive platform for parallel
applications because of their cost effectiveness. We have
implemented an interoperable runtime system called Converse on a
cluster of Linux PCs connected by an inexpensive switched Fast
Ethernet. This paper presents our implementation and its
performance evaluation. We consider the question of the performance
impact of using inexpensive communication hardware on real
applications, using a large production-quality molecular dynamics
program, NAMD, that runs on this cluster.