Using the ALDY Load Distribution System for PVM Applications

. Load distribution is an important topic for parallel applications in distributed systems. PVM supports programming of parallel applications on distributed systems. But it does not provide load distribution among processes of a parallel program. In this paper the adaptive load distribution system ALDY is introduced. ALDY is a library of functions that provides basic mechanisms for load distribution and a collection of load distribution strategies. It can easily be used for PVM applications. This is demonstrated by an example. 1 Introduction PVM allows the use of distributed computing power for parallel applications. The parallel virtual machine offers mechanisms for process initiation, communication and synchronization. However, PVM does not support mechanisms for assigning and migrating workload among processes of parallel programs during execution. PVM only decides before the process creation, how processes should be distributed among different hosts. One criterion for this decisio..