GARDMON: A Java-based Monitoring Tool for Gardens Non-dedicated Cluster Computing System

The QUT’s Gardens project aims to create a virtual parallel machine out of a network of nondedicated computers (workstations/PCs). These systems are interconnected through low latency and high bandwidth communication links such as Myrinet. Gardens is an integrated programming language and system designed to utilize the idle workstation’s CPU cycles to support adaptive parallel computing. A Gardens computation consists of a network of communicating tasks, dynamically mapped onto a network of processors. Tasks are created dynamically and each task consists of a stack and a collection of heap segments in which dynamic data structures are stored. We designed and developed a Gardens cluster monitoring system called Gardmon. It is a portable, flexible, interactive, scalable, locationtransparent, and comprehensive environment for monitoring of Gardens runtime activities. It follows client-server methodology and provides transparent access to all nodes to be monitored from a monitoring machine. The features of Gardmon in monitoring Gardens adaptive parallel computing system seem satisfactory.