Performance modeling of heterogeneous distributed applications

Heterogeneous network computing allows the development of a single complex application using a distributed network of machines; these machines may differ in terms of CPU and memory capacity and/or architecture and specialized functions. We present a modeling technique, based on generalized stochastic Petri nets (GSPNs), for the performance analysis of applications targeted to this class of systems (heterogeneous applications). We illustrate the use of the proposed technique by modeling and analyzing the CASA 3D-REACT heterogeneous application.