Compose: an object-oriented environment for parallel discrete-event simulations

Existing environments for parallel discrete-event simulation provide support for either conservative or optimistic algorithms, with very few supporting both. This paper describes a parallel simulation environment that supports the execution of a model using an existing adaptive simulation algorithm where sub-models may be synchronized using conservative or optimistic algorithms, and an object may dynamically change its mode of synchronization. The environment has been designed as a C++ class library and has been implemented on an IBM SP2 multicomputer