Distributing a large-scale, complex fab simulation using HLA and Java: issues and lessons

Distributed simulation promises a range of benefits and opportunities, especially for modeling large-scale complex systems, such as wafer fabs. However, as with many promising technologies, the devil is in the details. This paper describes some experiences in distributing a high-fidelity, full fab simulation model with federates implemented in Java representing manufacturing processes, automated material handling systems, and control systems. Some informal comparisons with AutoMod/ASAP are included.