CSIM was especially developed for modeling and visualizing large complex systems. It emphasizes speed and memory efficiency, and has been successfully applied on projects containing hundreds of processors and thousands of application tasks. Perf Mod Lib - Library of processors and network system component models. CSIM - System architecture simulator. GSIM - Graphical simulation control panel.
Separate documents describe each of the above utilities and model libraries.
A model of a candidate hardware system is assembled from the library of processors and network models. This may also include modifying some of the component models to express new behaviors for new or proposed components. The bandwidth and latency of each communication link are specified. When executed within the CSIM simulator, the processor models interpret and respond to software applications mapped to them. This allows the software application programs to be portable across architectures, since the programs need only specify the logical destination of an outgoing message, without need of knowing how it gets there.