The Chief project provides an environment for analyzing parallel systems. The project aims to employ the Perfect club benchmarks to evaluate performance. A tool (MaxPar) determines the maximum available parallelism in a program by instrumenting each program; the results are computed by running the compiled result. Three different parallel trace generators convert benchmark programs into trace input files for simulation. Parallel simulation kernels based upon event-driven and hybrid time- and eventdriven models run on multiprocessors such as the Alliant FX/8. Simulation components are designed in a high-level language, and their modular design encourages reconfiguring existing components into new simulators to explore architectural variations. A graphical user-interface provides a powerful tool for simulator configuration, simulator debugging, and result visualization.