Abstract
Validating discrete-event computer simulations for a particular problem domain often involves the help of a domain expert. This means that a certain structural closeness between the simulator’s inner workings and the modeled system is needed in order to allow the expert to follow the implementation in analogy. Process-based simulation imposes an object-oriented view onto a modeled system which allows for a high degree of structural closeness in most cases. In comparison, event-based simulation requires a procedural definition with a relatively low degree of structural closeness for many cases, but outperforms the process-based approach both in terms of performance and portability. Recent advances in compiler technology have introduced a portable way of rewriting thread-based code into event-based code, effectively providing the means to implement portable green-threads in compiled system languages.
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