IEEE Transactions on Software Engineering - Special issue on formal methods in software practice
Collision graph based communication scheduling and applications
Collision graph based communication scheduling and applications
An equivalence checking methodology for hardware oriented C-based specifications
HLDVT '02 Proceedings of the Seventh IEEE International High-Level Design Validation and Test Workshop
Equivalence Checking of C Programs by Locally Performing Symbolic Simulation on Dependence Graphs
ISQED '06 Proceedings of the 7th International Symposium on Quality Electronic Design
Equivalence checking in C-based system-level design by sequentializing concurrent behaviors
ACST'07 Proceedings of the third conference on IASTED International Conference: Advances in Computer Science and Technology
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Increase in system level modeling has given rise to a need for efficient functional validation of models above cycle accurate level. This paper presents a technique for comparing system level models, before and after the static scheduling of tasks on processing elements of the architecture. We derive a graph representation from models written in system level design languages (SLDLs) and define their execution semantics. Notion of functional equivalence of system level models is established using these graphs. We then present well defined rules for reduction of such graphs to a normal form. Finally, we show how to check for functional equivalence of two system level models by isomorphism of their normal graph representations. A checker built on the above concept is used to automatically validate the functional correctness of the static scheduling step. As a result, the models generated for various scheduling decisions do not have to be reverified using costly simulations.