S. Seth, LSI Logic Corp., Milpitas, CA, USA
In this paper we present a method of parallelizing test generation for combinational logic using boolean satisfiability. We propose a dynamic search-space allocation strategy to split work between the available processors. This strategy is easy to implement with a greedy heuristic and is economical in its demand for inter-processor communication. We derive an analytical model to predict the performance of the parallel versus sequential implementations. The effectiveness of our method and analysis is demonstrated by an implementation on a Sequent (shared memory) multiprocessor. The experimental data shows significant performance improvement in parallel implementation, validates our analytical model, and allows predictions of performance for a range of time-out limits and degrees of parallelism.
Index Terms:
combinational circuits; logic testing; Boolean functions; software performance evaluation; processor scheduling; parallel algorithms; shared memory systems; parallel test generation; low communication overhead; combinational logic; boolean satisfiability; dynamic search-space allocation strategy; greedy heuristic; analytical model; Sequent multiprocessor; shared memory multiprocessor
Citation:
S. Venkatraman, S. Seth, P. Agrawal, "Parallel test generation with low communication overhead," vlsid, pp.116, 8th International Conference on VLSI Design, 1995