The Multi-SAT Algorithm

Many e cient algorithms have been developed for satis ability testing. They complement rather than exclude each other by being e ective for particular problem instances. In this research, we give a Multi-SAT algorithm for the SAT problem. The Multi-SAT algorithm integrates several e cient SAT algorithms. It makes use of di erent algorithmic niches for satisability testing. Based on cost-e ective cluster computing, Multi-SAT can perform simultaneous satis ability testing, using several “stones” to shoot one “bird”. The software architecture for Multi-SAT has been designed. A number of software tools have been developed. This software tool kit can support e cient satis ability testing with uncertain problem structure, facilitating multiple tracking of an algorithm structure, and allow a detailed study of the entire problem spectrum. It provides a cost-e ective multi-tool kit for practical satis ability testing. ? 1999 Elsevier Science B.V. All rights reserved.