Academic
Publications
PSATO: a Distributed Propositional Prover and its Application to Quasigroup Problems

PSATO: a Distributed Propositional Prover and its Application to Quasigroup Problems,10.1006/jsco.1996.0030,Journal of Symbolic Computation,Hantao Zha

PSATO: a Distributed Propositional Prover and its Application to Quasigroup Problems   (Citations: 97)
BibTex | RIS | RefWorks Download
We present a distributed/parallel prover for propositional satisfiability (SAT), called PSATO, for networks of workstations. PSATO is based on the sequential SAT prover SATO, which is an efficient implementation of the Davis-Putnam algorithm. The master- slave model is used for communication. A simple and effective workload balancing method distributes the workload among workstations. A key property of our method is that the concurrent processes explore disjoint portions of the search space. In this way, we use parallelism without introducing redundant search. Our approach provides solutions to the problems of (i) cumulating intermediate results of separate runs of rea- soning programs; (ii) designing highly scalable parallel algorithms and (iii) supporting "fault-tolerant" distributed computing. Several dozens of open problems in the study of quasigroups have been solved using PSATO. We also show how a useful technique called the cyclic group construction has been coded in propositional logic.
Journal: Journal of Symbolic Computation - JSC , vol. 21, no. 4, pp. 543-560, 1996
Cumulative Annual
View Publication
The following links allow you to view full publications. These links are maintained by other sources not affiliated with Microsoft Academic Search.
Sort by: