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Parallel Model Counting with CUDA: Algorithm Engineering for Efficient Hardware Utilization

Authors Johannes K. Fichte , Markus Hecher , Valentin Roland

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Author Details

Johannes K. Fichte
  • TU Dresden, Germany
Markus Hecher
  • TU Wien, Austria
  • Universität Potsdam, Germany
Valentin Roland
  • TU Dresden, Germany

Funding

  • Fichte, Johannes K.: Google Fellowship at the Simons Institute, UC Berkeley.
  • Hecher, Markus: FWF Grants Y698 and P32830 and Grant WWTF ICT19-065.

Acknowledgements

Authors are given in alphabetical order. Main work has been carried out while the first two authors were visiting the Simons Institute for the Theory of Computing. The authors gratefully acknowledge the valuable comments made by the anonymous reviewers. In particular, the authors thank Roland Yap for his efforts and feedback on the final version of this paper.

Cite AsGet BibTex

Johannes K. Fichte, Markus Hecher, and Valentin Roland. Parallel Model Counting with CUDA: Algorithm Engineering for Efficient Hardware Utilization. In 27th International Conference on Principles and Practice of Constraint Programming (CP 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 210, pp. 24:1-24:20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)
https://doi.org/10.4230/LIPIcs.CP.2021.24

Abstract

Propositional model counting (MC) and its extensions as well as applications in the area of probabilistic reasoning have received renewed attention in recent years. As a result, also the need for quickly solving counting-based problems with automated solvers is critical for certain areas. In this paper, we present experiments evaluating various techniques in order to improve the performance of parallel model counting on general purpose graphics processing units (GPGPUs). Thereby, we mainly consider engineering efficient algorithms for model counting on GPGPUs that utilize the treewidth of a propositional formula by means of dynamic programming. The combination of our techniques results in the solver GPUSAT3, which is based on the programming framework Cuda that -compared to other frameworks- shows superior extensibility and driver support. When combining all findings of this work, we show that GPUSAT3 not only solves more instances of the recent Model Counting Competition 2020 (MCC 2020) than existing GPGPU-based systems, but also solves those significantly faster. A portfolio with one of the best solvers of MCC 2020 and GPUSAT3 solves 19% more instances than the former alone in less than half of the runtime.

Subject Classification

ACM Subject Classification
  • Theory of computation → Logic
  • Computing methodologies → Massively parallel algorithms
  • Mathematics of computing → Graph algorithms
Keywords
  • Propositional Satisfiability
  • GPGPU
  • Model Counting
  • Treewidth
  • Tree Decomposition

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Supplementary Materials

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