Reconfigurable Accelerators for Combinatorial Problems

  • Authors:
  • Marco Platzner

  • Affiliations:
  • -

  • Venue:
  • Computer
  • Year:
  • 2000

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Abstract

Reconfigurable accelerators can improve process time on combinatorial problems with fine-grained parallelism. Such problems contain a huge number of logical operations (NOT, AND, and OR) that can evaluate simultaneously, a characteristic that varies considerably from problem to problem. Because of this variability, such combinatorial problems are approached using instance-specific reconfiguration--hardware tailored to a specific algorithm and a specific set of input data.Boolean satisfiability (SAT for short) is a common combinatorial problem that exhibits fine-grained parallelism. SAT varies considerably based on the situation. Its solution is thus an ideal candidate for improvements based on instance-specific reconfiguration. In fact, simulations of an instance-specific accelerator show potential speed-ups by a factor of up to 140,000 in execution time over the solution by a software solver. The authors detail the results of their prototype that leads to an order of magnitude speedup in the execution of difficult satisfiability problems.