Accelerating data mining with CUDA and OpenMP

Abstract

The widespread availability of multi-core processors and specialized co-processors has generally not been matched by the actual use of parallel software by users. In this work we experimentally verify the simplicity of code parallelization by implementing two kinds of data mining algorithms on two parallel platforms with a view to building upon them in future projects. We use CUDA on a graphics card with 384 CUDA cores and OpenMP on a dual-core machine and record their performance versus the sequential base case with C++ code running on a single processor. We report modest speedups with OpenMP and significant speedups with CUDA as expected. We also observed underutilization of cores implying that results may be improved if the base code is further optimized.