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  1. Lucene - Core
  2. LUCENE-7745

Explore GPU acceleration

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    • Improvement
    • Status: Open
    • Major
    • Resolution: Unresolved
    • None
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    • New

    Description

      There are parts of Lucene that can potentially be speeded up if computations were to be offloaded from CPU to the GPU(s). With commodity GPUs having as high as 12GB of high bandwidth RAM, we might be able to leverage GPUs to speed parts of Lucene (indexing, search).

      First that comes to mind is spatial filtering, which is traditionally known to be a good candidate for GPU based speedup (esp. when complex polygons are involved). In the past, Mike McCandless has mentioned that "both initial indexing and merging are CPU/IO intensive, but they are very amenable to soaking up the hardware's concurrency."

      I'm opening this issue as an exploratory task, suitable for a GSoC project. I volunteer to mentor any GSoC student willing to work on this this summer.

      Attachments

        1. gpu-benchmarks.png
          103 kB
          Ishan Chattopadhyaya
        2. TermDisjunctionQuery.java
          11 kB
          Adrien Grand

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            ichattopadhyaya Ishan Chattopadhyaya
            ichattopadhyaya Ishan Chattopadhyaya
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            Dates

              Created:
              Updated: