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  1. Mahout
  2. MAHOUT-1166

Multithreaded version of distributed ALS

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.7
    • Fix Version/s: 0.8
    • Labels:
      None

      Description

      Our implementation of ALS broadcasts the feature matrices in each iteration. Therefore, it makes sense to run the mappers in multithreaded mode to not have to load one copy of the feature matrix per core, but share the read-only in-memory copy.

        Attachments

        1. MAHOUT-1166.patch
          41 kB
          Sebastian Schelter

          Activity

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            • Assignee:
              ssc Sebastian Schelter
              Reporter:
              ssc Sebastian Schelter
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              Dates

              • Created:
                Updated:
                Resolved: