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  1. Spark
  2. SPARK-16469

Long running Driver task while multiplying big matrices

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 2.0.0
    • Fix Version/s: 2.0.0
    • Component/s: MLlib
    • Labels:
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      Description

      We have a use case of multiplying very big sparse matrices. we have about 1000x1000 distributed block matrices multiplication and the simulate multiply goes like O(n^4) (n being 1000). it takes about 1.5 hours. We modified it slightly with classical hashmap and now run in about 30 seconds O(n^2).

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            • Assignee:
              uzadude Ohad Raviv
              Reporter:
              uzadude Ohad Raviv
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              • Created:
                Updated:
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