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Posted to dev@mahout.apache.org by "Trevor Grant (JIRA)" <ji...@apache.org> on 2017/02/01 02:33:52 UTC

[jira] [Created] (MAHOUT-1922) DSPCA Propagates cache hint

Trevor Grant created MAHOUT-1922:
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             Summary: DSPCA Propagates cache hint
                 Key: MAHOUT-1922
                 URL: https://issues.apache.org/jira/browse/MAHOUT-1922
             Project: Mahout
          Issue Type: Improvement
          Components: Math
    Affects Versions: 0.13.0
            Reporter: Trevor Grant
            Priority: Minor


The DSPCA does lots of check pointing, but currently only the default checkpoint cacheHint is given.

The user should be able to pass a checkpointing hint as this can lead to dramatic performance issues in some cases.

https://github.com/apache/mahout/blob/master/math-scala/src/main/scala/org/apache/mahout/math/decompositions/DSPCA.scala



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