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Posted to dev@mahout.apache.org by "Andrew Palumbo (JIRA)" <ji...@apache.org> on 2017/01/16 02:28:28 UTC

[jira] [Updated] (MAHOUT-1875) Use faster shallowCopy for dense matices in blockify drm/package.blockify(..)

     [ https://issues.apache.org/jira/browse/MAHOUT-1875?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Palumbo updated MAHOUT-1875:
-----------------------------------
    Sprint: Jan/Feb-2017  (was: Jan/Feb-2016)

> Use faster shallowCopy for dense matices in blockify drm/package.blockify(..)
> -----------------------------------------------------------------------------
>
>                 Key: MAHOUT-1875
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1875
>             Project: Mahout
>          Issue Type: Improvement
>    Affects Versions: 0.12.2
>            Reporter: Andrew Palumbo
>            Assignee: Suneel Marthi
>             Fix For: 0.13.0
>
>
> In {{sparkbindings.drm/package.blockify(...)}}, after testing the density of an incoming block, use {{DenseMatrix(blockAsArrayOfDoubles, true)}} to shallow copy the backing vector array into the {{DenseMatrix}}.  



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