GitHub user feynmanliang opened a pull request:
https://github.com/apache/spark/pull/7166
[SPARK-5016] Distribute GMM mixture components to executors
Distribute expensive portions of computation for Gaussian mixture
components (in particular, pre-computation of
`MultivariateGaussian.rootSigmaInv`, the inverse covariance matrix and
covariance determinant) across executors. Repost of PR#4654.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/feynmanliang/spark GMM_parallel_mixtures
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/7166.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #7166
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commit 1da3c7f609f55d2be3c95d9265d256f6d2dc669f
Author: Feynman Liang <[email protected]>
Date: 2015-06-30T22:58:58Z
Distribute mixtures
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