Github user debasish83 commented on the pull request: https://github.com/apache/spark/pull/5005#issuecomment-87276063 Updated the PR with breeze 0.11.2...Except first iteration, rest of them are at par: Breeze NNLS: TUSCA09LMLVT00C:spark-brznnls v606014$ grep solveTime ./work/app-20150328110507-0003/0/stderr 15/03/28 11:05:16 INFO ALS: solveTime 228.358 ms 15/03/28 11:05:16 INFO ALS: solveTime 80.773 ms 15/03/28 11:05:17 INFO ALS: solveTime 96.837 ms 15/03/28 11:05:17 INFO ALS: solveTime 92.252 ms 15/03/28 11:05:18 INFO ALS: solveTime 55.923 ms 15/03/28 11:05:18 INFO ALS: solveTime 53.503 ms 15/03/28 11:05:19 INFO ALS: solveTime 96.827 ms 15/03/28 11:05:20 INFO ALS: solveTime 99.835 ms 15/03/28 11:05:20 INFO ALS: solveTime 56.032 ms 15/03/28 11:05:21 INFO ALS: solveTime 55.832 ms mllib NNLS: TUSCA09LMLVT00C:spark-brznnls v606014$ grep solveTime ./work/app-20150328110532-0004/0/stderr 15/03/28 11:05:41 INFO ALS: solveTime 92.086 ms 15/03/28 11:05:41 INFO ALS: solveTime 59.103 ms 15/03/28 11:05:42 INFO ALS: solveTime 80.177 ms 15/03/28 11:05:42 INFO ALS: solveTime 78.755 ms 15/03/28 11:05:43 INFO ALS: solveTime 51.966 ms 15/03/28 11:05:43 INFO ALS: solveTime 46.426 ms 15/03/28 11:05:44 INFO ALS: solveTime 93.656 ms 15/03/28 11:05:44 INFO ALS: solveTime 84.458 ms 15/03/28 11:05:45 INFO ALS: solveTime 49.22 ms 15/03/28 11:05:45 INFO ALS: solveTime 45.626 ms export solver=mllib runs the mllib NNLS...I will wait for the feedbacks...
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