Github user debasish83 commented on the pull request:
https://github.com/apache/spark/pull/5005#issuecomment-83126362
On the whole flow I don't see much difference...I merged with jblas and
cleaned the old NNLS from my code...Also I compared on one thread now...
Breeze NNLS:
15/03/18 11:17:03 INFO ALS: solveTime 235.325 ms
15/03/18 11:17:04 INFO ALS: solveTime 78.14 ms
15/03/18 11:17:05 INFO ALS: solveTime 88.11 ms
15/03/18 11:17:05 INFO ALS: solveTime 84.343 ms
15/03/18 11:17:06 INFO ALS: solveTime 51.302 ms
15/03/18 11:17:06 INFO ALS: solveTime 48.379 ms
15/03/18 11:17:07 INFO ALS: solveTime 81.288 ms
15/03/18 11:17:07 INFO ALS: solveTime 92.767 ms
15/03/18 11:17:08 INFO ALS: solveTime 49.701 ms
15/03/18 11:17:08 INFO ALS: solveTime 52.514 ms
Breeze NNLS without iterator overhead:
5/03/18 11:17:03 INFO ALS: innerTime 109.24 ms
15/03/18 11:17:04 INFO ALS: innerTime 45.889 ms
15/03/18 11:17:05 INFO ALS: innerTime 56.078 ms
15/03/18 11:17:05 INFO ALS: innerTime 54.147 ms
15/03/18 11:17:06 INFO ALS: innerTime 38.741 ms
15/03/18 11:17:06 INFO ALS: innerTime 37.043 ms
15/03/18 11:17:07 INFO ALS: innerTime 62.863 ms
15/03/18 11:17:07 INFO ALS: innerTime 72.838 ms
15/03/18 11:17:08 INFO ALS: innerTime 37.869 ms
15/03/18 11:17:08 INFO ALS: innerTime 41.105 ms
mllib NNLS (without jblas):
15/03/18 11:17:39 INFO ALS: solveTime 90.251 ms
15/03/18 11:17:40 INFO ALS: solveTime 63.78 ms
15/03/18 11:17:40 INFO ALS: solveTime 76.739 ms
15/03/18 11:17:41 INFO ALS: solveTime 79.017 ms
15/03/18 11:17:41 INFO ALS: solveTime 47.96 ms
15/03/18 11:17:42 INFO ALS: solveTime 45.903 ms
15/03/18 11:17:43 INFO ALS: solveTime 80.378 ms
15/03/18 11:17:43 INFO ALS: solveTime 92.686 ms
15/03/18 11:17:44 INFO ALS: solveTime 44.478 ms
15/03/18 11:17:44 INFO ALS: solveTime 56.419 ms
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