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| author | Fokko Driesprong <f.driesprong@catawiki.nl> | 2016-04-14 17:32:20 -0700 |
|---|---|---|
| committer | Xiangrui Meng <meng@databricks.com> | 2016-04-14 17:32:20 -0700 |
| commit | c80586d9e820d19fc328b3e4c6f1c1439f5583a7 (patch) | |
| tree | 64a8c9380e809885c18a8d30667ddba68f81b533 /docs | |
| parent | 01dd1f5c07f5c9ba91389c1556f911b028475cd3 (diff) | |
| download | spark-c80586d9e820d19fc328b3e4c6f1c1439f5583a7.tar.gz spark-c80586d9e820d19fc328b3e4c6f1c1439f5583a7.tar.bz2 spark-c80586d9e820d19fc328b3e4c6f1c1439f5583a7.zip | |
[SPARK-12869] Implemented an improved version of the toIndexedRowMatrix
Hi guys,
I've implemented an improved version of the `toIndexedRowMatrix` function on the `BlockMatrix`. I needed this for a project, but would like to share it with the rest of the community. In the case of dense matrices, it can increase performance up to 19 times:
https://github.com/Fokko/BlockMatrixToIndexedRowMatrix
If there are any questions or suggestions, please let me know. Keep up the good work! Cheers.
Author: Fokko Driesprong <f.driesprong@catawiki.nl>
Author: Fokko Driesprong <fokko@driesprongen.nl>
Closes #10839 from Fokko/master.
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