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| author | DB Tsai <dbtsai@alpinenow.com> | 2014-12-03 22:31:39 +0800 |
|---|---|---|
| committer | Xiangrui Meng <meng@databricks.com> | 2014-12-03 22:31:39 +0800 |
| commit | d00542987ed80635782dcc826fc0bdbf434fff10 (patch) | |
| tree | 587fc5c7cfc8756beccc55b25eb63006f2e0457c /docs/running-on-yarn.md | |
| parent | 7fc49ed91168999d24ae7b4cc46fbb4ec87febc1 (diff) | |
| download | spark-d00542987ed80635782dcc826fc0bdbf434fff10.tar.gz spark-d00542987ed80635782dcc826fc0bdbf434fff10.tar.bz2 spark-d00542987ed80635782dcc826fc0bdbf434fff10.zip | |
[SPARK-4717][MLlib] Optimize BLAS library to avoid de-reference multiple times in loop
Have a local reference to `values` and `indices` array in the `Vector` object
so JVM can locate the value with one operation call. See `SPARK-4581`
for similar optimization, and the bytecode analysis.
Author: DB Tsai <dbtsai@alpinenow.com>
Closes #3577 from dbtsai/blasopt and squashes the following commits:
62d38c4 [DB Tsai] formating
0316cef [DB Tsai] first commit
Diffstat (limited to 'docs/running-on-yarn.md')
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