Xiangrui Meng created SPARK-8519:
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Summary: Blockify distance computation in k-means
Key: SPARK-8519
URL: https://issues.apache.org/jira/browse/SPARK-8519
Project: Spark
Issue Type: Improvement
Components: MLlib
Affects Versions: 1.4.0
Reporter: Xiangrui Meng
The performance of pairwise distance computation in k-means can benefit from
BLAS Level 3 matrix-matrix multiplications. It requires we update the
implementation to use blocks. Even for sparse data, we might be able to see
some performance gain.
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