zhengruifeng opened a new pull request #27473: URL: https://github.com/apache/spark/pull/27473
### What changes were proposed in this pull request? 1, add Level-2 BLAS routine `ger`; 2, stack input vectors to blocks to use Level-3 BLAS routine in training ### Why are the changes needed? for performance: 1, save about 40% RAM; 2, 25% ~ 60% faster; 30% ~ 60% faster with openBLAS ### Does this PR introduce any user-facing change? add a new expert param `blockSize` ### How was this patch tested? added testsuites ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
