uschindler commented on issue #12788: URL: https://github.com/apache/lucene/issues/12788#issuecomment-1803537830
Hi, for correct vectorization please make use of the official Lucene framework (add your implementation class' instance for the scalar and the vectorized variant as a separate getter to `VectorizationProvider`). Warning: If you have the wrong Java version, wrong Hotspot version it may be slower. In addition, the use of "max" may need special CPUs. As soon as you have a CPU not supporting this operation, it will be 100 times slower and a scalar variant is better. The problem is also that Lucene tests run with C2 disabled, so vectorization is slow as it is not compiled to machine code. You must run the benchmark outside of Lucene. Ideally implement it in `VectorizationProvider` as a separate class. To benchmark then use the `benchmark-jmh` Gradle module. This will enable vectorization if all is sane. -- 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. To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
