ChrisHegarty commented on PR #13351:
URL: https://github.com/apache/lucene/pull/13351#issuecomment-2102304137
There is a problem with `default` - it does not do what you might expect it
to do - it does not enable Panama Vector (unless you prevent C2 from being
disabled). For example:
```
$ ./gradlew :lucene:core:test --tests
TestKnnByteVectorQuery.testVectorEncodingMismatch -Ptests.vectorsize="default"
-Ptests.forceintegervectors=false --info
...
org.apache.lucene.search.TestKnnByteVectorQuery > testVectorEncodingMismatch
STANDARD_ERROR
M5 09, 2024 3:26:42 KANG’AMA
org.apache.lucene.internal.vectorization.VectorizationProvider lookup
WARNING: C2 compiler is disabled; Java vector incubator API can't be
enabled
...
```
The addition of `default` is opportunistic while we are here, but the
fundamental value add of this PR is to add a way to more easily run with the
"real world" vector similarities, which we can do with
`tests.defaultvectorization`. Let's revert the addition of `default`. It's not
adding any real value here.
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