zhengruifeng commented on a change in pull request #30810:
URL: https://github.com/apache/spark/pull/30810#discussion_r613713375
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File path: mllib-local/src/main/scala/org/apache/spark/ml/linalg/BLAS.scala
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@@ -18,28 +18,51 @@
package org.apache.spark.ml.linalg
import com.github.fommil.netlib.{BLAS => NetlibBLAS, F2jBLAS}
-import com.github.fommil.netlib.BLAS.{getInstance => NativeBLAS}
/**
* BLAS routines for MLlib's vectors and matrices.
*/
private[spark] object BLAS extends Serializable {
- @transient private var _f2jBLAS: NetlibBLAS = _
+ @transient private var _javaBLAS: NetlibBLAS = _
@transient private var _nativeBLAS: NetlibBLAS = _
private val nativeL1Threshold: Int = 256
Review comment:
according to the performance test, I think we can increase
`nativeL1Threshold` to 512?
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