Github user thunterdb commented on a diff in the pull request: https://github.com/apache/spark/pull/16774#discussion_r101834675 --- Diff: mllib/src/test/scala/org/apache/spark/ml/tuning/CrossValidatorSuite.scala --- @@ -121,6 +121,33 @@ class CrossValidatorSuite } } + test("cross validation with parallel evaluation") { + val lr = new LogisticRegression + val lrParamMaps = new ParamGridBuilder() + .addGrid(lr.regParam, Array(0.001, 1000.0)) + .addGrid(lr.maxIter, Array(0, 3)) + .build() + val eval = new BinaryClassificationEvaluator + val cv = new CrossValidator() + .setEstimator(lr) + .setEstimatorParamMaps(lrParamMaps) + .setEvaluator(eval) + .setNumFolds(2) + .setNumParallelEval(1) + val cvSerialModel = cv.fit(dataset) + cv.setNumParallelEval(2) --- End diff -- this test is not deterministic now. @MLnick , do you know if we have some utilities to retry tests a much of times?
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