Predict and Scoring Bug in sklearnex.svm.SVR and Train_test_split index bug

[nilslacroix]

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Describe the bug When I use train_test_split the indeces are shuffled sometimes, sometimes not. Also if you use the scoring method of an SVR estimator multiple times in a row with the same estimator and the same parameters, it can produce different scores.

To Reproduce well you should be able to write a simple reproducer yourself, since this occurs frequently.

Expected behavior No bugs.

Environment:

• Windows 10
• Anaconda

[nilslacroix]

sklearnex.svm.SVR is also buggy. Using .predict() on the same X_test set in a pipeline with preprocessors and encoders yiels different predictions. Just do it like ~50 times in a row and you will see what I mean.

This is also reproducible with basic examples like:

https://intel.github.io/scikit-learn-intelex/samples/nusvr_medical_charges.html

Maybe this happens because I use AMD CPU or something.

[nilslacroix]

I confirmed this bug happens (at least the scoring) when using AMD Hardware. Please at least implement a warning message, which checks the current CPU so people get a notice that this library will only work with intel specific hardware.