Default Provider by Environment Variable? about mathnet-numerics-native

[cuda]

That might work well. Put a static constructor in the Control class to check for the variable. If it doesn't exist, then use the managed provider. Users could still override it in their code. It would simplify testing nicely without using an NUnit extension.

[tibel]

I would prefer to have the environment variable only in the tests.

If it is in Control class, someone can break my Application by changing a users environment variable. The application would become vulnerable.

[cuda]

I disagree. Setting environment variables is an acceptable, standard way to control application behavior.

[cuda]

and to add, an application could always use an app.config file and corresponding code to override the environment variable.

[tibel]

Didn't thought on this. You are right. Should not be a problem.

[cdrnet]

Great, thanks for the feedback!

[cdrnet]

@cuda using environment variables, you no longer need the unit test config file (and corresponding code) then and I can drop it, correct?

[cuda]

Right. We can also drop the mkl wrapper test project from the native wrapper project.