OpenCL RepeatedKernelRetrieval warning

[pkienzle]

I'm seeing the following warning when running pytest on mac:

sasmodels/direct_model.py::test_simple_interface
  .../sasmodels/kernelcl.py:469: RepeatedKernelRetrieval: Kernel 'sphere_Iq' has been retrieved more than once. Each retrieval creates a new, independent kernel, at possibly considerable expense. To avoid the expense, reuse the retrieved kernel instance. To avoid this warning, use cl.Kernel(prg, name).
    functions = [getattr(program, k) for k in names]

I've also seen it when running bumps webview and reloading the model.

I don't know if it is triggered by sasview