Enable MKL in SciPy

Enable MKL in SciPy in case of presence of mkl_fft package in the environment

Author: samaid

fft_bench.py

@@ -12,6 +12,13 @@
 import re
 import sys
 
+try: # Workaround for disabled mkl_fft in latest Intel SciPy
+    import mkl_fft
+    import mkl_fft._scipy_fft_backend as sfbn
+    scipy.fft.set_global_backend(sfbn)
+except:
+    print("Unable to use mkl_fft as scipy.fft backend")
+
 # Mark which FFT submodules are available...
 fft_modules = {'numpy.fft': np.fft, 'scipy.fft': scipy.fft}