Why Julia benchmark

[ashwinvis]

Regarding #1, no backends can work suitably as of now... Apart from a transonic parsing issue of numpy.fft subpackage (https://foss.heptapod.net/fluiddyn/transonic/issues/32):

• pythran: misses complex fft and ifft support. Changing to real FFT - which is wrong makes it run without throwing any errors (b8e0e84) which should not have happened - numba and cython detects the size of arrays mismatch. (not reproducible)
• numba: cannot deal with from numpy import * imports. Pythran can handle it though!
• cython: throws a strange error:

 Traceback (most recent call last):
  File "ksbenchmark.py", line 115, in <module>
    ksbenchmark(int(sys.argv[1]), printnorm=True)
  File "ksbenchmark.py", line 36, in ksbenchmark
    u = ksintegrate(u0,Lx,dt, Nt)
  File "/home/avmo/.pyenv/versions/fluiddyn/lib/python3.8/site-packages/transonic/justintime.py", line 363, in type_collector
    backend_module = import_from_path(
  File "/home/avmo/.pyenv/versions/fluiddyn/lib/python3.8/site-packages/transonic/util.py", line 340, in import_from_path
    spec.loader.exec_module(module)
  File "<frozen importlib._bootstrap_external>", line 1109, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "ksintegrate_f448e7c6f0b2bbbb4871b2eaa9eed713_5a2836f0f345d7dbb5ce1e10d750daaa.py", line 1, in init ksintegrate_f448e7c6f0b2bbbb4871b2eaa9eed713_5a2836f0f345d7dbb5ce1e10d750daaa
TypeError: Cannot overwrite C type array