shenfun: 2D example crashes with error

When trying to run the dirichlet_poisson2D.py the following error appears:

$ python3 dirichlet_poisson2D.py 64 legendre
Traceback (most recent call last):
  File "dirichlet_poisson2D.py", line 49, in <module>
    K1 = Basis(N[1], family='F', dtype='d', domain=(-2*np.pi, 2*np.pi))
  File "/home/syesylev/.local/lib/python3.6/site-packages/shenfun/forms/arguments.py", line 84, in Basis
    return B(N, **par)
  File "/home/syesylev/.local/lib/python3.6/site-packages/shenfun/fourier/bases.py", line 332, in __init__
    self.plan((int(padding_factor*N),), (0,), np.float, {})
  File "/home/syesylev/.local/lib/python3.6/site-packages/shenfun/fourier/bases.py", line 277, in plan
    xfftn_fwd = plan_fwd(U, s=s, axes=axis, threads=threads, flags=flags)
  File "/home/syesylev/.local/lib/python3.6/site-packages/mpi4py_fft/fftw/xfftn.py", line 240, in rfftn
    flags, 1.0/M)
  File "/home/syesylev/.local/lib/python3.6/site-packages/mpi4py_fft/fftw/factory.py", line 102, in get_planned_FFT
    assert dtype.upper() in fftlib
AssertionError

An example file is not modified what is the problem?

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 23 (10 by maintainers)

Most upvoted comments

I’ve finally found the problem! It’s very stupid but very hard to debug. There is an Amber14 software installed which comes with its own bundled fftw3 and the LD_LIBRARY_PATH is modified to include it. That is why linking was done with the wrong library. @mikaem thank you very much for your help and patience 😃 shenfun is a great piece of software.

yesint on Feb 26, 2020