V 0.5.1 doesn't work in Conda on Intel MacBook

installation
1

I installed FEniCSx on my Intel MacBook using Conda. V 0.5.0 worked just fine. I tried moving on to 0.5.1 but it doesn’t seem to work.

import dolfinx
print(f"DOLFINx version: {dolfinx.__version__} based on GIT commit: {dolfinx.git_commit_hash} of https://github.com/FEniCS/dolfinx/")

from mpi4py import MPI
from dolfinx import mesh
domain = mesh.create_unit_square(MPI.COMM_WORLD, 8, 8, mesh.CellType.quadrilateral)

from dolfinx.fem import FunctionSpace
V = FunctionSpace(domain, ("CG", 1))

print("No Errors")

The error I’m getting is:

DOLFINx version: 0.5.1 based on GIT commit:  of https://github.com/FEniCS/dolfinx/
Traceback (most recent call last):
  File "/opt/anaconda3/envs/fenicsx-0.5.1/lib/python3.9/site-packages/ffcx/codegeneration/jit.py", line 65, in get_cached_module
    open(c_filename, "x")
FileExistsError: [Errno 17] File exists: '/Users/varunkumar/.cache/fenics/libffcx_elements_bc4d96cb344a1e394b6c4f7eb06e35f03dda42eb.c'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/varunkumar/Documents/FEniCSx Codes/FEniCSx v0.5.1/testx.py", line 9, in <module>
    V = FunctionSpace(domain, ("CG", 1))
  File "/opt/anaconda3/envs/fenicsx-0.5.1/lib/python3.9/site-packages/dolfinx/fem/function.py", line 457, in __init__
    (self._ufcx_element, self._ufcx_dofmap), module, code = jit.ffcx_jit(
  File "/opt/anaconda3/envs/fenicsx-0.5.1/lib/python3.9/site-packages/dolfinx/jit.py", line 56, in mpi_jit
    return local_jit(*args, **kwargs)
  File "/opt/anaconda3/envs/fenicsx-0.5.1/lib/python3.9/site-packages/dolfinx/jit.py", line 206, in ffcx_jit
    r = ffcx.codegeneration.jit.compile_elements([ufl_object], parameters=p_ffcx, **p_jit)
  File "/opt/anaconda3/envs/fenicsx-0.5.1/lib/python3.9/site-packages/ffcx/codegeneration/jit.py", line 110, in compile_elements
    obj, mod = get_cached_module(module_name, names, cache_dir, timeout)
  File "/opt/anaconda3/envs/fenicsx-0.5.1/lib/python3.9/site-packages/ffcx/codegeneration/jit.py", line 78, in get_cached_module
    raise ModuleNotFoundError("Unable to find JIT module.")
ModuleNotFoundError: Unable to find JIT module.

Could this be because I have both V 0.5.0 and V 0.5.1 on 2 different environments in the same system? I did not want to risk it and delete V 0.5.0 from my system.

2

It is probably because you are using the same cache directory for both installations.
Consider deleting the files in

or explicitly set another cache dir, as for instance done in
https://jorgensd.github.io/dolfinx-tutorial/chapter4/compiler_parameters.html#jit-parameters-and-visualization-using-pandas

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