running error for Marmousi model

[acse-yw11823]

Hello, I need to download the Meshes and associated velocity models from here. And for the 2D FWI, the guess meshes are generated by running the Python script make_guess_meshes.py which uses the Python package SeismicMesh. I meet the following error when I running make_guess_meshes.py :

(firedrake) (base) yw11823@IC-FVFL80FW1WGC FWI_2D_DATA % pyth
on make_guess_problem.py 
Traceback (most recent call last):
  File "/Users/yw11823/ACSE/irp/spyro/FWI_2D_DATA/make_guess_problem.py", line 14, in <module>
    ef = get_sizing_function_from_segy(
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/yw11823/ACSE/irp/firedrake/lib/python3.11/site-packages/SeismicMesh/sizing/mesh_size_function.py", line 135, in get_sizing_function_from_segy
    vp, nz, nx, ny = read_velocity_model(
                     ^^^^^^^^^^^^^^^^^^^^
  File "/Users/yw11823/ACSE/irp/firedrake/lib/python3.11/site-packages/SeismicMesh/sizing/mesh_size_function.py", line 602, in read_velocity_model
    return _read_segy(filename)
           ^^^^^^^^^^^^^^^^^^^^
  File "/Users/yw11823/ACSE/irp/firedrake/lib/python3.11/site-packages/SeismicMesh/sizing/mesh_size_function.py", line 637, in _read_segy
    with segyio.open(filename, ignore_geometry=True) as f:
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/yw11823/ACSE/irp/firedrake/lib/python3.11/site-packages/segyio/open.py", line 162, in open
    fd = _segyio.segyiofd(str(filename), mode, endians[endian])
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
FileNotFoundError: [Errno 2] No such file or directory

I could not find vp_guess4.segy from anywhere. Does anyone have any clue??

Many thanks for the help!!!

[connorjward]

I recommend getting in touch with the code author and asking them. This isn't really a problem with Firedrake itself. Sorry we can't be more help.

[Ig-dolci]

This issue is not related to Firedrake and is being addressed here.