numpy 2

[casperdcl]

• misc numpy>=2 safety (fixes support numpy v2 #1915)
• test numpy 2.*
• test astra-toolbox 2.*
• bump ccpi-regulariser 25.0.0
• bump tomophantom
  • move from ccpi::tomophantom to httomo::tomophantom?
• bump tigre
• fix odd test failures by moving from conda-forge::astra-toolbox to astra-toolbox::astra-toolbox?
• depends on ccpi-regulariser build with numpy>=2 Remove pinning to numpy versions CCPi-Regularisation-Toolkit#215

unsure about

• CIL/Wrappers/Python/cil/optimisation/algorithms/FISTA.py

  Line 234 in 4b038a7

  return self.f(x) + self.g(x)

• cil.plugins.tigre.Atb

• CIL/Wrappers/Python/cil/optimisation/algorithms/PDHG.py

  Line 516 in 4b038a7

  d1 = f_eval_d + g_eval_d

• CIL/Wrappers/Python/cil/optimisation/algorithms/APGD.py

  Line 285 in 4b038a7

  return self.f(x) + self.g(x)

upstream problems

• test tomophantom with numpy>=2
• test tigre with numpy>=2
• test astra-toolbox=*=cuda* with numpy>=2
• test_CIL_CVXPy -> cvxpy -> scipy:

test_cil_vs_cvxpy_totalvariation_anisotropic (test_CIL_CVXPy.Test_CIL_vs_CVXPy.test_cil_vs_cvxpy_totalvariation_anisotropic) ... 
...
$CONDA_PREFIX/lib/python3.12/site-packages/scipy/sparse/_dia.py:140: UserWarning: result dtype changed due to the removal of value-based promotion from NumPy. Changed from int64 to int32.
  nnz += min(M+k,N)
...
$CONDA_PREFIX/lib/python3.12/site-packages/cvxpy/utilities/coeff_extractor.py:296: UserWarning: result dtype changed due to the removal of value-based promotion from NumPy. Changed from int32 to int64.
  P.row += offset

[paskino]

I'm assuming that all the filters in this file return the same type as the input.

[lauramurgatroyd]

We will try to remove tomophantom dependency TomographicImaging/CIL-Demos#272

[lauramurgatroyd]

For tomophantom, the next step is to test with the latest version on conda:

conda install -c httomo tomophantom

These are the recommended instructions on the readme. It may support numpy 2, we don't know.

If possible we would like to continue to support tomophantom for now, unless their code interface has changed.

If it has changed we will rebuild and release on ccpi channel tomophantom v2.0.0 with numpy 2