Andrew Nelson andyfaff
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| import stuff | |
| import multiprocessing | |
| import pickle | |
| from refnx._lib.emcee import EnsembleSampler | |
| nvp = len(objective.varying_parameters()) | |
| with multiprocessing.pool.Pool(processes=None, initializer=stuff.initialiser, initargs=(pickle.dumps(objective),)) as pwl: | |
| sampler = EnsembleSampler(200, nvp, stuff.calculator, pool=pwl) | |
| %time sampler.run_mcmc(fitter.chain[-1], 4000) |
andyfaff
/ cobyqa.ipynb
Created
May 16, 2024 22:33
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andyfaff
/ JAX-reflect
Last active
April 17, 2024 06:28
Patch for basic JAX usage with Objective/ReflectModel/Structure
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| diff --git a/refnx/analysis/objective.py b/refnx/analysis/objective.py | |
| index 9ff56057..c77139ad 100644 | |
| --- a/refnx/analysis/objective.py | |
| +++ b/refnx/analysis/objective.py | |
| @@ -674,8 +674,8 @@ class Objective(BaseObjective): | |
| logl += (y - model) ** 2 / var_y | |
| # nans play havoc | |
| - if np.isnan(logl).any(): | |
| - raise RuntimeError("Objective.logl encountered a NaN.") |
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| Function/S wottpy(r0, d0) | |
| variable r0, d0 | |
| // Paths must be POSIX paths (using /). | |
| // Paths containing spaces or other nonstandard characters | |
| // must be single-quoted. See Apple Techical Note TN2065 for | |
| // more on shell scripting via AppleScript. | |
| string r0s, d0s | |
| r0s = num2str(r0) | |
| d0s = num2str(d0) |
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andyfaff
/ Volume_fraction_calculator.ipynb
Created
May 12, 2023 02:22
Volume fraction profile generator
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andyfaff
/ Simpson_rule_even_points.ipynb
Created
March 28, 2023 03:57
Simpson's rule even number of points
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andyfaff
/ find_adequate_resolution.ipynb
Created
March 17, 2023 01:04
Find an adequate resolution smearing oversample
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andyfaff
/ numba_reflectivity.ipynb
Created
March 9, 2023 22:17
Numba reflectivity kernel investigation
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andyfaff
/ refl1d _version_timings.ipynb
Last active
March 7, 2023 23:59
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