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GEOPY-2193: DC 2D inversion does not honour cooling schedule #87

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Merged
domfournier merged 2 commits into from
May 17, 2025
Merged

GEOPY-2193: DC 2D inversion does not honour cooling schedule #87

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f6e8edc
Fix beta cooling in IRLS
jcapriot Apr 29, 2025
e4f090e
Reduce indentation
domfournier May 16, 2025
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17 changes: 9 additions & 8 deletions simpeg/directives/_regularization.py
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Original file line number Diff line number Diff line change
Expand Up @@ -229,19 +229,20 @@ def adjust_cooling_schedule(self):
"""
Adjust the cooling schedule based on the misfit.
"""
ratio = self.invProb.phi_d / self.misfit_from_chi_factor(self.chifact_target)
if self.metrics.start_irls_iter is None:
return

if (
np.abs(1.0 - ratio) > self.misfit_tolerance
and self.metrics.start_irls_iter is not None
):
ratio = self.invProb.phi_d / self.misfit_from_chi_factor(self.chifact_target)
if np.abs(1.0 - ratio) > self.misfit_tolerance:

if ratio > 1:
ratio = np.mean([2.0, ratio])
update_ratio = 1 / np.mean([0.75, 1 / ratio])
else:
ratio = np.mean([0.75, ratio])
update_ratio = 1 / np.mean([2.0, 1 / ratio])

self.cooling_factor = ratio
self.cooling_factor = update_ratio
else:
self.cooling_factor = 1.0

def initialize(self):
"""
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