During initial flux-only fitting (forced phot), use Ceres optimizer, …

…not the DenseConstrainedOptimizer we use elsewhere.
legacysurvey · Sep 3, 2020 · b2b6499 · b2b6499
1 parent 6e63294
commit b2b6499
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/py/legacypipe/oneblob.py b/py/legacypipe/oneblob.py
@@ -1772,6 +1772,9 @@ def _fit_fluxes(self, cat, tims, bands, fitcat=None):
             # Images for this band
             btims = [tim for tim in tims if tim.band == b]
             btr = self.tractor(btims, fitcat)
+            ceres_block = 8
+            from tractor.ceres_optimizer import CeresOptimizer
+            btr.optimizer = CeresOptimizer(BW=ceres_block, BH=ceres_block)
             btr.optimize_forced_photometry(shared_params=False, wantims=False)
         for src in fitcat:
             src.thawAllParams()