From 6cf2e6b42413ec6eb8425e1a73cc550a3f937126 Mon Sep 17 00:00:00 2001
From: ZedongPeng <peng_zedong@126.com>
Date: Mon, 5 Feb 2024 12:35:01 -0500
Subject: [PATCH] rename _solve_rnGDP_subproblem to _solve_GDP_subproblem

---
 pyomo/contrib/gdpopt/ldsda.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/pyomo/contrib/gdpopt/ldsda.py b/pyomo/contrib/gdpopt/ldsda.py
index e4466822dcf..340c46dae2e 100644
--- a/pyomo/contrib/gdpopt/ldsda.py
+++ b/pyomo/contrib/gdpopt/ldsda.py
@@ -106,6 +106,9 @@ def _solve_gdp(self, model, config):
         add_algebraic_variable_list(util_block)
         add_boolean_variable_lists(util_block)
 
+        # We will use the working_model to clone the model and perform
+        # to transform the ordered boolean variables into external integer variables,
+        # fix the disjunctions.
         self.working_model = model.clone()
         # TODO: I don't like the name way, try something else?
         self.working_model_util_block = self.working_model.component(util_block.name)
@@ -135,7 +138,7 @@ def _solve_gdp(self, model, config):
         self.fix_disjunctions_with_external_var(
             self.working_model_util_block, self.current_point
         )
-        _ = self._solve_rnGDP_subproblem(self.working_model, config, 'Initial point')
+        _ = self._solve_GDP_subproblem(self.working_model, config, 'Initial point')
 
         # Main loop
         locally_optimal = False
@@ -152,7 +155,7 @@ def _solve_gdp(self, model, config):
     def any_termination_criterion_met(self, config):
         return self.reached_iteration_limit(config) or self.reached_time_limit(config)
 
-    def _solve_rnGDP_subproblem(self, model, config, search_type):
+    def _solve_GDP_subproblem(self, model, config, search_type):
         subproblem = model.clone()
         TransformationFactory('core.logical_to_linear').apply_to(subproblem)
         TransformationFactory('gdp.bigm').apply_to(subproblem)
@@ -340,7 +343,7 @@ def neighbor_search(self, model, config):
                 self.fix_disjunctions_with_external_var(
                     self.working_model_util_block, neighbor
                 )
-                primal_improved = self._solve_rnGDP_subproblem(
+                primal_improved = self._solve_GDP_subproblem(
                     model, config, 'Neighbor search'
                 )
                 if primal_improved:
@@ -368,7 +371,7 @@ def line_search(self, model, config):
                 self.fix_disjunctions_with_external_var(
                     self.working_model_util_block, next_point
                 )
-                primal_improved = self._solve_rnGDP_subproblem(
+                primal_improved = self._solve_GDP_subproblem(
                     model, config, 'Line search'
                 )
                 if primal_improved: