add warm_start_fixed_nlp config

ZedongPeng · May 12, 2024 · e04a0e9 · e04a0e9
1 parent 3f58bf6
commit e04a0e9
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Showing 2 changed files with 12 additions and 1 deletion.
diff --git a/pyomo/contrib/mindtpy/algorithm_base_class.py b/pyomo/contrib/mindtpy/algorithm_base_class.py
@@ -2663,7 +2663,10 @@ def initialize_subsolvers(self):
         set_solver_mipgap(self.mip_opt, config.mip_solver, config)
 
         set_solver_constraint_violation_tolerance(
-            self.nlp_opt, config.nlp_solver, config
+            self.nlp_opt,
+            config.nlp_solver,
+            config,
+            warm_start=config.warm_start_fixed_nlp,
         )
         set_solver_constraint_violation_tolerance(
             self.feasibility_nlp_opt, config.nlp_solver, config, warm_start=False

diff --git a/pyomo/contrib/mindtpy/config_options.py b/pyomo/contrib/mindtpy/config_options.py
@@ -647,6 +647,14 @@ def _add_subsolver_configs(CONFIG):
             doc='Which MIP subsolver is going to be used for solving the regularization problem.',
         ),
     )
+    CONFIG.declare(
+        'warm_start_fixed_nlp',
+        ConfigValue(
+            default=True,
+            description='whether to warm start the fixed NLP subproblem.',
+            domain=bool,
+        ),
+    )
 
 
 def _add_tolerance_configs(CONFIG):