Initialize experiment along with simulator

src/ert/storage/local_storage.py

@@ -148,6 +148,14 @@ def refresh(self) -> None:
         self._ensembles = self._load_ensembles()
         self._experiments = self._load_experiments()
 
+    def load_experiment(self, uuid: UUID) -> LocalExperiment:
+        if uuid not in self._experiments:
+            self._experiments[uuid] = LocalExperiment(
+                self, self._experiment_path(uuid), self.mode
+            )
+
+        return self._experiments[uuid]
+
     def get_experiment(self, uuid: UUID) -> LocalExperiment:
         """
         Retrieves an experiment by UUID.

src/everest/simulator/simulator.py

@@ -51,6 +51,15 @@ def __init__(self, ever_config: EverestConfig, callback=None) -> None:
         if ever_config.simulator is not None and ever_config.simulator.enable_cache:
             self._cache = _SimulatorCache()
 
+        with open_storage(ert_config.ens_path, "w") as storage:
+            experiment = storage.create_experiment(
+                name=f"EnOpt@{datetime.now().strftime('%Y-%m-%d@%H:%M:%S')}",
+                parameters=ert_config.ensemble_config.parameter_configuration,
+                responses=ert_config.ensemble_config.response_configuration,
+            )
+
+            self._experiment_id = experiment.id
+
     def _get_controls(self, ever_config: EverestConfig) -> List[str]:
         controls = ever_config.controls or []
         return [control.name for control in controls]
@@ -119,16 +128,7 @@ def __call__(
                 case_data.append((real_id, controls))
 
         with open_storage(self.ert_config.ens_path, "w") as storage:
-            if self._experiment_id is None:
-                experiment = storage.create_experiment(
-                    name=f"EnOpt@{datetime.now().strftime('%Y-%m-%d@%H:%M:%S')}",
-                    parameters=self.ert_config.ensemble_config.parameter_configuration,
-                    responses=self.ert_config.ensemble_config.response_configuration,
-                )
-
-                self._experiment_id = experiment.id
-            else:
-                experiment = storage.get_experiment(self._experiment_id)
+            experiment = storage.load_experiment(self._experiment_id)
 
             sim_context = self.start(f"batch_{self._batch}", case_data, experiment)