Fix lfpy evaluator and lfpy test

Author: Jaquier Aurélien Tristan

bluepyopt/tests/test_lfpy.py

@@ -23,7 +23,8 @@ def test_lfpy_evaluator():
     """Test CellEvaluator with an LFPy cell and LFPy simulator"""
 
     evaluator = l5pc_lfpy_evaluator.create(
-        feature_file=L5PC_LFPY_PATH + "/extra_features.json"
+        feature_file=L5PC_LFPY_PATH + "/extra_features.json",
+        cvode_active=False,
     )
 
     responses = evaluator.run_protocols(
@@ -33,5 +34,5 @@ def test_lfpy_evaluator():
     values = evaluator.fitness_calculator.calculate_values(responses)
 
     assert len(values) == 21
-    assert abs(values['Step1.soma.AP_height'] - 28.1141131972856) < 1e-5
+    assert abs(values['Step1.soma.AP_height'] - 27.85963902931001) < 1e-5
     assert len(responses['Step1.MEA.v']["voltage"]) == 40

examples/l5pc_lfpy/l5pc_lfpy_evaluator.py

@@ -135,7 +135,7 @@ def define_fitness_calculator(protocols, feature_file):
     return ephys.objectivescalculators.ObjectivesCalculator(objectives)
 
 
-def create(feature_file="extra_features.json"):
+def create(feature_file="extra_features.json", cvode_active=True):
     """Setup"""
 
     l5pc_cell = l5pc_lfpy_model.create()
@@ -147,7 +147,10 @@ def create(feature_file="extra_features.json"):
         param.name for param in l5pc_cell.params.values() if not param.frozen
     ]
 
-    lfpy_sim = ephys.simulators.LFPySimulator(cvode_active=True)
+    dt=None
+    if cvode_active is False:
+        dt=0.025
+    lfpy_sim = ephys.simulators.LFPySimulator(cvode_active=cvode_active, dt=dt)
 
     return ephys.evaluators.CellEvaluator(
         cell_model=l5pc_cell,