Updated

snudda/simulate/save_network_recording.py

@@ -181,9 +181,10 @@ class SnuddaSaveNetworkRecordings:
 
     # TODO: Add saving of simulation_config file (and experiment_config_file for pair recording)
 
-    def __init__(self, output_file, network_data=None, sample_dt=None):
+    def __init__(self, output_file, network_data=None, sample_dt=None, node_id=0):
 
-        if not self.check_file_available(output_file):
+        # Only do this check on the first node
+        if node_id == 0 and not self.check_file_available(output_file):
             sys.exit(-1)
 
         self.output_file = output_file
@@ -284,7 +285,7 @@ def check_file_available(self, file_name):
                 f = h5py.File(file_name, "w")
                 f.close()
             except BlockingIOError as e:
-                print(f"Unable to create file {file_name}.")
+                print(f"Unable to create file {file_name}. Is some other program using the file?")
                 return False
 
         return True

snudda/simulate/simulate.py

@@ -275,7 +275,7 @@ def __init__(self,
         self.load_network_info(self.network_file)
 
         self.record = SnuddaSaveNetworkRecordings(output_file=self.output_file, network_data=self.network_info,
-                                                  sample_dt=self.sample_dt)
+                                                  sample_dt=self.sample_dt, node_id=node_id)
         self.record.add_unit(data_type="voltage", target_unit="V", conversion_factor=1e-3)
         self.record.add_unit(data_type="synaptic_current", target_unit="A", conversion_factor=1e-9)
         self.record.add_unit(data_type="spikes", target_unit="s", conversion_factor=1e-3)