Turn on parallel build for multi use commands

gprMax/grid/mpi_grid.py

@@ -512,13 +512,6 @@ class MPIGrid(FDTDGrid):
         Global properties/objects are broadcast to all ranks whereas
         local properties/objects are scattered to the relevant ranks.
         """
-        self.materials = self.comm.bcast(self.materials, root=self.COORDINATOR_RANK)
-        self.rxs = self.scatter_coord_objects(self.rxs)
-        self.voltagesources = self.scatter_coord_objects(self.voltagesources)
-        self.magneticdipoles = self.scatter_coord_objects(self.magneticdipoles)
-        self.hertziandipoles = self.scatter_coord_objects(self.hertziandipoles)
-        self.transmissionlines = self.scatter_coord_objects(self.transmissionlines)
-
         self.scatter_snapshots()
 
         if not self.is_coordinator():

gprMax/mpi_model.py

@@ -60,16 +60,10 @@ class MPIModel(Model):
         self.G.calculate_local_extents()
 
     def build_geometry(self):
-        self._broadcast_model()
-
         super().build_geometry()
 
         self._filter_geometry_objects()
 
-    def _broadcast_model(self):
-        model_config = config.get_model_config()
-        model_config.materials["maxpoles"] = self.comm.bcast(model_config.materials["maxpoles"])
-
     def _filter_geometry_objects(self):
         objects = self.comm.bcast(self.geometryobjects)
         self.geometryobjects = []

gprMax/scene.py

@@ -175,14 +175,14 @@ class Scene:
         # Process commands that can only have a single instance
         self.process_single_use_objects(model)
 
+        # Process multiple commands
+        self.process_multi_use_objects(model)
+
         if (
             isinstance(model, MPIModel)
             and model.is_coordinator()
             or not isinstance(model, MPIModel)
         ):
-            # Process multiple commands
-            self.process_multi_use_objects(model)
-
             # Initialise geometry arrays for main and subgrids
             for grid in [model.G] + model.subgrids:
                 grid.initialise_geometry_arrays()