skip unused domain

Author: pbrubeck

tsfc/kernel_interface/common.py

@@ -57,7 +57,6 @@ def coefficient(self, ufl_coefficient, restriction):
         expressions."""
         kernel_arg = self.coefficient_map[ufl_coefficient]
         domain = extract_unique_domain(ufl_coefficient)
-        assert self._domain_integral_type_map[domain] is not None
         if ufl_coefficient.ufl_element().family() == 'Real':
             return kernel_arg
         elif not self._domain_integral_type_map[domain].startswith("interior_facet"):
@@ -505,12 +504,13 @@ def prepare_coefficient(coefficient, name, domain_integral_type_map):
     shape = finat_element.index_shape
     size = numpy.prod(shape, dtype=int)
     domain = extract_unique_domain(coefficient)
-    integral_type = domain_integral_type_map[domain]
-    if integral_type is None:
+    try:
+        integral_type = domain_integral_type_map[domain]
+    except KeyError:
         # This means that this coefficient does not exist in the DAG,
         # so corresponding gem expression will never be needed.
-        expression = None
-    elif integral_type.startswith("interior_facet"):
+        return None
+    if integral_type.startswith("interior_facet"):
         varexp = gem.Variable(name, (2 * size,))
         plus = gem.view(varexp, slice(size))
         minus = gem.view(varexp, slice(size, 2 * size))

tsfc/kernel_interface/firedrake_loopy.py

@@ -127,11 +127,12 @@ def set_cell_orientations(self, domains):
         # Cell orientation
         self._cell_orientations = {}
         for i, domain in enumerate(domains):
-            integral_type = self._domain_integral_type_map[domain]
-            if integral_type is None:
-                # See comment in prepare_coefficient.
-                self._cell_orientations[domain] = None
-            elif integral_type.startswith("interior_facet"):
+            try:
+                integral_type = self._domain_integral_type_map[domain]
+            except KeyError:
+                # skip unused domain
+                continue
+            if integral_type.startswith("interior_facet"):
                 cell_orientations = gem.Variable(f"cell_orientations_{i}", (2,), dtype=gem.uint_type)
                 self._cell_orientations[domain] = (gem.Indexed(cell_orientations, (0,)),
                                                    gem.Indexed(cell_orientations, (1,)))
@@ -157,6 +158,11 @@ def set_cell_sizes(self, domains):
         """
         self._cell_sizes = {}
         for i, domain in enumerate(domains):
+            try:
+                integral_type = self._domain_integral_type_map[domain]
+            except KeyError:
+                # skip unused domain
+                continue
             if domain.ufl_cell().topological_dimension > 0:
                 # Can't create P1 since only P0 is a valid finite element if
                 # topological_dimension is 0 and the concept of "cell size"
@@ -326,13 +332,13 @@ def set_entity_numbers(self, domains):
         self._entity_numbers = {}
         self._entity_ids = {}
         for i, domain in enumerate(domains):
+            try:
+                integral_type = self.integral_data_info.domain_integral_type_map[domain]
+            except KeyError:
+                # skip unused domain
+                continue
             fiat_cell = as_fiat_cell(domain.ufl_cell())
-            integral_type = self.integral_data_info.domain_integral_type_map[domain]
-            if integral_type is None:
-                # Set placeholder for unused domain.
-                entity_ids = None
-            else:
-                _, entity_ids = lower_integral_type(fiat_cell, integral_type)
+            _, entity_ids = lower_integral_type(fiat_cell, integral_type)
             self._entity_ids[domain] = entity_ids
             if integral_type in ['exterior_facet', 'exterior_facet_vert']:
                 facet = gem.Variable(f'facet_{i}', (1,), dtype=gem.uint_type)
@@ -359,7 +365,11 @@ def set_entity_orientations(self, domains):
         """
         self._entity_orientations = {}
         for i, domain in enumerate(domains):
-            integral_type = self.integral_data_info.domain_integral_type_map[domain]
+            try:
+                integral_type = self.integral_data_info.domain_integral_type_map[domain]
+            except KeyError:
+                # skip unused domain
+                continue
             variable_name = f"entity_orientations_{i}"
             if integral_type in ['exterior_facet', 'exterior_facet_vert']:
                 o = gem.Variable(variable_name, (1,), dtype=gem.uint_type)