[skip ci] Use correct matrix sequence in interface after splitting

python/dune/codegen/sumfact/accumulation.py

@@ -102,6 +102,9 @@ class AccumulationOutput(SumfactKernelInterfaceBase, ImmutableRecord):
                  trial_element_index=None,
                  ):
 
+        # See comment regarding get_keyword_arguments why we assert that matrix_sequence is not None
+        assert matrix_sequence is not None
+
         # Note: The function sumfact_quadrature_permutation_strategy does not
         # work anymore after the visiting process since get_facedir and
         # get_facemod are not well defined. But we need the
@@ -131,6 +134,19 @@ class AccumulationOutput(SumfactKernelInterfaceBase, ImmutableRecord):
     def __repr__(self):
         return ImmutableRecord.__repr__(self)
 
+    def get_keyword_arguments(self):
+        """Get dictionary of keyword arguments needed to initialize this classIFIERS
+
+        Extract keyword arguments from the ImmutableRecord and modify
+        accordingly. You need to set the correct matrix sequence before using
+        this dict to create an interface.
+        """
+        dict = self.get_copy_kwargs()
+        del dict['_cost_permutation']
+        del dict['_quadrature_permutation']
+        dict['matrix_sequence'] = None
+        return dict
+
     @property
     def quadrature_permutation(self):
         return self._quadrature_permutation

python/dune/codegen/sumfact/basis.py

@@ -94,6 +94,19 @@ class LFSSumfactKernelInput(SumfactKernelInterfaceBase, ImmutableRecord):
     def __str__(self):
         return repr(self)
 
+    def get_keyword_arguments(self):
+        """Get dictionary of keyword arguments needed to initialize this classIFIERS
+
+        Extract keyword arguments from the ImmutableRecord and modify
+        accordingly. You need to set the correct matrix sequence before using
+        this dict to create an interface.
+        """
+        dict = self.get_copy_kwargs()
+        del dict['_cost_permutation']
+        del dict['_quadrature_permutation']
+        dict['matrix_sequence'] = None
+        return dict
+
     @property
     def quadrature_permutation(self):
         return self._quadrature_permutation

python/dune/codegen/sumfact/geometry.py

@@ -103,6 +103,19 @@ class GeoCornersInput(SumfactKernelInterfaceBase, ImmutableRecord):
     def __str__(self):
         return repr(self)
 
+    def get_keyword_arguments(self):
+        """Get dictionary of keyword arguments needed to initialize this classIFIERS
+
+        Extract keyword arguments from the ImmutableRecord and modify
+        accordingly. You need to set the correct matrix sequence before using
+        this dict to create an interface.
+        """
+        dict = self.get_copy_kwargs()
+        del dict['_cost_permutation']
+        del dict['_quadrature_permutation']
+        dict['matrix_sequence'] = None
+        return dict
+
     @property
     def quadrature_permutation(self):
         return self._quadrature_permutation

python/dune/codegen/sumfact/vectorization.py

@@ -459,7 +459,12 @@ def get_vectorization_dict(sumfacts, vertical, horizontal, qp):
             seq = list(sf.matrix_sequence_quadrature_permuted)
             seq[slice_direction] = oldtab.copy(slice_size=vertical,
                                                slice_index=i)
-            kernels.append(sf.copy(matrix_sequence=tuple(seq)))
+
+            # Create new sf kernel with new interface
+            kwargs = sf.interface.get_keyword_arguments()
+            kwargs.update({'matrix_sequence': tuple(seq)})
+            newinterface = type(sf.interface)(**kwargs)
+            kernels.append(sf.copy(matrix_sequence=tuple(seq), interface=newinterface))
 
     # Join the new kernels into a sum factorization node
     buffer = get_counted_variable("joined_buffer")