diff --git a/meshmode/discretization/connection/__init__.py b/meshmode/discretization/connection/__init__.py index fcb6cc6983bc1d08cb8e2878ccc5b748c3e4b573..c4881c4f366619b4484156ae740cca3728ddc590 100644 --- a/meshmode/discretization/connection/__init__.py +++ b/meshmode/discretization/connection/__init__.py @@ -371,9 +371,11 @@ class DiscretizationConnection(object): if vec.shape != (self.from_discr.nnodes,): raise ValueError("invalid shape of incoming resampling data") - for i_tgrp, (tgrp, sgrp, cgrp) in enumerate( - zip(self.to_discr.groups, self.from_discr.groups, self.groups)): + for i_tgrp, (tgrp, cgrp) in enumerate( + zip(self.to_discr.groups, self.groups)): for i_batch, batch in enumerate(cgrp.batches): + sgrp = self.from_discr.groups[batch.from_group_index] + if not len(batch.from_element_indices): continue