Mathias,
this patch seems to work:
diff --git a/source/lac/trilinos_sparsity_pattern.cc
b/source/lac/trilinos_sparsity_pattern.cc
index 84403175c6..c448279505 100644
--- a/source/lac/trilinos_sparsity_pattern.cc
+++ b/source/lac/trilinos_sparsity_pattern.cc
@@ -791,7 +791,8 @@ namespace TrilinosWrappers
if (nonlocal_graph.get() != nullptr)
{
if (nonlocal_graph->IndicesAreGlobal() == false &&
- nonlocal_graph->RowMap().NumMyElements() > 0)
+ nonlocal_graph->RowMap().NumMyElements() > 0 &&
+ column_space_map->NumMyElements() > 0)
{
// Insert dummy element at (row, column) that corresponds to
row 0
// in local index counting.
@@ -813,6 +814,7 @@ namespace TrilinosWrappers
AssertThrow(ierr == 0, ExcTrilinosError(ierr));
}
Assert(nonlocal_graph->RowMap().NumMyElements() == 0 ||
+ column_space_map->NumMyElements() == 0 ||
nonlocal_graph->IndicesAreGlobal() == true,
ExcInternalError());
Still needs some testing, though.
Can you give it a a shot?
Best,
Daniel
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