Merge pull request #12664 from drwells/unghost-matrix-diagonals

Unghost matrix diagonals
dealii · May 19, 2022 · 4d58051 · 4d58051
2 parents 8e1d23a + 6652d67
commit 4d58051
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diff --git a/doc/news/changes/incompatibilities/20210817DavidWells b/doc/news/changes/incompatibilities/20210817DavidWells
@@ -0,0 +1,4 @@
+Changed: The DiagonalMatrix objects set up by MatrixFreeOperators::Base and
+its inheriting classes no set ghost entries.
+<br>
+(David Wells, 2021/08/17)
diff --git a/include/deal.II/matrix_free/operators.h b/include/deal.II/matrix_free/operators.h
@@ -1909,8 +1909,7 @@ namespace MatrixFreeOperators
           1. / inverse_diagonal_vector.local_element(i);
       }
 
-    inverse_diagonal_vector.update_ghost_values();
-    diagonal_vector.update_ghost_values();
+    // We never need ghost values so don't update them
   }
 
 
@@ -2206,8 +2205,7 @@ namespace MatrixFreeOperators
       else
         inverse_diagonal_vector.local_element(i) = 1.;
 
-    inverse_diagonal_vector.update_ghost_values();
-    diagonal_vector.update_ghost_values();
+    // We never need ghost values so don't update them
   }