From: Peter Munch <peterrmuench@gmail.com>
Date: Fri, 6 May 2022 05:51:07 +0000 (+0200)
Subject: Add LinearAlgebra::distributed::BlockVector::set_ghost_state()
X-Git-Tag: v9.4.0-rc1~273^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e086a01f9c64ddbab4f6a15d5d1e737cc925105;p=dealii.git

Add LinearAlgebra::distributed::BlockVector::set_ghost_state()
---

diff --git a/include/deal.II/lac/la_parallel_block_vector.h b/include/deal.II/lac/la_parallel_block_vector.h
index ed6f38500f..0065701ab4 100644
--- a/include/deal.II/lac/la_parallel_block_vector.h
+++ b/include/deal.II/lac/la_parallel_block_vector.h
@@ -361,11 +361,17 @@ namespace LinearAlgebra
       zero_out_ghost_values() const;
 
       /**
-       * Return if this Vector contains ghost elements.
+       * Return if any of the blocks in this vector contains ghost elements.
        */
       bool
       has_ghost_elements() const;
 
+      /**
+       * Change the ghost state of all blocks in this vector to @p ghosted.
+       */
+      void
+      set_ghost_state(const bool ghosted) const;
+
       /**
        * This method copies the data in the locally owned range from another
        * distributed vector @p src into the calling vector. As opposed to
diff --git a/include/deal.II/lac/la_parallel_block_vector.templates.h b/include/deal.II/lac/la_parallel_block_vector.templates.h
index 8583819aef..82eab7f53e 100644
--- a/include/deal.II/lac/la_parallel_block_vector.templates.h
+++ b/include/deal.II/lac/la_parallel_block_vector.templates.h
@@ -421,6 +421,16 @@ namespace LinearAlgebra
 
 
 
+    template <typename Number>
+    void
+    BlockVector<Number>::set_ghost_state(const bool ghosted) const
+    {
+      for (unsigned int block = 0; block < this->n_blocks(); ++block)
+        this->block(block).set_ghost_state(ghosted);
+    }
+
+
+
     template <typename Number>
     void
     BlockVector<Number>::reinit(const VectorSpaceVector<Number> &V,