From: Peter Munch <peterrmuench@gmail.com>
Date: Tue, 10 Nov 2020 16:23:15 +0000 (+0100)
Subject: Fix fe_face_evaluation_process_and_io for multiple components
X-Git-Tag: v9.3.0-rc1~921^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F11157%2Fhead;p=dealii.git

Fix fe_face_evaluation_process_and_io for multiple components
---

diff --git a/include/deal.II/matrix_free/evaluation_kernels.h b/include/deal.II/matrix_free/evaluation_kernels.h
index 67e437b511..eb9c18af22 100644
--- a/include/deal.II/matrix_free/evaluation_kernels.h
+++ b/include/deal.II/matrix_free/evaluation_kernels.h
@@ -3024,7 +3024,9 @@ namespace internal
                                   [cell * VectorizedArrayType::size() + v];
                               vector_ptrs[v] = const_cast<Number *>(
                                 sm_ptr->operator[](temp.first).data() +
-                                temp.second);
+                                temp.second + comp * static_dofs_per_component +
+                                dof_info.component_dof_indices_offset
+                                  [active_fe_index][first_selected_component]);
                             }
                       }
                     else if (n_face_orientations == VectorizedArrayType::size())
@@ -3049,7 +3051,11 @@ namespace internal
                                       [dof_access_index][cells[v]];
                                   vector_ptrs[v] = const_cast<Number *>(
                                     sm_ptr->operator[](temp.first).data() +
-                                    temp.second);
+                                    temp.second +
+                                    comp * static_dofs_per_component +
+                                    dof_info.component_dof_indices_offset
+                                      [active_fe_index]
+                                      [first_selected_component]);
                                 }
                             }
                       }