From: Peter Munch Date: Sat, 21 Sep 2019 10:40:09 +0000 (+0200) Subject: Re-align comments X-Git-Tag: v9.2.0-rc1~1028^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F8783%2Fhead;p=dealii.git Re-align comments --- diff --git a/source/distributed/tria_base.cc b/source/distributed/tria_base.cc index 2bd9435d4f..2caa2acb32 100644 --- a/source/distributed/tria_base.cc +++ b/source/distributed/tria_base.cc @@ -364,21 +364,19 @@ namespace parallel { // 1) collect for each vertex on periodic faces all vertices it coincides // with - std::map> - vertex_to_coinciding_vertices; - { - // 1a) collect nodes coinciding due to periodicity - std::map vertex_to_coinciding_vertex; + std::map> coinciding_vertex_groups; + std::map vertex_to_coinciding_vertex_group; + { static const int lookup_table_2d[2][2] = - // flip: + // flip: { {0, 1}, // false {1, 0} // true }; static const int lookup_table_3d[2][2][2][4] = - // orientation flip rotation + // orientation flip rotation {{{ {0, 2, 1, 3}, // false false false {2, 3, 0, 1} // false false true @@ -397,7 +395,7 @@ namespace parallel }}}; // loop over all periodic face pairs - for (auto pair : this->get_periodic_face_map()) + for (const auto &pair : this->get_periodic_face_map()) { const auto face_a = pair.first.first->face(pair.first.second); const auto face_b = @@ -434,62 +432,46 @@ namespace parallel const auto vertex_a = face_a->vertex_index(i); const auto vertex_b = face_b->vertex_index(j); unsigned int temp = std::min(vertex_a, vertex_b); - { - auto it = vertex_to_coinciding_vertex.find(vertex_a); - if (it != vertex_to_coinciding_vertex.end()) - temp = std::min(temp, it->second); - } - { - auto it = vertex_to_coinciding_vertex.find(vertex_b); - if (it != vertex_to_coinciding_vertex.end()) - temp = std::min(temp, it->second); - } - vertex_to_coinciding_vertex[vertex_a] = temp; - vertex_to_coinciding_vertex[vertex_b] = temp; + + auto it_a = vertex_to_coinciding_vertex_group.find(vertex_a); + if (it_a != vertex_to_coinciding_vertex_group.end()) + temp = std::min(temp, it_a->second); + + auto it_b = vertex_to_coinciding_vertex_group.find(vertex_b); + if (it_b != vertex_to_coinciding_vertex_group.end()) + temp = std::min(temp, it_b->second); + + if (it_a != vertex_to_coinciding_vertex_group.end()) + it_a->second = temp; + else + vertex_to_coinciding_vertex_group[vertex_a] = temp; + + if (it_b != vertex_to_coinciding_vertex_group.end()) + it_b->second = temp; + else + vertex_to_coinciding_vertex_group[vertex_b] = temp; } } // 1b) compress map: let vertices point to the coinciding vertex with // the smallest index - for (auto &p : vertex_to_coinciding_vertex) + for (auto &p : vertex_to_coinciding_vertex_group) { if (p.first == p.second) continue; unsigned int temp = p.second; - while (temp != vertex_to_coinciding_vertex[temp]) - temp = vertex_to_coinciding_vertex[temp]; + while (temp != vertex_to_coinciding_vertex_group[temp]) + temp = vertex_to_coinciding_vertex_group[temp]; p.second = temp; } -#ifdef DEBUG - // check if map is actually compressed - for (auto p : vertex_to_coinciding_vertex) - { - if (p.first == p.second) - continue; - auto pp = vertex_to_coinciding_vertex.find(p.second); - if (pp->first == pp->second) - continue; - AssertThrow(false, ExcMessage("Map has to be compressed!")); - } -#endif - // 1c) create a map: smallest index of coinciding index -> all // coinciding indices - std::map> - smallest_coinciding_vertex_to_coinciding_vertices; - for (auto p : vertex_to_coinciding_vertex) - smallest_coinciding_vertex_to_coinciding_vertices[p.second] = - std::set(); - - for (auto p : vertex_to_coinciding_vertex) - smallest_coinciding_vertex_to_coinciding_vertices[p.second].insert( - p.first); - - // 1d) create a map: vertex -> all coinciding indices - for (auto &s : smallest_coinciding_vertex_to_coinciding_vertices) - for (auto &ss : s.second) - vertex_to_coinciding_vertices[ss] = s.second; + for (auto p : vertex_to_coinciding_vertex_group) + coinciding_vertex_groups[p.second] = {}; + + for (auto p : vertex_to_coinciding_vertex_group) + coinciding_vertex_groups[p.second].push_back(p.first); } // 2) collect vertices belonging to local cells @@ -518,10 +500,12 @@ namespace parallel result[cell->vertex_index(v)].insert(owner); // mark also nodes coinciding due to periodicity - auto coinciding_vertices = - vertex_to_coinciding_vertices.find(cell->vertex_index(v)); - if (coinciding_vertices != vertex_to_coinciding_vertices.end()) - for (auto coinciding_vertex : coinciding_vertices->second) + auto coinciding_vertex_group = + vertex_to_coinciding_vertex_group.find(cell->vertex_index(v)); + if (coinciding_vertex_group != + vertex_to_coinciding_vertex_group.end()) + for (auto coinciding_vertex : + coinciding_vertex_groups[coinciding_vertex_group->second]) if (vertex_of_own_cell[coinciding_vertex]) result[coinciding_vertex].insert(owner); }