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facet_synchronizer.cc
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			/**
			* @file facet_synchronizer.cc
			*
			* @author Marco Vocialta <marco.vocialta@epfl.ch>
			*
			*
			* @brief Facet synchronizer for parallel simulations with cohesive elments
			*
			* @section LICENSE
			*
			* Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
			* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
			*
			*/
			/* -------------------------------------------------------------------------- */
			#include "facet_synchronizer.hh"
			/* -------------------------------------------------------------------------- */

			namespace akantu {

			/* -------------------------------------------------------------------------- */
			FacetSynchronizer::FacetSynchronizer(
			Mesh & mesh, const ElementSynchronizer & element_synchronizer,
			const ID & id, MemoryID memory_id)
			: ElementSynchronizer(mesh, id, memory_id) {

			const auto & comm = mesh.getCommunicator();
			auto spatial_dimension = mesh.getSpatialDimension();

			element_to_prank.initialize(mesh, _spatial_dimension = spatial_dimension - 1,
			_ghost_type = _ghost, _with_nb_element = true,
			_default_value = rank);

			for (auto && scheme_pair :
			element_synchronizer.communications.iterateSchemes(_recv)) {
			auto proc = std::get<0>(scheme_pair);
			const auto & scheme = std::get<1>(scheme_pair);

			for (auto && elem : scheme) {
			const auto & facet_to_element =
			mesh.getSubelementToElement(elem.type, elem.ghost_type);
			Vector<Element> facets = facet_to_element.begin(
			facet_to_element.getNbComponent())[elem.element];

			for (UInt f = 0; f < facets.size(); ++f) {
			auto & facet = facets(f);
			if (facet == ElementNull)
			continue;

			if (facet.ghost_type == _not_ghost)
			continue;

			auto & facet_rank = element_to_prank(facet);
			if ((proc < UInt(facet_rank)) \|\| (UInt(facet_rank) == rank))
			facet_rank = proc;
			}
			}
			}

			ElementTypeMapArray<UInt> facet_global_connectivities(
			"facet_global_connectivities", id, memory_id);
			facet_global_connectivities.initialize(
			mesh, _spatial_dimension = spatial_dimension - 1, _with_nb_element = true,
			_with_nb_nodes_per_element = true);
			mesh.getGlobalConnectivity(facet_global_connectivities);

			/// init facet check tracking
			ElementTypeMapArray<bool> facet_checked("facet_checked", id, memory_id);
			std::vector<CommunicationRequest> send_requests;

			std::map<UInt, ElementTypeMapArray<UInt>> send_facets;
			std::map<UInt, ElementTypeMapArray<UInt>> connectivities;

			for (auto && sr : iterate_send_recv) {
			GhostType interesting_ghost_type = sr == _send ? _not_ghost : _ghost;
			for (auto && scheme_pair :
			element_synchronizer.communications.iterateSchemes(sr)) {
			facet_checked.initialize(mesh, _spatial_dimension = spatial_dimension - 1,
			_ghost_type = interesting_ghost_type,
			_with_nb_element = true, _default_value = false);

			auto && proc = scheme_pair.first;
			auto & elements = scheme_pair.second;
			auto & facet_scheme = communications.createScheme(proc, sr);

			// this creates empty arrays...
			auto & facet_send_elements = send_facets[proc];
			auto & connectivities_for_proc = connectivities[proc];
			if (sr == _send) {
			connectivities_for_proc.setID(id + ":connectivities_for_proc:");
			connectivities_for_proc.initialize(
			mesh, _spatial_dimension = spatial_dimension - 1,
			_with_nb_nodes_per_element = true);

			facet_send_elements.setID(id + ":facet_send_elements");
			facet_send_elements.initialize(
			mesh, _spatial_dimension = spatial_dimension - 1);
			}

			for (auto && element : elements) {
			const auto & facet_to_element =
			mesh.getSubelementToElement(element.type, element.ghost_type);
			Vector<Element> facets = facet_to_element.begin(
			facet_to_element.getNbComponent())[element.element];

			for (UInt f = 0; f < facets.size(); ++f) {
			auto & facet = facets(f);
			if (facet == ElementNull)
			continue;

			if (facet.ghost_type != interesting_ghost_type)
			continue;

			if (sr == _recv && UInt(element_to_prank(facet)) != proc)
			continue;

			auto & checked = facet_checked(facet);
			if (checked)
			continue;

			checked = true;

			if (sr == _recv) {
			facet_scheme.push_back(facet);
			} else {
			facet_send_elements(facet.type, facet.ghost_type)
			.push_back(facet.element);
			}

			auto & global_conn =
			facet_global_connectivities(facet.type, facet.ghost_type);
			Vector<UInt> conn =
			global_conn.begin(global_conn.getNbComponent())[facet.element];
			std::sort(conn.storage(), conn.storage() + conn.size());
			connectivities_for_proc(facet.type, facet.ghost_type).push_back(conn);
			}
			}
			}
			}

			/// do every communication by element type
			for (auto && type : mesh.elementTypes(spatial_dimension - 1)) {

			for (auto && pair : connectivities) {
			auto proc = std::get<0>(pair);
			const auto & connectivities_for_proc = std::get<1>(pair);
			auto && tag = Tag::genTag(proc, proc, 1337);
			send_requests.push_back(
			comm.asyncSend(connectivities_for_proc(type, _ghost), proc, tag,
			CommunicationMode::_synchronous));
			}

			auto nb_nodes_per_facet = Mesh::getNbNodesPerElement(type);

			Array<UInt> buffer;
			Element facet{type, 0, _not_ghost};

			comm.receiveAnyNumber(
			send_requests, buffer,
			[&](auto && proc, auto && message) {
			auto & local_connectivities = connectivities[proc](type, _not_ghost);
			auto & list = send_facets[proc](type, _not_ghost);
			auto & send_scheme = communications.getScheme(proc, _send);

			std::vector<bool> checked(list.size(), false);

			for (auto && c_to_match : make_view(message, nb_nodes_per_facet)) {
			#if !defined(AKANTU_NDEBUG)
			bool found = false;
			#endif
			for (auto && pair : enumerate(
			make_view(local_connectivities, nb_nodes_per_facet))) {
			UInt f;
			Vector<UInt> local_conn;
			std::tie(f, local_conn) = pair;

			if (checked[f])
			continue;

			if (c_to_match == local_conn) {
			#if !defined(AKANTU_NDEBUG)
			found = true;
			#endif
			checked[f] = true;
			facet.element = list(f);
			send_scheme.push_back(facet);
			break;
			}
			}
			AKANTU_DEBUG_ASSERT(found, "facet not found");
			}
			},
			[&]() { return Tag::genTag(rank, rank, 1337); });
			}
			}

			// /* --------------------------------------------------------------------------
			// */ void FacetSynchronizer::setupFacetSynchronization(
			// ElementSynchronizer & distributed_synchronizer) {
			// AKANTU_DEBUG_IN();

			// Array<Element> * distrib_send_element =
			// distributed_synchronizer.send_element; Array<Element> *
			// distrib_recv_element = distributed_synchronizer.recv_element;

			// /// build rank to facet correspondance
			// ElementTypeMapArray<UInt> rank_to_facet("rank_to_facet", id);
			// initRankToFacet(rank_to_facet);
			// buildRankToFacet(rank_to_facet, distrib_recv_element);

			// /// generate temp_send/recv element arrays with their connectivity
			// Array<ElementTypeMapArray<UInt> *> temp_send_element(nb_proc);
			// Array<ElementTypeMapArray<UInt> *> temp_recv_element(nb_proc);
			// Array<ElementTypeMapArray<UInt> *> send_connectivity(nb_proc);
			// Array<ElementTypeMapArray<UInt> *> recv_connectivity(nb_proc);

			// UInt spatial_dimension = mesh.getSpatialDimension();

			// for (UInt p = 0; p < nb_proc; ++p) {
			// if (p == rank)
			// continue;
			// std::stringstream sstr;
			// sstr << p;

			// temp_send_element(p) = new ElementTypeMapArray<UInt>(
			// "temp_send_element_proc_" + sstr.str(), id);
			// mesh.initElementTypeMapArray(*temp_send_element(p), 1,
			// spatial_dimension - 1);

			// temp_recv_element(p) = new ElementTypeMapArray<UInt>(
			// "temp_recv_element_proc_" + sstr.str(), id);
			// mesh.initElementTypeMapArray(*temp_recv_element(p), 1,
			// spatial_dimension - 1);

			// send_connectivity(p) = new ElementTypeMapArray<UInt>(
			// "send_connectivity_proc_" + sstr.str(), id);
			// mesh.initElementTypeMapArray(*send_connectivity(p), 1,
			// spatial_dimension - 1, true);

			// recv_connectivity(p) = new ElementTypeMapArray<UInt>(
			// "recv_connectivity_proc_" + sstr.str(), id);
			// mesh.initElementTypeMapArray(*recv_connectivity(p), 1,
			// spatial_dimension - 1, true);
			// }

			// /// build global connectivity arrays
			// getFacetGlobalConnectivity<_not_ghost>(distributed_synchronizer,
			// rank_to_facet, distrib_send_element,
			// send_connectivity,
			// temp_send_element);

			// getFacetGlobalConnectivity<_ghost>(distributed_synchronizer, rank_to_facet,
			// distrib_recv_element, recv_connectivity,
			// temp_recv_element);

			// /// build send/recv facet arrays
			// buildSendElementList(send_connectivity, recv_connectivity,
			// temp_send_element); buildRecvElementList(temp_recv_element);

			// #ifndef AKANTU_NDEBUG
			// /// count recv facets for each processor
			// Array<UInt> nb_facets_recv(nb_proc);
			// nb_facets_recv.clear();

			// Mesh::type_iterator first = mesh.firstType(spatial_dimension - 1, _ghost);
			// Mesh::type_iterator last = mesh.lastType(spatial_dimension - 1, _ghost);

			// for (; first != last; ++first) {
			// const Array<UInt> & r_to_f = rank_to_facet(*first, _ghost);
			// UInt nb_facet = r_to_f.getSize();

			// for (UInt f = 0; f < nb_facet; ++f) {
			// UInt proc = r_to_f(f);
			// if (proc != rank)
			// ++nb_facets_recv(proc);
			// }
			// }

			// for (UInt p = 0; p < nb_proc; ++p) {
			// AKANTU_DEBUG_ASSERT(nb_facets_recv(p) == recv_element[p].getSize(),
			// "Wrong number of recv facets");
			// }

			// #endif

			// for (UInt p = 0; p < nb_proc; ++p) {
			// delete temp_send_element(p);
			// delete temp_recv_element(p);
			// delete send_connectivity(p);
			// delete recv_connectivity(p);
			// }

			// AKANTU_DEBUG_OUT();
			// }

			// /* --------------------------------------------------------------------------
			// */ void FacetSynchronizer::buildSendElementList(
			// const Array<ElementTypeMapArray<UInt> *> & send_connectivity,
			// const Array<ElementTypeMapArray<UInt> *> & recv_connectivity,
			// const Array<ElementTypeMapArray<UInt> *> & temp_send_element) {
			// AKANTU_DEBUG_IN();

			// StaticCommunicator & comm = StaticCommunicator::getStaticCommunicator();

			// UInt spatial_dimension = mesh.getSpatialDimension();

			// GhostType ghost_type = _ghost;

			// Mesh::type_iterator first = mesh.firstType(spatial_dimension - 1,
			// ghost_type); Mesh::type_iterator last = mesh.lastType(spatial_dimension -
			// 1, ghost_type);

			// /// do every communication by element type
			// for (; first != last; ++first) {

			// ElementType facet_type = *first;

			// std::vector<CommunicationRequest *> send_requests;
			// UInt * send_size = new UInt[nb_proc];

			// /// send asynchronous data
			// for (UInt p = 0; p < nb_proc; ++p) {
			// if (p == rank)
			// continue;

			// const Array<UInt> & recv_conn =
			// (*recv_connectivity(p))(facet_type, _ghost);
			// send_size[p] = recv_conn.getSize();

			// /// send connectivity size
			// send_requests.push_back(
			// comm.asyncSend(send_size + p, 1, p, Tag::genTag(rank, p, 0)));

			// /// send connectivity data
			// send_requests.push_back(comm.asyncSend(
			// recv_conn.storage(), recv_conn.getSize() *
			// recv_conn.getNbComponent(), p, Tag::genTag(rank, p, 1)));
			// }

			// UInt * recv_size = new UInt[nb_proc];
			// UInt nb_nodes_per_facet = Mesh::getNbNodesPerElement(facet_type);

			// /// receive data
			// for (UInt p = 0; p < nb_proc; ++p) {
			// if (p == rank)
			// continue;

			// /// receive connectivity size
			// comm.receive(recv_size + p, 1, p, Tag::genTag(p, rank, 0));

			// Array<UInt> conn_to_match(recv_size[p], nb_nodes_per_facet);

			// /// receive connectivity
			// comm.receive(conn_to_match.storage(),
			// conn_to_match.getSize() * conn_to_match.getNbComponent(),
			// p, Tag::genTag(p, rank, 1));

			// const Array<UInt> & send_conn =
			// (*send_connectivity(p))(facet_type, _not_ghost);
			// const Array<UInt> & list =
			// (*temp_send_element(p))(facet_type, _not_ghost);
			// UInt nb_local_facets = send_conn.getSize();

			// AKANTU_DEBUG_ASSERT(nb_local_facets == list.getSize(),
			// "connectivity and facet list have different
			// sizes");

			// Array<bool> checked(nb_local_facets);
			// checked.clear();

			// Element facet(facet_type, 0, _not_ghost, _ek_regular);

			// Array<UInt>::iterator<Vector<UInt>> c_to_match_it =
			// conn_to_match.begin(nb_nodes_per_facet);
			// Array<UInt>::iterator<Vector<UInt>> c_to_match_end =
			// conn_to_match.end(nb_nodes_per_facet);

			// /// for every sent facet of other processors, find the
			// /// corresponding one in the local send connectivity data in
			// /// order to build the send_element arrays
			// for (; c_to_match_it != c_to_match_end; ++c_to_match_it) {

			// Array<UInt>::const_iterator<Vector<UInt>> c_local_it =
			// send_conn.begin(nb_nodes_per_facet);
			// Array<UInt>::const_iterator<Vector<UInt>> c_local_end =
			// send_conn.end(nb_nodes_per_facet);

			// for (UInt f = 0; f < nb_local_facets; ++f, ++c_local_it) {
			// if (checked(f))
			// continue;

			// if ((c_to_match_it) == (c_local_it)) {
			// checked(f) = true;
			// facet.element = list(f);
			// send_element[p].push_back(facet);
			// break;
			// }
			// }
			// AKANTU_DEBUG_ASSERT(c_local_it != c_local_end, "facet not found");
			// }
			// }

			// /// wait for all communications to be done and free the
			// /// communication request array
			// comm.waitAll(send_requests);
			// comm.freeCommunicationRequest(send_requests);

			// delete[] send_size;
			// delete[] recv_size;
			// }

			// AKANTU_DEBUG_OUT();
			// }

			// /* --------------------------------------------------------------------------
			// */ void FacetSynchronizer::buildRecvElementList(
			// const Array<ElementTypeMapArray<UInt> *> & temp_recv_element) {
			// AKANTU_DEBUG_IN();

			// UInt spatial_dimension = mesh.getSpatialDimension();

			// for (UInt p = 0; p < nb_proc; ++p) {
			// if (p == rank)
			// continue;

			// GhostType ghost_type = _ghost;

			// Mesh::type_iterator first =
			// mesh.firstType(spatial_dimension - 1, ghost_type);
			// Mesh::type_iterator last = mesh.lastType(spatial_dimension - 1,
			// ghost_type);

			// for (; first != last; ++first) {
			// ElementType facet_type = *first;

			// const Array<UInt> & list =
			// (*temp_recv_element(p))(facet_type, ghost_type);
			// UInt nb_local_facets = list.getSize();

			// Element facet(facet_type, 0, ghost_type, _ek_regular);

			// for (UInt f = 0; f < nb_local_facets; ++f) {
			// facet.element = list(f);
			// recv_element[p].push_back(facet);
			// }
			// }
			// }

			// AKANTU_DEBUG_OUT();
			// }

			// void FacetSynchronizer::initRankToFacet(
			// ElementTypeMapArray<UInt> & rank_to_facet) {
			// AKANTU_DEBUG_IN();

			// auto spatial_dimension = mesh.getSpatialDimension();

			// for (; first != last; ++first) {
			// ElementType type = *first;
			// UInt nb_facet = mesh.getNbElement(type, ghost_type);

			// Array<UInt> & rank_to_f = rank_to_facet(type, ghost_type);
			// rank_to_f.resize(nb_facet);

			// for (UInt f = 0; f < nb_facet; ++f)
			// rank_to_f(f) = rank;
			// }

			// AKANTU_DEBUG_OUT();
			// }

			// /* --------------------------------------------------------------------------
			// */ void FacetSynchronizer::buildRankToFacet(
			// ElementTypeMapArray<UInt> & rank_to_facet,
			// const Array<Element> * elements) {
			// AKANTU_DEBUG_IN();

			// for (UInt p = 0; p < nb_proc; ++p) {
			// if (p == rank)
			// continue;
			// const Array<Element> & elem = elements[p];
			// UInt nb_element = elem.getSize();

			// for (UInt el = 0; el < nb_element; ++el) {
			// ElementType type = elem(el).type;
			// GhostType gt = elem(el).ghost_type;
			// UInt el_index = elem(el).element;

			// const Array<Element> & facet_to_element =
			// mesh.getSubelementToElement(type, gt);
			// UInt nb_facets_per_element = Mesh::getNbFacetsPerElement(type);
			// ElementType facet_type = Mesh::getFacetType(type);

			// for (UInt f = 0; f < nb_facets_per_element; ++f) {
			// const Element & facet = facet_to_element(el_index, f);
			// if (facet == ElementNull)
			// continue;
			// UInt facet_index = facet.element;
			// GhostType facet_gt = facet.ghost_type;

			// if (facet_gt == _not_ghost)
			// continue;

			// Array<UInt> & t_to_f = rank_to_facet(facet_type, facet_gt);
			// if ((p < t_to_f(facet_index)) \|\| (t_to_f(facet_index) == rank))
			// t_to_f(facet_index) = p;
			// }
			// }
			// }

			// AKANTU_DEBUG_OUT();
			// }

			} // namespace akantu

rAKA/src/synchronizer/facet_synchronizer.cc7064d0e0638cfeatures/energy_computa…

facet_synchronizer.ccView Options

rAKA/src/synchronizer/facet_synchronizer.cc
7064d0e0638cfeatures/energy_computa…

facet_synchronizer.cc
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