#include "simgrid/kernel/routing/DijkstraZone.hpp"
#include "simgrid/kernel/routing/NetPoint.hpp"
#include "src/surf/network_interface.hpp"
+#include "src/surf/xml/platf_private.hpp"
+#include "surf/surf.hpp"
#include <cfloat>
#include <queue>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_dijkstra, surf, "Routing part of surf -- dijkstra routing logic");
-/* Free functions */
+namespace simgrid {
+namespace kernel {
+namespace routing {
+
+class GraphNodeData {
+public:
+ explicit GraphNodeData(int id) : id_(id) {}
+ int id_;
+ int graph_id_ = -1; /* used for caching internal graph id's */
+};
+
+DijkstraZone::DijkstraZone(NetZoneImpl* father, std::string name, resource::NetworkModel* netmodel, bool cached)
+ : RoutedZone(father, name, netmodel), cached_(cached)
+{
+}
static void graph_node_data_free(void* n)
{
- delete static_cast<graph_node_data_t>(n);
+ delete static_cast<simgrid::kernel::routing::GraphNodeData*>(n);
}
static void graph_edge_data_free(void* e)
{
- delete static_cast<RouteCreationArgs*>(e);
+ delete static_cast<simgrid::kernel::routing::RouteCreationArgs*>(e);
}
-/* Utility functions */
+DijkstraZone::~DijkstraZone()
+{
+ xbt_graph_free_graph(route_graph_, &graph_node_data_free, &graph_edge_data_free, nullptr);
+}
-namespace simgrid {
-namespace kernel {
-namespace routing {
void DijkstraZone::seal()
{
unsigned int cursor;
xbt_node_t node = nullptr;
- /* Create the topology graph */
- if (not routeGraph_)
- routeGraph_ = xbt_graph_new_graph(1, nullptr);
+ if (not route_graph_)
+ route_graph_ = xbt_graph_new_graph(1, nullptr);
/* Add the loopback if needed */
if (surf_network_model->loopback_ && hierarchy_ == RoutingMode::base) {
- xbt_dynar_foreach (xbt_graph_get_nodes(routeGraph_), cursor, node) {
+ xbt_dynar_foreach (xbt_graph_get_nodes(route_graph_), cursor, node) {
bool found = false;
xbt_edge_t edge = nullptr;
unsigned int cursor2;
xbt_dynar_foreach (xbt_graph_node_get_outedges(node), cursor2, edge) {
- if (xbt_graph_edge_get_target(edge) == node) {
+ if (xbt_graph_edge_get_target(edge) == node) { // There is an edge from node to itself
found = true;
break;
}
}
if (not found) {
- RouteCreationArgs* e_route = new RouteCreationArgs();
+ RouteCreationArgs* e_route = new simgrid::kernel::routing::RouteCreationArgs();
e_route->link_list.push_back(surf_network_model->loopback_);
- xbt_graph_new_edge(routeGraph_, node, node, e_route);
+ xbt_graph_new_edge(route_graph_, node, node, e_route);
}
}
}
/* initialize graph indexes in nodes after graph has been built */
- xbt_dynar_t nodes = xbt_graph_get_nodes(routeGraph_);
+ xbt_dynar_t nodes = xbt_graph_get_nodes(route_graph_);
xbt_dynar_foreach (nodes, cursor, node) {
- graph_node_data_t data = static_cast<graph_node_data_t>(xbt_graph_node_get_data(node));
- data->graph_id = cursor;
+ GraphNodeData* data = static_cast<GraphNodeData*>(xbt_graph_node_get_data(node));
+ data->graph_id_ = cursor;
}
}
-xbt_node_t DijkstraZone::routeGraphNewNode(int id, int graph_id)
+xbt_node_t DijkstraZone::route_graph_new_node(int id)
{
- graph_node_data_t data = new s_graph_node_data_t;
- data->id = id;
- data->graph_id = graph_id;
-
- xbt_node_t node = xbt_graph_new_node(routeGraph_, data);
- graphNodeMap_.emplace(id, node);
+ xbt_node_t node = xbt_graph_new_node(route_graph_, new GraphNodeData(id));
+ graph_node_map_.emplace(id, node);
return node;
}
-xbt_node_t DijkstraZone::nodeMapSearch(int id)
+xbt_node_t DijkstraZone::node_map_search(int id)
{
- auto ret = graphNodeMap_.find(id);
- return ret == graphNodeMap_.end() ? nullptr : ret->second;
+ auto ret = graph_node_map_.find(id);
+ return ret == graph_node_map_.end() ? nullptr : ret->second;
}
/* Parsing */
-void DijkstraZone::newRoute(int src_id, int dst_id, RouteCreationArgs* e_route)
+void DijkstraZone::get_local_route(NetPoint* src, NetPoint* dst, RouteCreationArgs* route, double* lat)
{
- XBT_DEBUG("Load Route from \"%d\" to \"%d\"", src_id, dst_id);
- xbt_node_t src = nullptr;
- xbt_node_t dst = nullptr;
-
- xbt_node_t src_elm = nodeMapSearch(src_id);
- xbt_node_t dst_elm = nodeMapSearch(dst_id);
-
- if (src_elm)
- src = src_elm;
-
- if (dst_elm)
- dst = dst_elm;
-
- /* add nodes if they don't exist in the graph */
- if (src_id == dst_id && src == nullptr && dst == nullptr) {
- src = this->routeGraphNewNode(src_id, -1);
- dst = src;
- } else {
- if (src == nullptr) {
- src = this->routeGraphNewNode(src_id, -1);
- }
- if (dst == nullptr) {
- dst = this->routeGraphNewNode(dst_id, -1);
- }
- }
-
- /* add link as edge to graph */
- xbt_graph_new_edge(routeGraph_, src, dst, e_route);
-}
-
-void DijkstraZone::getLocalRoute(NetPoint* src, NetPoint* dst, RouteCreationArgs* route, double* lat)
-{
- getRouteCheckParams(src, dst);
+ get_route_check_params(src, dst);
int src_id = src->id();
int dst_id = dst->id();
- xbt_dynar_t nodes = xbt_graph_get_nodes(routeGraph_);
+ xbt_dynar_t nodes = xbt_graph_get_nodes(route_graph_);
/* Use the graph_node id mapping set to quickly find the nodes */
- xbt_node_t src_elm = nodeMapSearch(src_id);
- xbt_node_t dst_elm = nodeMapSearch(dst_id);
+ xbt_node_t src_elm = node_map_search(src_id);
+ xbt_node_t dst_elm = node_map_search(dst_id);
- int src_node_id = static_cast<graph_node_data_t>(xbt_graph_node_get_data(src_elm))->graph_id;
- int dst_node_id = static_cast<graph_node_data_t>(xbt_graph_node_get_data(dst_elm))->graph_id;
+ int src_node_id = static_cast<GraphNodeData*>(xbt_graph_node_get_data(src_elm))->graph_id_;
+ int dst_node_id = static_cast<GraphNodeData*>(xbt_graph_node_get_data(dst_elm))->graph_id_;
/* if the src and dst are the same */
if (src_node_id == dst_node_id) {
xbt_node_t node_s_v = xbt_dynar_get_as(nodes, src_node_id, xbt_node_t);
xbt_node_t node_e_v = xbt_dynar_get_as(nodes, dst_node_id, xbt_node_t);
- xbt_edge_t edge = xbt_graph_get_edge(routeGraph_, node_s_v, node_e_v);
+ xbt_edge_t edge = xbt_graph_get_edge(route_graph_, node_s_v, node_e_v);
if (edge == nullptr)
- THROWF(arg_error, 0, "No route from '%s' to '%s'", src->getCname(), dst->getCname());
+ THROWF(arg_error, 0, "No route from '%s' to '%s'", src->get_cname(), dst->get_cname());
RouteCreationArgs* e_route = static_cast<RouteCreationArgs*>(xbt_graph_edge_get_data(edge));
for (auto const& link : e_route->link_list) {
route->link_list.insert(route->link_list.begin(), link);
if (lat)
- *lat += static_cast<surf::LinkImpl*>(link)->latency();
+ *lat += static_cast<resource::LinkImpl*>(link)->get_latency();
}
}
- auto elm = routeCache_.emplace(src_id, std::vector<int>());
+ auto elm = route_cache_.emplace(src_id, std::vector<int>());
std::vector<int>& pred_arr = elm.first->second;
if (elm.second) { /* new element was inserted (not cached mode, or cache miss) */
xbt_dynar_foreach (xbt_graph_node_get_outedges(v_node), cursor, edge) {
xbt_node_t u_node = xbt_graph_edge_get_target(edge);
- graph_node_data_t data = static_cast<graph_node_data_t>(xbt_graph_node_get_data(u_node));
- int u_id = data->graph_id;
+ GraphNodeData* data = static_cast<GraphNodeData*>(xbt_graph_node_get_data(u_node));
+ int u_id = data->graph_id_;
RouteCreationArgs* tmp_e_route = static_cast<RouteCreationArgs*>(xbt_graph_edge_get_data(edge));
int cost_v_u = tmp_e_route->link_list.size(); /* count of links, old model assume 1 */
}
/* compose route path with links */
- NetPoint* gw_src = nullptr;
- NetPoint* gw_dst;
- NetPoint* first_gw = nullptr;
+ NetPoint* gw_src = nullptr;
+ NetPoint* first_gw = nullptr;
for (int v = dst_node_id; v != src_node_id; v = pred_arr[v]) {
xbt_node_t node_pred_v = xbt_dynar_get_as(nodes, pred_arr[v], xbt_node_t);
xbt_node_t node_v = xbt_dynar_get_as(nodes, v, xbt_node_t);
- xbt_edge_t edge = xbt_graph_get_edge(routeGraph_, node_pred_v, node_v);
+ xbt_edge_t edge = xbt_graph_get_edge(route_graph_, node_pred_v, node_v);
if (edge == nullptr)
- THROWF(arg_error, 0, "No route from '%s' to '%s'", src->getCname(), dst->getCname());
+ THROWF(arg_error, 0, "No route from '%s' to '%s'", src->get_cname(), dst->get_cname());
RouteCreationArgs* e_route = static_cast<RouteCreationArgs*>(xbt_graph_edge_get_data(edge));
- NetPoint* prev_gw_src = gw_src;
- gw_src = e_route->gw_src;
- gw_dst = e_route->gw_dst;
+ NetPoint* prev_gw_src = gw_src;
+ gw_src = e_route->gw_src;
+ NetPoint* gw_dst = e_route->gw_dst;
if (v == dst_node_id)
first_gw = gw_dst;
- if (hierarchy_ == RoutingMode::recursive && v != dst_node_id && gw_dst->getName() != prev_gw_src->getName()) {
- std::vector<surf::LinkImpl*> e_route_as_to_as;
+ if (hierarchy_ == RoutingMode::recursive && v != dst_node_id && gw_dst->get_name() != prev_gw_src->get_name()) {
+ std::vector<resource::LinkImpl*> e_route_as_to_as;
NetPoint* gw_dst_net_elm = nullptr;
NetPoint* prev_gw_src_net_elm = nullptr;
- getGlobalRoute(gw_dst_net_elm, prev_gw_src_net_elm, e_route_as_to_as, nullptr);
+ get_global_route(gw_dst_net_elm, prev_gw_src_net_elm, e_route_as_to_as, nullptr);
auto pos = route->link_list.begin();
for (auto const& link : e_route_as_to_as) {
route->link_list.insert(pos, link);
if (lat)
- *lat += link->latency();
+ *lat += link->get_latency();
pos++;
}
}
for (auto const& link : e_route->link_list) {
route->link_list.insert(route->link_list.begin(), link);
if (lat)
- *lat += static_cast<surf::LinkImpl*>(link)->latency();
+ *lat += static_cast<resource::LinkImpl*>(link)->get_latency();
}
}
}
if (not cached_)
- routeCache_.clear();
+ route_cache_.clear();
}
-DijkstraZone::~DijkstraZone()
+void DijkstraZone::add_route(NetPoint* src, NetPoint* dst, NetPoint* gw_src, NetPoint* gw_dst,
+ std::vector<resource::LinkImpl*>& link_list, bool symmetrical)
{
- xbt_graph_free_graph(routeGraph_, &graph_node_data_free, &graph_edge_data_free, nullptr);
-}
+ add_route_check_params(src, dst, gw_src, gw_dst, link_list, symmetrical);
-/* Creation routing model functions */
+ if (not route_graph_)
+ route_graph_ = xbt_graph_new_graph(1, nullptr);
-DijkstraZone::DijkstraZone(NetZone* father, std::string name, bool cached) : RoutedZone(father, name), cached_(cached)
-{
+ new_edge(src->id(), dst->id(), new_extended_route(hierarchy_, src, dst, gw_src, gw_dst, link_list, symmetrical, 1));
+
+ if (symmetrical == true)
+ new_edge(dst->id(), src->id(), new_extended_route(hierarchy_, dst, src, gw_dst, gw_src, link_list, symmetrical, 0));
}
-void DijkstraZone::addRoute(kernel::routing::NetPoint* src, kernel::routing::NetPoint* dst,
- kernel::routing::NetPoint* gw_src, kernel::routing::NetPoint* gw_dst,
- std::vector<simgrid::surf::LinkImpl*>& link_list, bool symmetrical)
+void DijkstraZone::new_edge(int src_id, int dst_id, simgrid::kernel::routing::RouteCreationArgs* route)
{
- const char* srcName = src->getCname();
- const char* dstName = dst->getCname();
-
- addRouteCheckParams(src, dst, gw_src, gw_dst, link_list, symmetrical);
-
- /* Create the topology graph */
- if (not routeGraph_)
- routeGraph_ = xbt_graph_new_graph(1, nullptr);
-
- /* we don't check whether the route already exist, because the algorithm may find another path through some other
- * nodes */
-
- /* Add the route to the base */
- RouteCreationArgs* e_route = newExtendedRoute(hierarchy_, src, dst, gw_src, gw_dst, link_list, symmetrical, 1);
- newRoute(src->id(), dst->id(), e_route);
-
- // Symmetrical YES
- if (symmetrical == true) {
-
- xbt_dynar_t nodes = xbt_graph_get_nodes(routeGraph_);
- xbt_node_t node_s_v = xbt_dynar_get_as(nodes, src->id(), xbt_node_t);
- xbt_node_t node_e_v = xbt_dynar_get_as(nodes, dst->id(), xbt_node_t);
- xbt_edge_t edge = xbt_graph_get_edge(routeGraph_, node_e_v, node_s_v);
-
- if (not gw_dst || not gw_src) {
- XBT_DEBUG("Load Route from \"%s\" to \"%s\"", dstName, srcName);
- if (edge)
- THROWF(arg_error, 0, "Route from %s to %s already exists", dstName, srcName);
- } else {
- XBT_DEBUG("Load NetzoneRoute from %s@%s to %s@%s", dstName, gw_dst->getCname(), srcName, gw_src->getCname());
- if (edge)
- THROWF(arg_error, 0, "Route from %s@%s to %s@%s already exists", dstName, gw_dst->getCname(), srcName,
- gw_src->getCname());
- }
-
- if (gw_dst && gw_src) {
- NetPoint* gw_tmp = gw_src;
- gw_src = gw_dst;
- gw_dst = gw_tmp;
- }
- RouteCreationArgs* link_route_back =
- newExtendedRoute(hierarchy_, src, dst, gw_src, gw_dst, link_list, symmetrical, 0);
- newRoute(dst->id(), src->id(), link_route_back);
+ XBT_DEBUG("Create Route from '%d' to '%d'", src_id, dst_id);
+
+ // Get the extremities, or create them if they don't exist yet
+ xbt_node_t src = node_map_search(src_id);
+ if (src == nullptr)
+ src = route_graph_new_node(src_id);
+
+ xbt_node_t dst = node_map_search(dst_id);
+ if (dst == nullptr)
+ dst = route_graph_new_node(dst_id);
+
+ // Make sure that this graph edge was not already added to the graph
+ if (xbt_graph_get_edge(route_graph_, src, dst) != nullptr) {
+ if (route->gw_dst == nullptr || route->gw_src == nullptr)
+ THROWF(arg_error, 0, "Route from %s to %s already exists", route->src->get_cname(), route->dst->get_cname());
+ else
+ THROWF(arg_error, 0, "Route from %s@%s to %s@%s already exists", route->src->get_cname(),
+ route->gw_src->get_cname(), route->dst->get_cname(), route->gw_dst->get_cname());
}
+
+ // Finally add it
+ xbt_graph_new_edge(route_graph_, src, dst, route);
}
}
}
