-/* Copyright (c) 2009-2017. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2009-2018. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "src/kernel/routing/DijkstraZone.hpp"
-#include "src/kernel/routing/NetPoint.hpp"
+#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 <cfloat>
+#include <queue>
+#include <vector>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_dijkstra, surf, "Routing part of surf -- dijkstra routing logic");
static void graph_node_data_free(void* n)
{
- graph_node_data_t data = static_cast<graph_node_data_t>(n);
- delete data;
+ delete static_cast<graph_node_data_t>(n);
}
-static void graph_edge_data_free(void* e) // FIXME: useless code duplication
+static void graph_edge_data_free(void* e)
{
- sg_platf_route_cbarg_t e_route = static_cast<sg_platf_route_cbarg_t>(e);
- if (e_route) {
- delete e_route->link_list;
- delete e_route;
- }
+ delete static_cast<simgrid::kernel::routing::RouteCreationArgs*>(e);
}
/* Utility functions */
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;
}
if (not found) {
- sg_platf_route_cbarg_t e_route = new s_sg_platf_route_cbarg_t;
- e_route->link_list = new std::vector<surf::LinkImpl*>();
- e_route->link_list->push_back(surf_network_model->loopback_);
- xbt_graph_new_edge(routeGraph_, node, node, e_route);
+ RouteCreationArgs* e_route = new simgrid::kernel::routing::RouteCreationArgs();
+ e_route->link_list.push_back(surf_network_model->loopback_);
+ 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->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_, data);
+ graph_node_map_.emplace(id, node);
return node;
}
xbt_node_t DijkstraZone::nodeMapSearch(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, sg_platf_route_cbarg_t e_route)
+void DijkstraZone::newRoute(int src_id, int dst_id, simgrid::kernel::routing::RouteCreationArgs* e_route)
{
XBT_DEBUG("Load Route from \"%d\" to \"%d\"", src_id, dst_id);
xbt_node_t src = nullptr;
}
/* add link as edge to graph */
- xbt_graph_new_edge(routeGraph_, src, dst, e_route);
+ xbt_graph_new_edge(route_graph_, src, dst, e_route);
}
-void DijkstraZone::getLocalRoute(NetPoint* src, NetPoint* dst, sg_platf_route_cbarg_t route, double* lat)
+void DijkstraZone::getLocalRoute(NetPoint* src, NetPoint* dst, RouteCreationArgs* route, double* lat)
{
getRouteCheckParams(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 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->name().c_str(), dst->name().c_str());
+ THROWF(arg_error, 0, "No route from '%s' to '%s'", src->get_cname(), dst->get_cname());
- sg_platf_route_cbarg_t e_route = static_cast<sg_platf_route_cbarg_t>(xbt_graph_edge_get_data(edge));
+ 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);
+ 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();
}
}
- 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) */
int nr_nodes = xbt_dynar_length(nodes);
std::vector<double> cost_arr(nr_nodes); /* link cost from src to other hosts */
pred_arr.resize(nr_nodes); /* predecessors in path from src */
- xbt_heap_t pqueue = xbt_heap_new(nr_nodes, nullptr);
+ typedef std::pair<double, int> Qelt;
+ std::priority_queue<Qelt, std::vector<Qelt>, std::greater<Qelt>> pqueue;
/* initialize */
cost_arr[src_node_id] = 0.0;
pred_arr[i] = 0;
/* initialize priority queue */
- int* nodeid = new int(i);
- xbt_heap_push(pqueue, nodeid, cost_arr[i]);
+ pqueue.emplace(cost_arr[i], i);
}
/* apply dijkstra using the indexes from the graph's node array */
- while (xbt_heap_size(pqueue) > 0) {
- int* v_id = static_cast<int*>(xbt_heap_pop(pqueue));
- xbt_node_t v_node = xbt_dynar_get_as(nodes, *v_id, xbt_node_t);
+ while (not pqueue.empty()) {
+ int v_id = pqueue.top().second;
+ pqueue.pop();
+ xbt_node_t v_node = xbt_dynar_get_as(nodes, v_id, xbt_node_t);
xbt_edge_t edge = nullptr;
unsigned int cursor;
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;
- sg_platf_route_cbarg_t tmp_e_route = static_cast<sg_platf_route_cbarg_t>(xbt_graph_edge_get_data(edge));
- int cost_v_u = tmp_e_route->link_list->size(); /* count of links, old model assume 1 */
-
- if (cost_v_u + cost_arr[*v_id] < cost_arr[u_id]) {
- pred_arr[u_id] = *v_id;
- cost_arr[u_id] = cost_v_u + cost_arr[*v_id];
- int* nodeid = new int(u_id);
- xbt_heap_push(pqueue, nodeid, cost_arr[u_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 */
+
+ if (cost_v_u + cost_arr[v_id] < cost_arr[u_id]) {
+ pred_arr[u_id] = v_id;
+ cost_arr[u_id] = cost_v_u + cost_arr[v_id];
+ pqueue.emplace(cost_arr[u_id], u_id);
}
}
-
- /* free item popped from pqueue */
- delete v_id;
}
- xbt_heap_free(pqueue);
}
/* compose route path with links */
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->name().c_str(), dst->name().c_str());
+ THROWF(arg_error, 0, "No route from '%s' to '%s'", src->get_cname(), dst->get_cname());
- sg_platf_route_cbarg_t e_route = static_cast<sg_platf_route_cbarg_t>(xbt_graph_edge_get_data(edge));
+ RouteCreationArgs* e_route = static_cast<RouteCreationArgs*>(xbt_graph_edge_get_data(edge));
NetPoint* prev_gw_src = gw_src;
gw_src = e_route->gw_src;
if (v == dst_node_id)
first_gw = gw_dst;
- if (hierarchy_ == RoutingMode::recursive && v != dst_node_id &&
- strcmp(gw_dst->name().c_str(), prev_gw_src->name().c_str())) {
+ if (hierarchy_ == RoutingMode::recursive && v != dst_node_id && gw_dst->get_name() != prev_gw_src->get_name()) {
std::vector<surf::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);
- auto pos = route->link_list->begin();
+ getGlobalRoute(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);
+ route->link_list.insert(pos, link);
if (lat)
*lat += link->latency();
pos++;
}
}
- for (auto const& link : *e_route->link_list) {
- route->link_list->insert(route->link_list->begin(), link);
+ 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();
}
}
if (not cached_)
- routeCache_.clear();
+ route_cache_.clear();
}
DijkstraZone::~DijkstraZone()
{
- xbt_graph_free_graph(routeGraph_, &graph_node_data_free, &graph_edge_data_free, nullptr);
+ xbt_graph_free_graph(route_graph_, &graph_node_data_free, &graph_edge_data_free, nullptr);
}
/* Creation routing model functions */
{
}
-void DijkstraZone::addRoute(sg_platf_route_cbarg_t route)
+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)
{
- NetPoint* src = route->src;
- NetPoint* dst = route->dst;
- const char* srcName = src->name().c_str();
- const char* dstName = dst->name().c_str();
+ const char* srcName = src->get_cname();
+ const char* dstName = dst->get_cname();
- addRouteCheckParams(route);
+ addRouteCheckParams(src, dst, gw_src, gw_dst, link_list, symmetrical);
/* 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);
/* 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 */
- sg_platf_route_cbarg_t e_route = newExtendedRoute(hierarchy_, route, 1);
+ 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 (route->symmetrical == true) {
+ if (symmetrical == true) {
- xbt_dynar_t nodes = xbt_graph_get_nodes(routeGraph_);
+ xbt_dynar_t nodes = xbt_graph_get_nodes(route_graph_);
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);
+ xbt_edge_t edge = xbt_graph_get_edge(route_graph_, node_e_v, node_s_v);
- if (not route->gw_dst || not route->gw_src){
+ 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, route->gw_dst->name().c_str(), srcName,
- route->gw_src->name().c_str());
+ XBT_DEBUG("Load NetzoneRoute from %s@%s to %s@%s", dstName, gw_dst->get_cname(), srcName, gw_src->get_cname());
if (edge)
- THROWF(arg_error, 0, "Route from %s@%s to %s@%s already exists", dstName, route->gw_dst->name().c_str(), srcName,
- route->gw_src->name().c_str());
+ THROWF(arg_error, 0, "Route from %s@%s to %s@%s already exists", dstName, gw_dst->get_cname(), srcName,
+ gw_src->get_cname());
}
- if (route->gw_dst && route->gw_src) {
- NetPoint* gw_tmp = route->gw_src;
- route->gw_src = route->gw_dst;
- route->gw_dst = gw_tmp;
+ if (gw_dst && gw_src) {
+ NetPoint* gw_tmp = gw_src;
+ gw_src = gw_dst;
+ gw_dst = gw_tmp;
}
- sg_platf_route_cbarg_t link_route_back = newExtendedRoute(hierarchy_, route, 0);
+ RouteCreationArgs* link_route_back =
+ newExtendedRoute(hierarchy_, src, dst, gw_src, gw_dst, link_list, symmetrical, 0);
newRoute(dst->id(), src->id(), link_route_back);
}
}
