+++ /dev/null
-/* Copyright (c) 2013-2016. 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 <boost/algorithm/string.hpp>
-
-#include <simgrid/s4u/host.hpp>
-
-#include "src/kernel/routing/AsVivaldi.hpp"
-#include "src/kernel/routing/NetCard.hpp"
-#include "src/surf/network_interface.hpp"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_vivaldi, surf, "Routing part of surf");
-
-namespace simgrid {
-namespace kernel {
-namespace routing {
-namespace vivaldi {
-simgrid::xbt::Extension<NetCard, Coords> Coords::EXTENSION_ID;
-
-Coords::Coords(NetCard* netcard, const char* coordStr)
-{
- if (!Coords::EXTENSION_ID.valid())
- Coords::EXTENSION_ID = NetCard::extension_create<Coords>();
-
- std::vector<std::string> string_values;
- boost::split(string_values, coordStr, boost::is_any_of(" "));
- xbt_assert(string_values.size() == 3, "Coordinates of %s must have 3 dimensions", netcard->cname());
-
- for (auto str : string_values)
- coords.push_back(xbt_str_parse_double(str.c_str(), "Invalid coordinate: %s"));
- coords.shrink_to_fit();
-
- netcard->extension_set<Coords>(this);
- XBT_DEBUG("Coords of %s %p: %s", netcard->cname(), netcard, coordStr);
-}
-Coords::~Coords() = default;
-}; // namespace vivaldi
-
-static inline double euclidean_dist_comp(int index, std::vector<double>* src, std::vector<double>* dst)
-{
- double src_coord = src->at(index);
- double dst_coord = dst->at(index);
-
- return (src_coord - dst_coord) * (src_coord - dst_coord);
-}
-
-static std::vector<double>* getCoordsFromNetcard(NetCard* nc)
-{
- simgrid::kernel::routing::vivaldi::Coords* coords = nc->extension<simgrid::kernel::routing::vivaldi::Coords>();
- xbt_assert(coords, "Please specify the Vivaldi coordinates of %s %s (%p)",
- (nc->isAS() ? "AS" : (nc->isHost() ? "Host" : "Router")), nc->cname(), nc);
- return &coords->coords;
-}
-AsVivaldi::AsVivaldi(As* father, const char* name) : AsCluster(father, name)
-{
-}
-
-void AsVivaldi::setPeerLink(NetCard* netcard, double bw_in, double bw_out, double latency, const char* coord)
-{
- xbt_assert(netcard->containingAS() == this, "Cannot add a peer link to a netcard that is not in this AS");
-
- new simgrid::kernel::routing::vivaldi::Coords(netcard, coord);
-
- char* link_up = bprintf("link_%s_UP", netcard->cname());
- char* link_down = bprintf("link_%s_DOWN", netcard->cname());
- Link* linkUp = surf_network_model->createLink(link_up, bw_out, latency, SURF_LINK_SHARED);
- Link* linkDown = surf_network_model->createLink(link_down, bw_in, latency, SURF_LINK_SHARED);
- privateLinks_.insert({netcard->id(), {linkUp, linkDown}});
-
- free(link_up);
- free(link_down);
-}
-
-void AsVivaldi::getLocalRoute(NetCard* src, NetCard* dst, sg_platf_route_cbarg_t route, double* lat)
-{
- XBT_DEBUG("vivaldi getLocalRoute from '%s'[%d] '%s'[%d]", src->cname(), src->id(), dst->cname(), dst->id());
-
- if (src->isAS()) {
- char* srcName = bprintf("router_%s", src->cname());
- char* dstName = bprintf("router_%s", dst->cname());
- route->gw_src = (sg_netcard_t)xbt_lib_get_or_null(as_router_lib, srcName, ROUTING_ASR_LEVEL);
- route->gw_dst = (sg_netcard_t)xbt_lib_get_or_null(as_router_lib, dstName, ROUTING_ASR_LEVEL);
- xbt_free(srcName);
- xbt_free(dstName);
- }
-
- /* Retrieve the private links */
- if (privateLinks_.find(src->id()) != privateLinks_.end()) {
- std::pair<Link*, Link*> info = privateLinks_.at(src->id());
- if (info.first) {
- route->link_list->push_back(info.first);
- if (lat)
- *lat += info.first->latency();
- }
- }
- if (privateLinks_.find(dst->id()) != privateLinks_.end()) {
- std::pair<Link*, Link*> info = privateLinks_.at(dst->id());
- if (info.second) {
- route->link_list->push_back(info.second);
- if (lat)
- *lat += info.second->latency();
- }
- }
-
- /* Compute the extra latency due to the euclidean distance if needed */
- if (lat) {
- std::vector<double>* srcCoords = getCoordsFromNetcard(src);
- std::vector<double>* dstCoords = getCoordsFromNetcard(dst);
-
- double euclidean_dist =
- sqrt(euclidean_dist_comp(0, srcCoords, dstCoords) + euclidean_dist_comp(1, srcCoords, dstCoords)) +
- fabs(srcCoords->at(2)) + fabs(dstCoords->at(2));
-
- XBT_DEBUG("Updating latency %f += %f", *lat, euclidean_dist);
- *lat += euclidean_dist / 1000.0; // From .ms to .s
- }
-}
-}
-}
-}
