1/*
2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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83
84 // Internal Links
85 for (vector<BasicIntLink*>::const_iterator i = int_links.begin();
86 i != int_links.end(); ++i) {
87 BasicIntLink *int_link = (*i);
88 BasicRouter *router_src = int_link->params()->src_node;
89 BasicRouter *router_dst = int_link->params()->dst_node;
90
91 // Store the IntLink pointers for later
92 m_int_link_vector.push_back(int_link);
93
94 int src = router_src->params()->router_id + 2*m_nodes;
95 int dst = router_dst->params()->router_id + 2*m_nodes;
96
97 // create the internal uni-directional link from src to dst
98 addLink(src, dst, int_link);
99 }
100}
101
102void
103Topology::createLinks(Network *net)
104{
105 // Find maximum switchID
106 SwitchID max_switch_id = 0;

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148 shortest_path_to_node(i, j, topology_weights, dist);
149 makeLink(net, i, j, destination_set);
150 }
151 }
152 }
153}
154
155void
156Topology::addLink(SwitchID src, SwitchID dest, BasicLink* link)
157{
158 assert(src <= m_number_of_switches+m_nodes+m_nodes);
159 assert(dest <= m_number_of_switches+m_nodes+m_nodes);
160
161 std::pair<int, int> src_dest_pair;
162 LinkEntry link_entry;
163
164 src_dest_pair.first = src;
165 src_dest_pair.second = dest;
166 link_entry.link = link;
167 m_link_map[src_dest_pair] = link_entry;
168}
169
170void
171Topology::makeLink(Network *net, SwitchID src, SwitchID dest,
172 const NetDest& routing_table_entry)
173{
174 // Make sure we're not trying to connect two end-point nodes

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194 routing_table_entry);
195 } else {
196 assert((src >= 2 * m_nodes) && (dest >= 2 * m_nodes));
197 src_dest.first = src;
198 src_dest.second = dest;
199 link_entry = m_link_map[src_dest];
200 net->makeInternalLink(src - (2 * m_nodes), dest - (2 * m_nodes),
201 link_entry.link,
202 routing_table_entry);
203 }
204}
205
206// The following all-pairs shortest path algorithm is based on the
207// discussion from Cormen et al., Chapter 26.1.
208void
209Topology::extend_shortest_path(Matrix &current_dist, Matrix &latencies,
210 Matrix &inter_switches)

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