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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36#include "mem/ruby/network/simple/SimpleNetwork.hh"
37#include "mem/ruby/network/simple/Switch.hh"
38#include "mem/ruby/network/simple/Throttle.hh"
39
40using namespace std;
41using m5::stl_helpers::deletePointers;
42using m5::stl_helpers::operator<<;
43
44Switch::Switch(SwitchID sid, SimpleNetwork* network_ptr)
45{
46 m_perfect_switch_ptr = new PerfectSwitch(sid, network_ptr);
47 m_switch_id = sid;
48}
49
50Switch::~Switch()
51{
52 delete m_perfect_switch_ptr;
53
54 // Delete throttles (one per output port)
55 deletePointers(m_throttles);
56
57 // Delete MessageBuffers
58 deletePointers(m_buffers_to_free);
59}
60
61void
62Switch::addInPort(const vector<MessageBuffer*>& in)
63{
64 m_perfect_switch_ptr->addInPort(in);
65}
66
67void
68Switch::addOutPort(const vector<MessageBuffer*>& out,
69 const NetDest& routing_table_entry, int link_latency, int bw_multiplier)
70{
71 Throttle* throttle_ptr = NULL;
72 SimpleNetwork* net_ptr =
73 safe_cast<SimpleNetwork*>(RubySystem::getNetwork());
74
75 // Create a throttle
76 throttle_ptr = new Throttle(m_switch_id, m_throttles.size(), link_latency,
77 bw_multiplier, net_ptr->getEndpointBandwidth(),
78 net_ptr);
79 m_throttles.push_back(throttle_ptr);
80
81 // Create one buffer per vnet (these are intermediaryQueues)
82 vector<MessageBuffer*> intermediateBuffers;
83 for (int i = 0; i < out.size(); i++) {
84 MessageBuffer* buffer_ptr = new MessageBuffer;
85 // Make these queues ordered
86 buffer_ptr->setOrdering(true);
87 if (net_ptr->getBufferSize() > 0) {
88 buffer_ptr->resize(net_ptr->getBufferSize());
89 }
90 intermediateBuffers.push_back(buffer_ptr);
91 m_buffers_to_free.push_back(buffer_ptr);
92 }
93
94 // Hook the queues to the PerfectSwitch
95 m_perfect_switch_ptr->addOutPort(intermediateBuffers, routing_table_entry);
96
97 // Hook the queues to the Throttle
98 throttle_ptr->addLinks(intermediateBuffers, out);
99}
100

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132Switch::getThrottles() const
133{
134 return &m_throttles;
135}
136
137void
138Switch::printStats(std::ostream& out) const
139{
140 ccprintf(out, "switch_%d_inlinks: %d\n", m_switch_id,
141 m_perfect_switch_ptr->getInLinks());
142 ccprintf(out, "switch_%d_outlinks: %d\n", m_switch_id,
143 m_perfect_switch_ptr->getOutLinks());
144
145 // Average link utilizations
146 double average_utilization = 0.0;
147 int throttle_count = 0;
148
149 for (int i = 0; i < m_throttles.size(); i++) {
150 Throttle* throttle_ptr = m_throttles[i];
151 if (throttle_ptr) {
152 average_utilization += throttle_ptr->getUtilization();
153 throttle_count++;
154 }
155 }
156 average_utilization =
157 throttle_count == 0 ? 0 : average_utilization / throttle_count;
158
159 // Individual link utilizations
160 out << "links_utilized_percent_switch_" << m_switch_id << ": "
161 << average_utilization << endl;
162
163 for (int link = 0; link < m_throttles.size(); link++) {
164 Throttle* throttle_ptr = m_throttles[link];
165 if (throttle_ptr != NULL) {
166 out << " links_utilized_percent_switch_" << m_switch_id
167 << "_link_" << link << ": "
168 << throttle_ptr->getUtilization() << " bw: "
169 << throttle_ptr->getLinkBandwidth()
170 << " base_latency: " << throttle_ptr->getLatency() << endl;
171 }
172 }
173 out << endl;
174

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182 throttle_ptr->getCounters();
183 for (int int_type = 0; int_type < MessageSizeType_NUM; int_type++) {
184 MessageSizeType type = MessageSizeType(int_type);
185 const vector<int> &mct = message_counts[type];
186 int sum = accumulate(mct.begin(), mct.end(), 0);
187 if (sum == 0)
188 continue;
189
190 out << " outgoing_messages_switch_" << m_switch_id
191 << "_link_" << link << "_" << type << ": " << sum << " "
192 << sum * RubySystem::getNetwork()->MessageSizeType_to_int(type)
193 << " ";
194 out << mct;
195 out << " base_latency: "
196 << throttle_ptr->getLatency() << endl;
197 }
198 }
199 out << endl;
200}

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210}
211
212void
213Switch::print(std::ostream& out) const
214{
215 // FIXME printing
216 out << "[Switch]";
217}