1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
/*
* Copyright (c) 2008 Princeton University
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Niket Agarwal
*/
#include "base/stl_helpers.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/CreditLink_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/GarnetNetwork_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/InputUnit_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/NetworkLink_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/OutputUnit_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/Router_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/RoutingUnit_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/SWallocator_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/Switch_d.hh"
#include "mem/ruby/network/garnet/fixed-pipeline/VCallocator_d.hh"
using namespace std;
using m5::stl_helpers::deletePointers;
Router_d::Router_d(const Params *p)
: BasicRouter(p)
{
m_virtual_networks = p->virt_nets;
m_vc_per_vnet = p->vcs_per_vnet;
m_num_vcs = m_virtual_networks * m_vc_per_vnet;
m_routing_unit = new RoutingUnit_d(this);
m_vc_alloc = new VCallocator_d(this);
m_sw_alloc = new SWallocator_d(this);
m_switch = new Switch_d(this);
m_input_unit.clear();
m_output_unit.clear();
crossbar_count = 0;
sw_local_arbit_count = 0;
sw_global_arbit_count = 0;
buf_read_count.resize(m_virtual_networks);
buf_write_count.resize(m_virtual_networks);
vc_local_arbit_count.resize(m_virtual_networks);
vc_global_arbit_count.resize(m_virtual_networks);
for (int i = 0; i < m_virtual_networks; i++) {
buf_read_count[i] = 0;
buf_write_count[i] = 0;
vc_local_arbit_count[i] = 0;
vc_global_arbit_count[i] = 0;
}
}
Router_d::~Router_d()
{
deletePointers(m_input_unit);
deletePointers(m_output_unit);
delete m_routing_unit;
delete m_vc_alloc;
delete m_sw_alloc;
delete m_switch;
}
void
Router_d::init()
{
BasicRouter::init();
m_vc_alloc->init();
m_sw_alloc->init();
m_switch->init();
}
void
Router_d::addInPort(NetworkLink_d *in_link, CreditLink_d *credit_link)
{
int port_num = m_input_unit.size();
InputUnit_d *input_unit = new InputUnit_d(port_num, this);
input_unit->set_in_link(in_link);
input_unit->set_credit_link(credit_link);
in_link->setLinkConsumer(input_unit);
credit_link->setSourceQueue(input_unit->getCreditQueue());
m_input_unit.push_back(input_unit);
}
void
Router_d::addOutPort(NetworkLink_d *out_link,
const NetDest& routing_table_entry, int link_weight,
CreditLink_d *credit_link)
{
int port_num = m_output_unit.size();
OutputUnit_d *output_unit = new OutputUnit_d(port_num, this);
output_unit->set_out_link(out_link);
output_unit->set_credit_link(credit_link);
credit_link->setLinkConsumer(output_unit);
out_link->setSourceQueue(output_unit->getOutQueue());
m_output_unit.push_back(output_unit);
m_routing_unit->addRoute(routing_table_entry);
m_routing_unit->addWeight(link_weight);
}
void
Router_d::route_req(flit_d *t_flit, InputUnit_d *in_unit, int invc)
{
m_routing_unit->RC_stage(t_flit, in_unit, invc);
}
void
Router_d::vcarb_req()
{
m_vc_alloc->scheduleEvent(Cycles(1));
}
void
Router_d::swarb_req()
{
m_sw_alloc->scheduleEvent(Cycles(1));
}
void
Router_d::update_incredit(int in_port, int in_vc, int credit)
{
m_input_unit[in_port]->update_credit(in_vc, credit);
}
void
Router_d::update_sw_winner(int inport, flit_d *t_flit)
{
m_switch->update_sw_winner(inport, t_flit);
m_switch->scheduleEvent(Cycles(1));
}
void
Router_d::calculate_performance_numbers()
{
for (int j = 0; j < m_virtual_networks; j++) {
for (int i = 0; i < m_input_unit.size(); i++) {
buf_read_count[j] += m_input_unit[i]->get_buf_read_count(j);
buf_write_count[j] += m_input_unit[i]->get_buf_write_count(j);
}
vc_local_arbit_count[j] = m_vc_alloc->get_local_arbit_count(j);
vc_global_arbit_count[j] = m_vc_alloc->get_global_arbit_count(j);
}
sw_local_arbit_count = m_sw_alloc->get_local_arbit_count();
sw_global_arbit_count = m_sw_alloc->get_global_arbit_count();
crossbar_count = m_switch->get_crossbar_count();
}
void
Router_d::printFaultVector(ostream& out)
{
int temperature_celcius = BASELINE_TEMPERATURE_CELCIUS;
int num_fault_types = m_network_ptr->fault_model->number_of_fault_types;
float fault_vector[num_fault_types];
get_fault_vector(temperature_celcius, fault_vector);
out << "Router-" << m_id << " fault vector: " << endl;
for (int fault_type_index = 0; fault_type_index < num_fault_types;
fault_type_index++){
out << " - probability of (";
out <<
m_network_ptr->fault_model->fault_type_to_string(fault_type_index);
out << ") = ";
out << fault_vector[fault_type_index] << endl;
}
}
void
Router_d::printAggregateFaultProbability(std::ostream& out)
{
int temperature_celcius = BASELINE_TEMPERATURE_CELCIUS;
float aggregate_fault_prob;
get_aggregate_fault_probability(temperature_celcius,
&aggregate_fault_prob);
out << "Router-" << m_id << " fault probability: ";
out << aggregate_fault_prob << endl;
}
uint32_t
Router_d::functionalWrite(Packet *pkt)
{
uint32_t num_functional_writes = 0;
num_functional_writes += m_switch->functionalWrite(pkt);
for (uint32_t i = 0; i < m_input_unit.size(); i++) {
num_functional_writes += m_input_unit[i]->functionalWrite(pkt);
}
for (uint32_t i = 0; i < m_output_unit.size(); i++) {
num_functional_writes += m_output_unit[i]->functionalWrite(pkt);
}
return num_functional_writes;
}
Router_d *
GarnetRouter_dParams::create()
{
return new Router_d(this);
}
|