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
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
#include "model/electrical/SeparableAllocator.h"
#include "model/ModelGen.h"
#include "model/timing_graph/ElectricalNet.h"
namespace DSENT
{
SeparableAllocator::SeparableAllocator(const String& instance_name_, const TechModel* tech_model_)
: ElectricalModel(instance_name_, tech_model_)
{
initParameters();
initProperties();
}
SeparableAllocator::~SeparableAllocator()
{}
void SeparableAllocator::initParameters()
{
addParameterName("NumberRequesters");
addParameterName("NumberResources");
addParameterName("IsRequesterFirst", true);
addParameterName("Stage1->ArbiterModel");
addParameterName("Stage2->ArbiterModel");
return;
}
void SeparableAllocator::initProperties()
{
addPropertyName("P(Request)");
addPropertyName("Act(Request)");
addPropertyName("P(CK)");
addPropertyName("Act(CK)");
return;
}
SeparableAllocator* SeparableAllocator::clone() const
{
// TODO
return NULL;
}
void SeparableAllocator::constructModel()
{
// Get parameters
unsigned int number_requesters = getParameter("NumberRequesters").toUInt();
unsigned int number_resources = getParameter("NumberResources").toUInt();
bool is_requester_first = getParameter("IsRequesterFirst").toBool();
const String& stage1_arbiter_model = getParameter("Stage1->ArbiterModel");
const String& stage2_arbiter_model = getParameter("Stage2->ArbiterModel");
ASSERT(number_requesters > 0, "[Error] " + getInstanceName() +
" -> Number of requesters must be > 0!");
ASSERT(number_resources > 0, "[Error] " + getInstanceName() +
" -> Number of resources must be > 0!");
// Create area, power, and event results
createElectricalResults();
addEventResult(new Result("Allocate"));
// Create ports
createInputPort("CK");
for(unsigned int i = 0; i < number_requesters; ++i)
{
createInputPort("Request" + (String)i, makeNetIndex(0, number_resources-1));
createOutputPort("Grant" + (String)i, makeNetIndex(0, number_resources-1));
}
// If is_requester_first is set, requests from the same requester will be arbitrate
// on stage 1
if(is_requester_first)
{
// Init stage 1 arbiters
for(unsigned int i = 0; i < number_requesters; ++i)
{
ElectricalModel* arb = (ElectricalModel*)ModelGen::createModel(stage1_arbiter_model, "Stage1Arb" + (String)i, getTechModel());
arb->setParameter("NumberRequests", number_resources);
arb->construct();
addSubInstances(arb, 1.0);
addElectricalSubResults(arb, 1.0);
getEventResult("Allocate")->addSubResult(arb->getEventResult("Arbitrate"), arb->getInstanceName(), 1.0);
createNet("Stage1Arb_In" + (String)i, makeNetIndex(0, number_resources-1));
createNet("Stage1Arb_Out" + (String)i, makeNetIndex(0, number_resources-1));
portConnect(arb, "CK", "CK");
assign("Stage1Arb_In" + (String)i, "Request" + (String)i);
for(unsigned int j = 0; j < number_resources; ++j)
{
portConnect(arb, "Request" + (String)j, "Stage1Arb_In" + (String)i, makeNetIndex(j));
portConnect(arb, "Grant" + (String)j, "Stage1Arb_Out" + (String)i, makeNetIndex(j));
}
}
// Init stage 2 arbiters
for(unsigned int i = 0; i < number_resources; ++i)
{
ElectricalModel* arb = (ElectricalModel*)ModelGen::createModel(stage2_arbiter_model, "Stage2Arb" + (String)i, getTechModel());
arb->setParameter("NumberRequests", number_requesters);
arb->construct();
addSubInstances(arb, 1.0);
addElectricalSubResults(arb, 1.0);
getEventResult("Allocate")->addSubResult(arb->getEventResult("Arbitrate"), arb->getInstanceName(), 1.0);
createNet("Stage2Arb_In" + (String)i, makeNetIndex(0, number_requesters-1));
createNet("Stage2Arb_Out" + (String)i, makeNetIndex(0, number_requesters-1));
portConnect(arb, "CK", "CK");
for(unsigned int j = 0; j < number_requesters; ++j)
{
assign("Stage2Arb_In" + (String)i, makeNetIndex(j), "Stage1Arb_Out" + (String)j, makeNetIndex(i));
portConnect(arb, "Request" + (String)j, "Stage2Arb_In" + (String)i, makeNetIndex(j));
portConnect(arb, "Grant" + (String)j, "Stage2Arb_Out" + (String)i, makeNetIndex(j));
assign("Grant" + (String)j, makeNetIndex(i), "Stage2Arb_Out" + (String)i, makeNetIndex(j));
}
}
}
else
{
// Init stage 1 arbiters
for(unsigned int i = 0; i < number_resources; ++i)
{
ElectricalModel* arb = (ElectricalModel*)ModelGen::createModel(stage1_arbiter_model, "Stage1Arb" + (String)i, getTechModel());
arb->setParameter("NumberRequests", number_requesters);
arb->construct();
addSubInstances(arb, 1.0);
addElectricalSubResults(arb, 1.0);
getEventResult("Allocate")->addSubResult(arb->getEventResult("Arbitrate"), arb->getInstanceName(), 1.0);
createNet("Stage1Arb_In" + (String)i, makeNetIndex(0, number_requesters-1));
createNet("Stage1Arb_Out" + (String)i, makeNetIndex(0, number_requesters-1));
portConnect(arb, "CK", "CK");
for(unsigned int j = 0; j < number_requesters; ++j)
{
assign("Stage1Arb_In" + (String)i, makeNetIndex(j), "Request" + (String)j, makeNetIndex(i));
portConnect(arb, "Request" + (String)j, "Stage1Arb_In" + (String)i, makeNetIndex(j));
portConnect(arb, "Grant" + (String)j, "Stage1Arb_Out" + (String)i, makeNetIndex(j));
}
}
// Init stage 2 arbiters
for(unsigned int i = 0; i < number_requesters; ++i)
{
ElectricalModel* arb = (ElectricalModel*)ModelGen::createModel(stage2_arbiter_model, "Stage2Arb" + (String)i, getTechModel());
arb->setParameter("NumberRequests", number_requesters);
arb->construct();
addSubInstances(arb, 1.0);
addElectricalSubResults(arb, 1.0);
getEventResult("Allocate")->addSubResult(arb->getEventResult("Arbitrate"), arb->getInstanceName(), 1.0);
createNet("Stage2Arb_In" + (String)i, makeNetIndex(0, number_resources-1));
createNet("Stage2Arb_Out" + (String)i, makeNetIndex(0, number_resources-1));
portConnect(arb, "CK", "CK");
for(unsigned int j = 0; j < number_resources; ++j)
{
assign("Stage2Arb_In" + (String)i, makeNetIndex(j), "Stage1Arb_Out" + (String)j, makeNetIndex(i));
portConnect(arb, "Request" + (String)j, "Stage2Arb_In", makeNetIndex(j));
portConnect(arb, "Grant" + (String)j, "Stage2Arb_Out", makeNetIndex(j));
}
assign("Grant" + (String)i, "Stage2Arb_Out" + (String)i);
}
}
return;
}
void SeparableAllocator::updateModel()
{
// Get parameters
unsigned int number_requesters = getParameter("NumberRequesters").toUInt();
unsigned int number_resources = getParameter("NumberResources").toUInt();
bool is_requester_first = getParameter("IsRequesterFirst").toBool();
// Get probabilities from inputs
const String& P_request = getProperty("P(Request)");
const String& act_request = getProperty("Act(Request)");
const String& P_CK = getProperty("P(CK)");
const String& act_CK = getProperty("Act(CK)");
const vector<double>& P_request_vector = LibUtil::castStringVector<double>(P_request.split("[,]"));
const vector<double>& act_request_vector = LibUtil::castStringVector<double>(act_request.split("[,]"));
ASSERT(P_request_vector.size() == (number_requesters * number_resources), "[Error] " + getInstanceName() +
" -> Expecting " + (String)(number_requesters * number_resources) +
" request probabilities, but got " + P_request);
ASSERT(act_request_vector.size() == (number_requesters * number_resources), "[Error] " + getInstanceName() +
" -> Expecting " + (String)(number_requesters * number_resources) +
" request actvities multiplier, but got " + act_request);
vector<double> P_int_request_vector(number_requesters * number_resources, 0.0);
vector<double> act_int_request_vector(number_requesters * number_resources, 0.0);
vector<double> P_out_request_vector(number_requesters * number_resources, 0.0);
vector<double> act_out_request_vector(number_requesters * number_resources, 0.0);
if(is_requester_first)
{
// Update stage1 arbiter
for(unsigned int i = 0; i < number_requesters; ++i)
{
vector<double> P_arb_request_vector(number_resources, 0.0);
vector<double> act_arb_request_vector(number_resources, 0.0);
for(unsigned int j = 0; j < number_resources; ++j)
{
P_arb_request_vector[j] = P_request_vector[i * number_resources + j];
act_arb_request_vector[j] = act_request_vector[i * number_resources + j];
}
Model* arb = getSubInstance("Stage1Arb" + (String)i);
arb->setProperty("P(Request)", LibUtil::vectorToString(P_arb_request_vector));
arb->setProperty("Act(Request)", LibUtil::vectorToString(act_arb_request_vector));
arb->setProperty("P(CK)", P_CK);
arb->setProperty("Act(CK)", act_CK);
arb->update();
const vector<double>& P_arb_out_request_vector = LibUtil::castStringVector<double>(arb->getGenProperties()->get("P(Grant)").split("[,]"));
const vector<double>& act_arb_out_request_vector = LibUtil::castStringVector<double>(arb->getGenProperties()->get("Act(Grant)").split("[,]"));
for(unsigned int j = 0; j < number_resources; ++j)
{
P_int_request_vector[i * number_resources + j] = P_arb_out_request_vector[j];
act_int_request_vector[i * number_resources + j] = act_arb_out_request_vector[j];
}
}
// Update stage2 arbiter
for(unsigned int i = 0; i < number_resources; ++i)
{
vector<double> P_arb_request_vector(number_requesters, 0.0);
vector<double> act_arb_request_vector(number_requesters, 0.0);
for(unsigned int j = 0; j < number_requesters; ++j)
{
P_arb_request_vector[j] = P_int_request_vector[j * number_resources + i];
act_arb_request_vector[j] = act_int_request_vector[j * number_resources + i];
}
Model* arb = getSubInstance("Stage2Arb" + (String)i);
arb->setProperty("P(Request)", LibUtil::vectorToString(P_arb_request_vector));
arb->setProperty("Act(Request)", LibUtil::vectorToString(act_arb_request_vector));
arb->setProperty("P(CK)", P_CK);
arb->setProperty("Act(CK)", act_CK);
arb->update();
const vector<double>& P_arb_out_request_vector = LibUtil::castStringVector<double>(arb->getGenProperties()->get("P(Grant)").split("[,]"));
const vector<double>& act_arb_out_request_vector = LibUtil::castStringVector<double>(arb->getGenProperties()->get("Act(Grant)").split("[,]"));
for(unsigned int j = 0; j < number_requesters; ++j)
{
P_out_request_vector[j * number_resources + i] = P_arb_out_request_vector[j];
act_out_request_vector[j * number_resources + i] = act_arb_out_request_vector[j];
}
}
}
else
{
}
// Update output probabilities
getGenProperties()->set("P(Grant)", LibUtil::vectorToString(P_out_request_vector));
getGenProperties()->set("Act(Grant)", LibUtil::vectorToString(act_out_request_vector));
return;
}
} // namespace DSENT
|
