PhotonicClos.cc revision 10447
1#include "model/network/PhotonicClos.h" 2 3#include <cmath> 4 5#include "model/ModelGen.h" 6#include "model/timing_graph/ElectricalTimingTree.h" 7#include "model/timing_graph/ElectricalNet.h" 8 9namespace DSENT 10{ 11 using std::sqrt; 12 13 PhotonicClos::PhotonicClos(const String& instance_name_, const TechModel* tech_model_) 14 : ElectricalModel(instance_name_, tech_model_) 15 { 16 initParameters(); 17 initProperties(); 18 } 19 20 PhotonicClos::~PhotonicClos() 21 {} 22 23 void PhotonicClos::initParameters() 24 { 25 // Clock Frequency 26 addParameterName("Frequency"); 27 // Physical Parameters 28 addParameterName("NumberInputSites"); 29 addParameterName("NumberOutputSites"); 30 addParameterName("NumberBitsPerFlit"); 31 // Number of each type of routers 32 addParameterName("NumberIngressRouters"); 33 addParameterName("NumberMiddleRouters"); 34 addParameterName("NumberEgressRouters"); 35 // Optical link parameters 36 addParameterName("SWSR->LinkDataRate"); 37 addParameterName("SWSR->LaserType"); 38 addParameterName("SWSR->RingTuningMethod"); 39 // Router parameters 40 addParameterName("Router->NumberVirtualNetworks"); 41 addParameterName("Router->NumberVirtualChannelsPerVirtualNetwork"); 42 addParameterName("Router->NumberBuffersPerVirtualChannel"); 43 addParameterName("Router->InputPort->BufferModel"); 44 addParameterName("Router->CrossbarModel"); 45 addParameterName("Router->SwitchAllocator->ArbiterModel"); 46 addParameterName("Router->ClockTreeModel"); 47 addParameterName("Router->ClockTree->NumberLevels"); 48 addParameterName("Router->ClockTree->WireLayer"); 49 addParameterName("Router->ClockTree->WireWidthMultiplier"); 50 addParameterName("Router->ClockTree->WireSpacingMultiplier", 3.0); 51 // Link parameters 52 addParameterName("Link->WireLayer"); 53 addParameterName("Link->WireWidthMultiplier"); 54 addParameterName("Link->WireSpacingMultiplier"); 55 return; 56 } 57 58 void PhotonicClos::initProperties() 59 { 60 addPropertyName("InputSitePitch"); 61 addPropertyName("OutputSitePitch"); 62 addPropertyName("SWSR->OptUtil", 1.0); 63 return; 64 } 65 66 PhotonicClos* PhotonicClos::clone() const 67 { 68 // TODO 69 return NULL; 70 } 71 72 void PhotonicClos::constructModel() 73 { 74 // Get input parameters 75 double clock_freq = getParameter("Frequency"); 76 unsigned int number_input_sites = getParameter("NumberInputSites").toUInt(); 77 unsigned int number_output_sites = getParameter("NumberOutputSites").toUInt(); 78 unsigned int number_bits_per_flit = getParameter("NumberBitsPerFlit").toUInt(); 79 unsigned int number_ingress_routers = getParameter("NumberIngressRouters").toUInt(); 80 unsigned int number_middle_routers = getParameter("NumberMiddleRouters").toUInt(); 81 unsigned int number_egress_routers = getParameter("NumberEgressRouters").toUInt(); 82 83 ASSERT(clock_freq > 0, "[Error] " + getInstanceName() + 84 " -> Clock frequency must be > 0!"); 85 ASSERT(number_input_sites > 0, "[Error] " + getInstanceName() + 86 " -> Number of input sites must be > 0!"); 87 ASSERT(number_output_sites > 0, "[Error] " + getInstanceName() + 88 " -> Number of output sites must be > 0!"); 89 ASSERT(number_bits_per_flit > 0, "[Error] " + getInstanceName() + 90 " -> Number of bits per flit must be > 0!"); 91 ASSERT(number_ingress_routers > 0, "[Error] " + getInstanceName() + 92 " -> Number of ingress routers must be > 0!"); 93 ASSERT(number_middle_routers > 0, "[Error] " + getInstanceName() + 94 " -> Number of middle routers must be > 0!"); 95 ASSERT(number_egress_routers > 0, "[Error] " + getInstanceName() + 96 " -> Number of egress routers must be > 0!"); 97 98 // Get input parameters that will be forwarded to the sub instances 99 const String& swsr_link_data_rate = getParameter("SWSR->LinkDataRate"); 100 const String& swsr_laser_type = getParameter("SWSR->LaserType"); 101 const String& swsr_ring_tuning_method = getParameter("SWSR->RingTuningMethod"); 102 const String& router_number_vns = getParameter("Router->NumberVirtualNetworks"); 103 const String& router_number_vcs_per_vn = getParameter("Router->NumberVirtualChannelsPerVirtualNetwork"); 104 const String& router_number_bufs_per_vc = getParameter("Router->NumberBuffersPerVirtualChannel"); 105 const String& router_buffer_model = getParameter("Router->InputPort->BufferModel"); 106 const String& router_crossbar_model = getParameter("Router->CrossbarModel"); 107 const String& link_wire_layer = getParameter("Link->WireLayer"); 108 const String& link_wire_width_multiplier = getParameter("Link->WireWidthMultiplier"); 109 const String& link_wire_spacing_multiplier = getParameter("Link->WireSpacingMultiplier"); 110 111 // Calculate properties from input parameters 112 unsigned int ingress_router_number_input_ports = number_input_sites / number_ingress_routers; 113 unsigned int ingress_router_number_output_ports = number_middle_routers; 114 unsigned int middle_router_number_input_ports = number_ingress_routers; 115 unsigned int middle_router_number_output_ports = number_egress_routers; 116 unsigned int egress_router_number_input_ports = number_middle_routers; 117 unsigned int egress_router_number_output_ports = number_output_sites / number_egress_routers; 118 unsigned int number_input_to_ingress_links = number_input_sites; 119 unsigned int number_ingress_to_middle_links = number_ingress_routers * number_middle_routers; 120 unsigned int number_middle_to_egress_links = number_middle_routers * number_egress_routers; 121 unsigned int number_egress_to_output_links = number_output_sites; 122 123 getGenProperties()->set("NumberInputSitesPerIngressRouter", ingress_router_number_input_ports); 124 getGenProperties()->set("NumberOutputSitesPerEgressRouter", egress_router_number_output_ports); 125 getGenProperties()->set("IngressRouter->NumberInputPorts", ingress_router_number_input_ports); 126 getGenProperties()->set("IngressRouter->NumberOutputPorts", ingress_router_number_output_ports); 127 getGenProperties()->set("MiddleRouter->NumberInputPorts", middle_router_number_input_ports); 128 getGenProperties()->set("MiddleRouter->NumberOutputPorts", middle_router_number_output_ports); 129 getGenProperties()->set("EgressRouter->NumberInputPorts", egress_router_number_input_ports); 130 getGenProperties()->set("EgressRouter->NumberOutputPorts", egress_router_number_output_ports); 131 132 // Create ports 133 createInputPort("CK"); 134 135 // Init ingress router 136 ElectricalModel* ingress_router = (ElectricalModel*)ModelGen::createModel("Router", "IngressRouter", getTechModel()); 137 ingress_router->setParameter("NumberInputPorts", ingress_router_number_input_ports); 138 ingress_router->setParameter("NumberOutputPorts", ingress_router_number_output_ports); 139 ingress_router->setParameter("NumberVirtualNetworks", router_number_vns); 140 ingress_router->setParameter("NumberVirtualChannelsPerVirtualNetwork", router_number_vcs_per_vn); 141 ingress_router->setParameter("NumberBuffersPerVirtualChannel", router_number_bufs_per_vc); 142 ingress_router->setParameter("NumberBitsPerFlit", number_bits_per_flit); 143 ingress_router->setParameter("InputPort->BufferModel", router_buffer_model); 144 ingress_router->setParameter("CrossbarModel", router_crossbar_model); 145 ingress_router->setParameter("SwitchAllocator->ArbiterModel", getParameter("Router->SwitchAllocator->ArbiterModel")); 146 ingress_router->setParameter("ClockTreeModel", getParameter("Router->ClockTreeModel")); 147 ingress_router->setParameter("ClockTree->NumberLevels", getParameter("Router->ClockTree->NumberLevels")); 148 ingress_router->setParameter("ClockTree->WireLayer", getParameter("Router->ClockTree->WireLayer")); 149 ingress_router->setParameter("ClockTree->WireWidthMultiplier", getParameter("Router->ClockTree->WireWidthMultiplier")); 150 ingress_router->setParameter("ClockTree->WireSpacingMultiplier", getParameter("Router->ClockTree->WireSpacingMultiplier")); 151 ingress_router->construct(); 152 // Init middle routers 153 ElectricalModel* middle_router = (ElectricalModel*)ModelGen::createModel("Router", "MiddleRouter", getTechModel()); 154 middle_router->setParameter("NumberInputPorts", middle_router_number_input_ports); 155 middle_router->setParameter("NumberOutputPorts", middle_router_number_output_ports); 156 middle_router->setParameter("NumberVirtualNetworks", router_number_vns); 157 middle_router->setParameter("NumberVirtualChannelsPerVirtualNetwork", router_number_vcs_per_vn); 158 middle_router->setParameter("NumberBuffersPerVirtualChannel", router_number_bufs_per_vc); 159 middle_router->setParameter("NumberBitsPerFlit", number_bits_per_flit); 160 middle_router->setParameter("InputPort->BufferModel", router_buffer_model); 161 middle_router->setParameter("CrossbarModel", router_crossbar_model); 162 middle_router->setParameter("SwitchAllocator->ArbiterModel", getParameter("Router->SwitchAllocator->ArbiterModel")); 163 middle_router->setParameter("ClockTreeModel", getParameter("Router->ClockTreeModel")); 164 middle_router->setParameter("ClockTree->NumberLevels", getParameter("Router->ClockTree->NumberLevels")); 165 middle_router->setParameter("ClockTree->WireLayer", getParameter("Router->ClockTree->WireLayer")); 166 middle_router->setParameter("ClockTree->WireWidthMultiplier", getParameter("Router->ClockTree->WireWidthMultiplier")); 167 middle_router->setParameter("ClockTree->WireSpacingMultiplier", getParameter("Router->ClockTree->WireSpacingMultiplier")); 168 middle_router->construct(); 169 // Init egress routers 170 ElectricalModel* egress_router = (ElectricalModel*)ModelGen::createModel("Router", "EgressRouter", getTechModel()); 171 egress_router->setParameter("NumberInputPorts", egress_router_number_input_ports); 172 egress_router->setParameter("NumberOutputPorts", egress_router_number_output_ports); 173 egress_router->setParameter("NumberVirtualNetworks", router_number_vns); 174 egress_router->setParameter("NumberVirtualChannelsPerVirtualNetwork", router_number_vcs_per_vn); 175 egress_router->setParameter("NumberBuffersPerVirtualChannel", router_number_bufs_per_vc); 176 egress_router->setParameter("NumberBitsPerFlit", number_bits_per_flit); 177 egress_router->setParameter("InputPort->BufferModel", router_buffer_model); 178 egress_router->setParameter("CrossbarModel", router_crossbar_model); 179 egress_router->setParameter("SwitchAllocator->ArbiterModel", getParameter("Router->SwitchAllocator->ArbiterModel")); 180 egress_router->setParameter("ClockTreeModel", getParameter("Router->ClockTreeModel")); 181 egress_router->setParameter("ClockTree->NumberLevels", getParameter("Router->ClockTree->NumberLevels")); 182 egress_router->setParameter("ClockTree->WireLayer", getParameter("Router->ClockTree->WireLayer")); 183 egress_router->setParameter("ClockTree->WireWidthMultiplier", getParameter("Router->ClockTree->WireWidthMultiplier")); 184 egress_router->setParameter("ClockTree->WireSpacingMultiplier", getParameter("Router->ClockTree->WireSpacingMultiplier")); 185 egress_router->construct(); 186 // Init input to ingress link 187 ElectricalModel* input_to_ingress_link = (ElectricalModel*)ModelGen::createModel("RepeatedLink", "InputToIngressLink", getTechModel()); 188 input_to_ingress_link->setParameter("NumberBits", number_bits_per_flit); 189 input_to_ingress_link->setParameter("WireLayer", link_wire_layer); 190 input_to_ingress_link->setParameter("WireWidthMultiplier", link_wire_width_multiplier); 191 input_to_ingress_link->setParameter("WireSpacingMultiplier", link_wire_spacing_multiplier); 192 input_to_ingress_link->construct(); 193 // Init ingress to middle link 194 ElectricalModel* ingress_to_middle_link = (ElectricalModel*)ModelGen::createModel("SWSRLink", "IngressToMiddleLink", getTechModel()); 195 ingress_to_middle_link->setParameter("NumberBits", number_bits_per_flit); 196 ingress_to_middle_link->setParameter("CoreDataRate", clock_freq); 197 ingress_to_middle_link->setParameter("LinkDataRate", swsr_link_data_rate); 198 ingress_to_middle_link->setParameter("LaserType", swsr_laser_type); 199 ingress_to_middle_link->setParameter("RingTuningMethod", swsr_ring_tuning_method); 200 ingress_to_middle_link->construct(); 201 // Init middle to egress link 202 ElectricalModel* middle_to_egress_link = (ElectricalModel*)ModelGen::createModel("SWSRLink", "MiddleToEgressLink", getTechModel()); 203 middle_to_egress_link->setParameter("NumberBits", number_bits_per_flit); 204 middle_to_egress_link->setParameter("CoreDataRate", clock_freq); 205 middle_to_egress_link->setParameter("LinkDataRate", swsr_link_data_rate); 206 middle_to_egress_link->setParameter("LaserType", swsr_laser_type); 207 middle_to_egress_link->setParameter("RingTuningMethod", swsr_ring_tuning_method); 208 middle_to_egress_link->construct(); 209 // Init egress to output link 210 ElectricalModel* egress_to_output_link = (ElectricalModel*)ModelGen::createModel("RepeatedLink", "EgressToOutputLink", getTechModel()); 211 egress_to_output_link->setParameter("NumberBits", number_bits_per_flit); 212 egress_to_output_link->setParameter("WireLayer", link_wire_layer); 213 egress_to_output_link->setParameter("WireWidthMultiplier", link_wire_width_multiplier); 214 egress_to_output_link->setParameter("WireSpacingMultiplier", link_wire_spacing_multiplier); 215 egress_to_output_link->construct(); 216 217 // Connect ports 218 createNet("InputToIngressLink_Out", makeNetIndex(0, number_bits_per_flit - 1)); 219 createNet("InputToIngressLink_In", makeNetIndex(0, number_bits_per_flit - 1)); 220 portConnect(input_to_ingress_link, "In", "InputToIngressLink_In"); 221 portConnect(input_to_ingress_link, "Out", "InputToIngressLink_Out"); 222 223 createNet("IngressToMiddleLink_In", makeNetIndex(0, number_bits_per_flit - 1)); 224 createNet("IngressToMiddleLink_Out", makeNetIndex(0, number_bits_per_flit - 1)); 225 portConnect(ingress_to_middle_link, "In", "IngressToMiddleLink_In"); 226 portConnect(ingress_to_middle_link, "Out", "IngressToMiddleLink_Out"); 227 228 createNet("MiddleToEgressLink_In", makeNetIndex(0, number_bits_per_flit - 1)); 229 createNet("MiddleToEgressLink_Out", makeNetIndex(0, number_bits_per_flit - 1)); 230 portConnect(middle_to_egress_link, "In", "MiddleToEgressLink_In"); 231 portConnect(middle_to_egress_link, "Out", "MiddleToEgressLink_Out"); 232 233 createNet("EgressToOutputLink_In", makeNetIndex(0, number_bits_per_flit - 1)); 234 createNet("EgressToOutputLink_Out", makeNetIndex(0, number_bits_per_flit - 1)); 235 portConnect(egress_to_output_link, "In", "EgressToOutputLink_In"); 236 portConnect(egress_to_output_link, "Out", "EgressToOutputLink_Out"); 237 238 portConnect(ingress_router, "CK", "CK"); 239 for(unsigned int i = 0; i < ingress_router_number_input_ports; ++i) 240 { 241 createNet("IngressRouter_In" + (String)i, makeNetIndex(0, number_bits_per_flit-1)); 242 for (unsigned int j = 0; j < number_bits_per_flit; ++j) 243 assignVirtualFanout("IngressRouter_In" + (String)i, makeNetIndex(j), "InputToIngressLink_Out", makeNetIndex(j)); 244 portConnect(ingress_router, "FlitIn" + (String)i, "IngressRouter_In" + (String)i); 245 } 246 for(unsigned int i = 0; i < ingress_router_number_output_ports; ++i) 247 { 248 // VFI 249 portConnect(ingress_router, "FlitOut" + (String)i, "IngressToMiddleLink_In"); 250 } 251 portConnect(middle_router, "CK", "CK"); 252 for(unsigned int i = 0; i < middle_router_number_input_ports; ++i) 253 { 254 createNet("MiddleRouter_In" + (String)i, makeNetIndex(0, number_bits_per_flit-1)); 255 for (unsigned int j = 0; j < number_bits_per_flit; ++j) 256 assignVirtualFanout("MiddleRouter_In" + (String)i, makeNetIndex(j), "IngressToMiddleLink_Out", makeNetIndex(j)); 257 portConnect(middle_router, "FlitIn" + (String)i, "MiddleRouter_In" + (String)i); 258 } 259 for(unsigned int i = 0; i < middle_router_number_output_ports; ++i) 260 { 261 // VFI 262 portConnect(middle_router, "FlitOut" + (String)i, "MiddleToEgressLink_In"); 263 } 264 portConnect(egress_router, "CK", "CK"); 265 for(unsigned int i = 0; i < egress_router_number_input_ports; ++i) 266 { 267 createNet("EgressRouter_In" + (String)i, makeNetIndex(0, number_bits_per_flit-1)); 268 for (unsigned int j = 0; j < number_bits_per_flit; ++j) 269 assignVirtualFanout("EgressRouter_In" + (String)i, makeNetIndex(j), "MiddleToEgressLink_Out", makeNetIndex(j)); 270 portConnect(egress_router, "FlitIn" + (String)i, "EgressRouter_In" + (String)i); 271 } 272 for(unsigned int i = 0; i < egress_router_number_output_ports; ++i) 273 { 274 // VFI 275 portConnect(egress_router, "FlitOut" + (String)i, "EgressToOutputLink_In"); 276 } 277 278 // Create area, power, and event results 279 createElectricalResults(); 280 createElectricalEventResult("AvgUnicast"); 281 createElectricalEventResult("AvgBroadcast"); 282 addNddPowerResult(new Result("Laser")); 283 addNddPowerResult(new Result("RingTuning")); 284 addAreaResult(new Result("Photonic")); 285 286 // Add all instances 287 addSubInstances(ingress_router, number_ingress_routers); 288 addElectricalSubResults(ingress_router, number_ingress_routers); 289 addSubInstances(middle_router, number_middle_routers); 290 addElectricalSubResults(middle_router, number_middle_routers); 291 addSubInstances(egress_router, number_egress_routers); 292 addElectricalSubResults(egress_router, number_egress_routers); 293 addSubInstances(input_to_ingress_link, number_input_to_ingress_links); 294 addElectricalSubResults(input_to_ingress_link, number_input_to_ingress_links); 295 addSubInstances(ingress_to_middle_link, number_ingress_to_middle_links); 296 addElectricalSubResults(ingress_to_middle_link, number_ingress_to_middle_links); 297 getAreaResult("Photonic")->addSubResult(ingress_to_middle_link->getAreaResult("Photonic"), "IngressToMiddleLink", number_ingress_to_middle_links); 298 getNddPowerResult("Laser")->addSubResult(ingress_to_middle_link->getNddPowerResult("Laser"), "IngressToMiddleLink", number_ingress_to_middle_links); 299 getNddPowerResult("RingTuning")->addSubResult(ingress_to_middle_link->getNddPowerResult("RingTuning"), "IngressToMiddleLink", number_ingress_to_middle_links); 300 addSubInstances(middle_to_egress_link, number_middle_to_egress_links); 301 addElectricalSubResults(middle_to_egress_link, number_middle_to_egress_links); 302 getAreaResult("Photonic")->addSubResult(middle_to_egress_link->getAreaResult("Photonic"), "MiddletoEgressLink", number_middle_to_egress_links); 303 getNddPowerResult("Laser")->addSubResult(middle_to_egress_link->getNddPowerResult("Laser"), "MiddleToEgressLink", number_middle_to_egress_links); 304 getNddPowerResult("RingTuning")->addSubResult(middle_to_egress_link->getNddPowerResult("RingTuning"), "MiddleToEgressLink", number_middle_to_egress_links); 305 addSubInstances(egress_to_output_link, number_egress_to_output_links); 306 addElectricalSubResults(egress_to_output_link, number_egress_to_output_links); 307 308 // Update unicast event 309 Result* avg_unicast_event = getEventResult("AvgUnicast"); 310 avg_unicast_event->addSubResult(input_to_ingress_link->getEventResult("Send"), "InputToIngressLink", 1.0); 311 if(ingress_router->hasEventResult("WriteBuffer")) 312 { 313 avg_unicast_event->addSubResult(ingress_router->getEventResult("WriteBuffer"), "IngressRouter", 1.0); 314 } 315 if(ingress_router->hasEventResult("ReadBuffer")) 316 { 317 avg_unicast_event->addSubResult(ingress_router->getEventResult("ReadBuffer"), "IngressRouter", 1.0); 318 } 319 avg_unicast_event->addSubResult(ingress_router->getEventResult("TraverseCrossbar->Multicast1"), "IngressRouter", 1.0); 320 avg_unicast_event->addSubResult(ingress_to_middle_link->getEventResult("Send"), "IngressToMiddleLink", 1.0); 321 if(middle_router->hasEventResult("WriteBuffer")) 322 { 323 avg_unicast_event->addSubResult(middle_router->getEventResult("WriteBuffer"), "MiddleRouter", 1.0); 324 } 325 if(middle_router->hasEventResult("ReadBuffer")) 326 { 327 avg_unicast_event->addSubResult(middle_router->getEventResult("ReadBuffer"), "MiddleRouter", 1.0); 328 } 329 avg_unicast_event->addSubResult(middle_router->getEventResult("TraverseCrossbar->Multicast1"), "MiddleRouter", 1.0); 330 avg_unicast_event->addSubResult(middle_to_egress_link->getEventResult("Send"), "MiddleToEgressLink", 1.0); 331 if(egress_router->hasEventResult("WriteBuffer")) 332 { 333 avg_unicast_event->addSubResult(egress_router->getEventResult("WriteBuffer"), "EgressRouter", 1.0); 334 } 335 if(egress_router->hasEventResult("ReadBuffer")) 336 { 337 avg_unicast_event->addSubResult(egress_router->getEventResult("ReadBuffer"), "EgressRouter", 1.0); 338 } 339 avg_unicast_event->addSubResult(egress_router->getEventResult("TraverseCrossbar->Multicast1"), "EgressRouter", 1.0); 340 avg_unicast_event->addSubResult(egress_to_output_link->getEventResult("Send"), "EgressToOutputLink", 1.0); 341 342 // Update broadcast event 343 Result* avg_broadcast_event = getEventResult("AvgBroadcast"); 344 avg_broadcast_event->addSubResult(input_to_ingress_link->getEventResult("Send"), "InputToIngressLink", 1.0); 345 if(ingress_router->hasEventResult("WriteBuffer")) 346 { 347 avg_broadcast_event->addSubResult(ingress_router->getEventResult("WriteBuffer"), "IngressRouter", 1.0); 348 } 349 if(ingress_router->hasEventResult("ReadBuffer")) 350 { 351 avg_broadcast_event->addSubResult(ingress_router->getEventResult("ReadBuffer"), "IngressRouter", 1.0); 352 } 353 avg_broadcast_event->addSubResult(ingress_router->getEventResult("TraverseCrossbar->Multicast1"), "IngressRouter", 1.0); 354 avg_broadcast_event->addSubResult(ingress_to_middle_link->getEventResult("Send"), "IngressToMiddleLink", 1.0); 355 if(middle_router->hasEventResult("WriteBuffer")) 356 { 357 avg_broadcast_event->addSubResult(middle_router->getEventResult("WriteBuffer"), "MiddleRouter", 1.0); 358 } 359 if(middle_router->hasEventResult("ReadBuffer")) 360 { 361 avg_broadcast_event->addSubResult(middle_router->getEventResult("ReadBuffer"), "MiddleRouter", 1.0); 362 } 363 avg_broadcast_event->addSubResult(middle_router->getEventResult("TraverseCrossbar->Multicast1"), "MiddleRouter", 1.0); 364 avg_broadcast_event->addSubResult(middle_to_egress_link->getEventResult("Send"), "MiddleToEgressLink", number_egress_routers); 365 if(egress_router->hasEventResult("WriteBuffer")) 366 { 367 avg_broadcast_event->addSubResult(egress_router->getEventResult("WriteBuffer"), "EgressRouter", number_egress_routers); 368 } 369 if(egress_router->hasEventResult("ReadBuffer")) 370 { 371 avg_broadcast_event->addSubResult(egress_router->getEventResult("ReadBuffer"), "EgressRouter", number_egress_routers); 372 } 373 avg_broadcast_event->addSubResult(egress_router->getEventResult("TraverseCrossbar->Multicast" + (String)number_egress_routers), "EgressRouter", 1.0); 374 avg_broadcast_event->addSubResult(egress_to_output_link->getEventResult("Send"), "EgressToOutputLink", number_output_sites); 375 return; 376 } 377 378 void PhotonicClos::updateModel() 379 { 380 // Assumes waveguide runs adjacent to ingress and egress routers 381 // Assumes input sites belonging to each ingress router are centered around the ingress router 382 // Assumes middle routers are distributed around the chip adjacent to the main waveguide 383 // Assumes output sites belonging to each egress router are centered around the egress router 384 385 // Get properties 386 double input_site_pitch = getProperty("InputSitePitch").toDouble(); 387 double output_site_pitch = getProperty("OutputSitePitch").toDouble(); 388 double clock_freq = getParameter("Frequency"); 389 const double swsr_opt_util = getProperty("SWSR->OptUtil"); 390 391 ASSERT(input_site_pitch > 0, "[Error] " + getInstanceName() + 392 " -> Input site pitch must be > 0!"); 393 ASSERT(output_site_pitch > 0, "[Error] " + getInstanceName() + 394 " -> Output site pitch must be > 0!"); 395 396 unsigned int number_input_sites_per_ingress_router = getGenProperties()->get("NumberInputSitesPerIngressRouter"); 397 unsigned int number_ingress_routers = getParameter("NumberIngressRouters"); 398 unsigned int number_output_sites_per_egress_router = getGenProperties()->get("NumberOutputSitesPerEgressRouter"); 399 unsigned int number_egress_routers = getParameter("NumberEgressRouters"); 400 double delay = 1.0 / clock_freq; 401 402 //Calculate the length of the waveguide 403 double input_to_ingress_link_length = input_site_pitch * (sqrt(number_input_sites_per_ingress_router) - 1.0); 404 double input_to_ingress_link_delay = delay * 0.8; 405 double ingress_to_middle_link_length = input_site_pitch * (sqrt(number_input_sites_per_ingress_router) * number_ingress_routers); 406 double middle_to_egress_link_length = output_site_pitch * (sqrt(number_output_sites_per_egress_router) * number_egress_routers); 407 double egress_to_output_link_length = output_site_pitch * (sqrt(number_output_sites_per_egress_router) - 1.0); 408 double egress_to_output_link_delay = delay * 0.8; 409 double ingress_router_delay = delay; 410 double middle_router_delay = delay; 411 double egress_router_delay = delay; 412 413 Model* input_to_ingress_link = getSubInstance("InputToIngressLink"); 414 input_to_ingress_link->setProperty("WireLength", input_to_ingress_link_length); 415 input_to_ingress_link->setProperty("Delay", input_to_ingress_link_delay); 416 input_to_ingress_link->setProperty("IsKeepParity", "TRUE"); 417 input_to_ingress_link->update(); 418 419 Model* ingress_to_middle_link = getSubInstance("IngressToMiddleLink"); 420 ingress_to_middle_link->setProperty("Length", ingress_to_middle_link_length); 421 ingress_to_middle_link->setProperty("OptUtil", swsr_opt_util); 422 ingress_to_middle_link->update(); 423 424 Model* middle_to_egress_link = getSubInstance("MiddleToEgressLink"); 425 middle_to_egress_link->setProperty("Length", middle_to_egress_link_length); 426 middle_to_egress_link->setProperty("OptUtil", swsr_opt_util); 427 middle_to_egress_link->update(); 428 429 Model* egress_to_output_link = getSubInstance("EgressToOutputLink"); 430 egress_to_output_link->setProperty("WireLength", egress_to_output_link_length); 431 egress_to_output_link->setProperty("Delay", egress_to_output_link_delay); 432 egress_to_output_link->setProperty("IsKeepParity", "TRUE"); 433 egress_to_output_link->update(); 434 435 ElectricalModel* ingress_router = (ElectricalModel*)getSubInstance("IngressRouter"); 436 ingress_router->update(); 437 ElectricalTimingTree ingress_router_timing_tree("IngressRouter", ingress_router); 438 ingress_router_timing_tree.performTimingOpt(ingress_router->getNet("CK"), ingress_router_delay); 439 440 ElectricalModel* middle_router = (ElectricalModel*)getSubInstance("MiddleRouter"); 441 middle_router->update(); 442 ElectricalTimingTree middle_router_timing_tree("MiddleRouter", middle_router); 443 middle_router_timing_tree.performTimingOpt(middle_router->getNet("CK"), middle_router_delay); 444 445 ElectricalModel* egress_router = (ElectricalModel*)getSubInstance("EgressRouter"); 446 egress_router->update(); 447 ElectricalTimingTree egress_router_timing_tree("EgressRouter", egress_router); 448 egress_router_timing_tree.performTimingOpt(egress_router->getNet("CK"), egress_router_delay); 449 450 return; 451 } 452 453 void PhotonicClos::propagateTransitionInfo() 454 { 455 // Get parameters 456 double clock_freq = getParameter("Frequency"); 457 double swsr_link_data_rate = getParameter("SWSR->LinkDataRate"); 458 459 // Get properties 460 unsigned int ingress_router_number_input_ports = getGenProperties()->get("IngressRouter->NumberInputPorts"); 461 unsigned int middle_router_number_input_ports = getGenProperties()->get("MiddleRouter->NumberInputPorts"); 462 unsigned int egress_router_number_input_ports = getGenProperties()->get("EgressRouter->NumberInputPorts"); 463 464 ElectricalModel* input_to_ingress_link = (ElectricalModel*)getSubInstance("InputToIngressLink"); 465 assignPortTransitionInfo(input_to_ingress_link, "In", TransitionInfo(0.25, 0.25, 0.25)); 466 input_to_ingress_link->use(); 467 468 ElectricalModel* ingress_to_middle_link = (ElectricalModel*)getSubInstance("IngressToMiddleLink"); 469 assignPortTransitionInfo(ingress_to_middle_link, "LinkCK", TransitionInfo(0.0, (double) clock_freq / (swsr_link_data_rate * 2.0), 0.0)); 470 assignPortTransitionInfo(ingress_to_middle_link, "In", TransitionInfo(0.25, 0.25, 0.25)); 471 ingress_to_middle_link->use(); 472 473 ElectricalModel* middle_to_egress_link = (ElectricalModel*)getSubInstance("MiddleToEgressLink"); 474 assignPortTransitionInfo(middle_to_egress_link, "LinkCK", TransitionInfo(0.0, (double) clock_freq / (swsr_link_data_rate * 2.0), 0.0)); 475 assignPortTransitionInfo(middle_to_egress_link, "In", TransitionInfo(0.25, 0.25, 0.25)); 476 middle_to_egress_link->use(); 477 478 ElectricalModel* egress_to_output_link = (ElectricalModel*)getSubInstance("EgressToOutputLink"); 479 assignPortTransitionInfo(egress_to_output_link, "In", TransitionInfo(0.25, 0.25, 0.25)); 480 egress_to_output_link->use(); 481 482 ElectricalModel* ingress_router = (ElectricalModel*)getSubInstance("IngressRouter"); 483 for(unsigned int i = 0; i < ingress_router_number_input_ports; ++i) 484 { 485 assignPortTransitionInfo(ingress_router, "FlitIn" + (String)i, TransitionInfo(0.25, 0.25, 0.25)); 486 } 487 assignPortTransitionInfo(ingress_router, "CK", TransitionInfo(0.0, 1.0, 0.0)); 488 ingress_router->getGenProperties()->set("UseModelEvent", ""); 489 ingress_router->use(); 490 491 ElectricalModel* middle_router = (ElectricalModel*)getSubInstance("MiddleRouter"); 492 for(unsigned int i = 0; i < middle_router_number_input_ports; ++i) 493 { 494 assignPortTransitionInfo(middle_router, "FlitIn" + (String)i, TransitionInfo(0.25, 0.25, 0.25)); 495 } 496 assignPortTransitionInfo(middle_router, "CK", TransitionInfo(0.0, 1.0, 0.0)); 497 middle_router->getGenProperties()->set("UseModelEvent", ""); 498 middle_router->use(); 499 500 ElectricalModel* egress_router = (ElectricalModel*)getSubInstance("EgressRouter"); 501 for(unsigned int i = 0; i < egress_router_number_input_ports; ++i) 502 { 503 assignPortTransitionInfo(egress_router, "FlitIn" + (String)i, TransitionInfo(0.25, 0.25, 0.25)); 504 } 505 assignPortTransitionInfo(egress_router, "CK", TransitionInfo(0.0, 1.0, 0.0)); 506 egress_router->getGenProperties()->set("UseModelEvent", ""); 507 egress_router->use(); 508 509 return; 510 } 511} // namespace DSENT 512 513