ElectricalMesh.cc revision 10448
110448Snilay@cs.wisc.edu/* Copyright (c) 2012 Massachusetts Institute of Technology 210448Snilay@cs.wisc.edu * 310448Snilay@cs.wisc.edu * Permission is hereby granted, free of charge, to any person obtaining a copy 410448Snilay@cs.wisc.edu * of this software and associated documentation files (the "Software"), to deal 510448Snilay@cs.wisc.edu * in the Software without restriction, including without limitation the rights 610448Snilay@cs.wisc.edu * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 710448Snilay@cs.wisc.edu * copies of the Software, and to permit persons to whom the Software is 810448Snilay@cs.wisc.edu * furnished to do so, subject to the following conditions: 910448Snilay@cs.wisc.edu * 1010448Snilay@cs.wisc.edu * The above copyright notice and this permission notice shall be included in 1110448Snilay@cs.wisc.edu * all copies or substantial portions of the Software. 1210448Snilay@cs.wisc.edu * 1310448Snilay@cs.wisc.edu * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 1410448Snilay@cs.wisc.edu * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 1510448Snilay@cs.wisc.edu * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 1610448Snilay@cs.wisc.edu * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 1710448Snilay@cs.wisc.edu * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 1810448Snilay@cs.wisc.edu * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 1910448Snilay@cs.wisc.edu * THE SOFTWARE. 2010448Snilay@cs.wisc.edu */ 2110448Snilay@cs.wisc.edu 2210447Snilay@cs.wisc.edu#include "model/network/ElectricalMesh.h" 2310447Snilay@cs.wisc.edu 2410447Snilay@cs.wisc.edu#include <cmath> 2510447Snilay@cs.wisc.edu 2610447Snilay@cs.wisc.edu#include "model/PortInfo.h" 2710447Snilay@cs.wisc.edu#include "model/EventInfo.h" 2810447Snilay@cs.wisc.edu#include "model/TransitionInfo.h" 2910447Snilay@cs.wisc.edu#include "model/ModelGen.h" 3010447Snilay@cs.wisc.edu#include "model/std_cells/StdCellLib.h" 3110447Snilay@cs.wisc.edu#include "model/timing_graph/ElectricalTimingTree.h" 3210447Snilay@cs.wisc.edu#include "model/timing_graph/ElectricalNet.h" 3310447Snilay@cs.wisc.edu 3410447Snilay@cs.wisc.edunamespace DSENT 3510447Snilay@cs.wisc.edu{ 3610447Snilay@cs.wisc.edu using std::sqrt; 3710447Snilay@cs.wisc.edu 3810447Snilay@cs.wisc.edu ElectricalMesh::ElectricalMesh(const String& instance_name_, const TechModel* tech_model_) 3910447Snilay@cs.wisc.edu : ElectricalModel(instance_name_, tech_model_) 4010447Snilay@cs.wisc.edu { 4110447Snilay@cs.wisc.edu initParameters(); 4210447Snilay@cs.wisc.edu initProperties(); 4310447Snilay@cs.wisc.edu } 4410447Snilay@cs.wisc.edu 4510447Snilay@cs.wisc.edu ElectricalMesh::~ElectricalMesh() 4610447Snilay@cs.wisc.edu {} 4710447Snilay@cs.wisc.edu 4810447Snilay@cs.wisc.edu void ElectricalMesh::initParameters() 4910447Snilay@cs.wisc.edu { 5010447Snilay@cs.wisc.edu // Clock Frequency 5110447Snilay@cs.wisc.edu addParameterName("Frequency"); 5210447Snilay@cs.wisc.edu // Physical Parameters 5310447Snilay@cs.wisc.edu addParameterName("NumberSites"); 5410447Snilay@cs.wisc.edu addParameterName("NumberBitsPerFlit"); 5510447Snilay@cs.wisc.edu // Concentration factor 5610447Snilay@cs.wisc.edu addParameterName("NumberSitesPerRouter"); 5710447Snilay@cs.wisc.edu // Router parameters 5810447Snilay@cs.wisc.edu addParameterName("Router->NumberVirtualNetworks"); 5910447Snilay@cs.wisc.edu addParameterName("Router->NumberVirtualChannelsPerVirtualNetwork"); 6010447Snilay@cs.wisc.edu addParameterName("Router->NumberBuffersPerVirtualChannel"); 6110447Snilay@cs.wisc.edu addParameterName("Router->InputPort->BufferModel"); 6210447Snilay@cs.wisc.edu addParameterName("Router->CrossbarModel"); 6310447Snilay@cs.wisc.edu addParameterName("Router->SwitchAllocator->ArbiterModel"); 6410447Snilay@cs.wisc.edu addParameterName("Router->ClockTreeModel"); 6510447Snilay@cs.wisc.edu addParameterName("Router->ClockTree->NumberLevels"); 6610447Snilay@cs.wisc.edu addParameterName("Router->ClockTree->WireLayer"); 6710447Snilay@cs.wisc.edu addParameterName("Router->ClockTree->WireWidthMultiplier"); 6810447Snilay@cs.wisc.edu addParameterName("Router->ClockTree->WireSpacingMultiplier", 3.0); 6910447Snilay@cs.wisc.edu // Link parameters 7010447Snilay@cs.wisc.edu addParameterName("Link->WireLayer"); 7110447Snilay@cs.wisc.edu addParameterName("Link->WireWidthMultiplier"); 7210447Snilay@cs.wisc.edu addParameterName("Link->WireSpacingMultiplier"); 7310447Snilay@cs.wisc.edu return; 7410447Snilay@cs.wisc.edu } 7510447Snilay@cs.wisc.edu 7610447Snilay@cs.wisc.edu void ElectricalMesh::initProperties() 7710447Snilay@cs.wisc.edu { 7810447Snilay@cs.wisc.edu addPropertyName("SitePitch"); 7910447Snilay@cs.wisc.edu return; 8010447Snilay@cs.wisc.edu } 8110447Snilay@cs.wisc.edu 8210447Snilay@cs.wisc.edu ElectricalMesh* ElectricalMesh::clone() const 8310447Snilay@cs.wisc.edu { 8410447Snilay@cs.wisc.edu // TODO 8510447Snilay@cs.wisc.edu return NULL; 8610447Snilay@cs.wisc.edu } 8710447Snilay@cs.wisc.edu 8810447Snilay@cs.wisc.edu void ElectricalMesh::constructModel() 8910447Snilay@cs.wisc.edu { 9010447Snilay@cs.wisc.edu // Get input paramters 9110447Snilay@cs.wisc.edu unsigned int number_sites = getParameter("NumberSites").toUInt(); 9210447Snilay@cs.wisc.edu unsigned int number_bits_per_flit = getParameter("NumberBitsPerFlit").toUInt(); 9310447Snilay@cs.wisc.edu unsigned int number_sites_per_router = getParameter("NumberSitesPerRouter").toUInt(); 9410447Snilay@cs.wisc.edu 9510447Snilay@cs.wisc.edu ASSERT(number_sites > 0, "[Error] " + getInstanceName() + 9610447Snilay@cs.wisc.edu " -> Number of sites must be > 0!"); 9710447Snilay@cs.wisc.edu ASSERT(number_bits_per_flit > 0, "[Error] " + getInstanceName() + 9810447Snilay@cs.wisc.edu " -> Number of bits per flit must be > 0!"); 9910447Snilay@cs.wisc.edu ASSERT(number_sites_per_router > 0, "[Error] " + getInstanceName() + 10010447Snilay@cs.wisc.edu " -> Number of sites per router must be > 0!"); 10110447Snilay@cs.wisc.edu 10210447Snilay@cs.wisc.edu // Get input parameters that will be forwarded to the sub instances 10310447Snilay@cs.wisc.edu const String& router_number_vns = getParameter("Router->NumberVirtualNetworks"); 10410447Snilay@cs.wisc.edu const String& router_number_vcs_per_vn = getParameter("Router->NumberVirtualChannelsPerVirtualNetwork"); 10510447Snilay@cs.wisc.edu const String& router_number_bufs_per_vc = getParameter("Router->NumberBuffersPerVirtualChannel"); 10610447Snilay@cs.wisc.edu const String& link_wire_layer = getParameter("Link->WireLayer"); 10710447Snilay@cs.wisc.edu const String& link_wire_width_multiplier = getParameter("Link->WireWidthMultiplier"); 10810447Snilay@cs.wisc.edu const String& link_wire_spacing_multiplier = getParameter("Link->WireSpacingMultiplier"); 10910447Snilay@cs.wisc.edu 11010447Snilay@cs.wisc.edu // Calculate properties from input parameters 11110447Snilay@cs.wisc.edu unsigned int number_routers = number_sites / number_sites_per_router; 11210447Snilay@cs.wisc.edu unsigned int number_router_to_router_links = 4 * number_routers; 11310447Snilay@cs.wisc.edu unsigned int number_router_to_site_links = 2 * number_sites; 11410447Snilay@cs.wisc.edu unsigned int router_number_input_ports = 4 + number_sites_per_router; 11510447Snilay@cs.wisc.edu unsigned int router_number_output_ports = 4 + number_sites_per_router; 11610447Snilay@cs.wisc.edu 11710447Snilay@cs.wisc.edu getGenProperties()->set("NumberRouters", number_routers); 11810447Snilay@cs.wisc.edu getGenProperties()->set("NumberRouterToRouterLinks", number_router_to_router_links); 11910447Snilay@cs.wisc.edu getGenProperties()->set("NumberRouterToSiteLinks", number_router_to_site_links); 12010447Snilay@cs.wisc.edu getGenProperties()->set("Router->NumberInputPorts", router_number_input_ports); 12110447Snilay@cs.wisc.edu getGenProperties()->set("Router->NumberOutputPorts", router_number_output_ports); 12210447Snilay@cs.wisc.edu 12310447Snilay@cs.wisc.edu // Create ports 12410447Snilay@cs.wisc.edu createInputPort("CK"); 12510447Snilay@cs.wisc.edu 12610447Snilay@cs.wisc.edu // Init mesh routers 12710447Snilay@cs.wisc.edu ElectricalModel* router = (ElectricalModel*)ModelGen::createModel("Router", "MeshRouter", getTechModel()); 12810447Snilay@cs.wisc.edu router->setParameter("NumberInputPorts", router_number_input_ports); 12910447Snilay@cs.wisc.edu router->setParameter("NumberOutputPorts", router_number_output_ports); 13010447Snilay@cs.wisc.edu router->setParameter("NumberVirtualNetworks", router_number_vns); 13110447Snilay@cs.wisc.edu router->setParameter("NumberVirtualChannelsPerVirtualNetwork", router_number_vcs_per_vn); 13210447Snilay@cs.wisc.edu router->setParameter("NumberBuffersPerVirtualChannel", router_number_bufs_per_vc); 13310447Snilay@cs.wisc.edu router->setParameter("NumberBitsPerFlit", number_bits_per_flit); 13410447Snilay@cs.wisc.edu router->setParameter("InputPort->BufferModel", getParameter("Router->InputPort->BufferModel")); 13510447Snilay@cs.wisc.edu router->setParameter("CrossbarModel", getParameter("Router->CrossbarModel")); 13610447Snilay@cs.wisc.edu router->setParameter("SwitchAllocator->ArbiterModel", getParameter("Router->SwitchAllocator->ArbiterModel")); 13710447Snilay@cs.wisc.edu router->setParameter("ClockTreeModel", getParameter("Router->ClockTreeModel")); 13810447Snilay@cs.wisc.edu router->setParameter("ClockTree->NumberLevels", getParameter("Router->ClockTree->NumberLevels")); 13910447Snilay@cs.wisc.edu router->setParameter("ClockTree->WireLayer", getParameter("Router->ClockTree->WireLayer")); 14010447Snilay@cs.wisc.edu router->setParameter("ClockTree->WireWidthMultiplier", getParameter("Router->ClockTree->WireWidthMultiplier")); 14110447Snilay@cs.wisc.edu router->setParameter("ClockTree->WireSpacingMultiplier", getParameter("Router->ClockTree->WireSpacingMultiplier")); 14210447Snilay@cs.wisc.edu router->construct(); 14310447Snilay@cs.wisc.edu 14410447Snilay@cs.wisc.edu // Init router to router links 14510447Snilay@cs.wisc.edu ElectricalModel* rr_link = (ElectricalModel*)ModelGen::createModel("RepeatedLink", "RouterToRouterLink", getTechModel()); 14610447Snilay@cs.wisc.edu rr_link->setParameter("NumberBits", number_bits_per_flit); 14710447Snilay@cs.wisc.edu rr_link->setParameter("WireLayer", link_wire_layer); 14810447Snilay@cs.wisc.edu rr_link->setParameter("WireWidthMultiplier", link_wire_width_multiplier); 14910447Snilay@cs.wisc.edu rr_link->setParameter("WireSpacingMultiplier", link_wire_spacing_multiplier); 15010447Snilay@cs.wisc.edu rr_link->construct(); 15110447Snilay@cs.wisc.edu 15210447Snilay@cs.wisc.edu // Init router to site links 15310447Snilay@cs.wisc.edu ElectricalModel* rs_link = (ElectricalModel*)ModelGen::createModel("RepeatedLink", "RouterToSiteLink", getTechModel()); 15410447Snilay@cs.wisc.edu rs_link->setParameter("NumberBits", number_bits_per_flit); 15510447Snilay@cs.wisc.edu rs_link->setParameter("WireLayer", link_wire_layer); 15610447Snilay@cs.wisc.edu rs_link->setParameter("WireWidthMultiplier", link_wire_width_multiplier); 15710447Snilay@cs.wisc.edu rs_link->setParameter("WireSpacingMultiplier", link_wire_spacing_multiplier); 15810447Snilay@cs.wisc.edu rs_link->construct(); 15910447Snilay@cs.wisc.edu 16010447Snilay@cs.wisc.edu // Connect ports 16110447Snilay@cs.wisc.edu createNet("RR_Link_Out", makeNetIndex(0, number_bits_per_flit-1)); 16210447Snilay@cs.wisc.edu createNet("RR_Link_In", makeNetIndex(0, number_bits_per_flit-1)); 16310447Snilay@cs.wisc.edu portConnect(rr_link, "In", "RR_Link_In"); 16410447Snilay@cs.wisc.edu portConnect(rr_link, "Out", "RR_Link_Out"); 16510447Snilay@cs.wisc.edu 16610447Snilay@cs.wisc.edu createNet("RS_Link_Out", makeNetIndex(0, number_bits_per_flit-1)); 16710447Snilay@cs.wisc.edu createNet("RS_Link_In", makeNetIndex(0, number_bits_per_flit-1)); 16810447Snilay@cs.wisc.edu portConnect(rs_link, "In", "RS_Link_In"); 16910447Snilay@cs.wisc.edu portConnect(rs_link, "Out", "RS_Link_Out"); 17010447Snilay@cs.wisc.edu 17110447Snilay@cs.wisc.edu portConnect(router, "CK", "CK"); 17210447Snilay@cs.wisc.edu for(unsigned int i = 0; i < router_number_input_ports; ++i) 17310447Snilay@cs.wisc.edu { 17410447Snilay@cs.wisc.edu createNet("Router_In" + (String)i, makeNetIndex(0, number_bits_per_flit-1)); 17510447Snilay@cs.wisc.edu portConnect(router, "FlitIn" + (String)i, "Router_In" + (String)i); 17610447Snilay@cs.wisc.edu } 17710447Snilay@cs.wisc.edu for(unsigned int i = 0; i < router_number_output_ports; ++i) 17810447Snilay@cs.wisc.edu { 17910447Snilay@cs.wisc.edu createNet("Router_Out" + (String)i, makeNetIndex(0, number_bits_per_flit-1)); 18010447Snilay@cs.wisc.edu portConnect(router, "FlitOut" + (String)i, "Router_Out" + (String)i); 18110447Snilay@cs.wisc.edu } 18210447Snilay@cs.wisc.edu for(unsigned int i = 0; i < number_bits_per_flit; ++i) 18310447Snilay@cs.wisc.edu { 18410447Snilay@cs.wisc.edu for(unsigned int j = 0; j < 4; ++j) 18510447Snilay@cs.wisc.edu { 18610447Snilay@cs.wisc.edu assignVirtualFanout("Router_In" + (String)j, makeNetIndex(i), "RR_Link_Out", makeNetIndex(i)); 18710447Snilay@cs.wisc.edu assignVirtualFanin("RR_Link_In", makeNetIndex(i), "Router_Out" + (String)j, makeNetIndex(i)); 18810447Snilay@cs.wisc.edu } 18910447Snilay@cs.wisc.edu for(unsigned int j = 4; j < router_number_input_ports; ++j) 19010447Snilay@cs.wisc.edu { 19110447Snilay@cs.wisc.edu assignVirtualFanout("Router_In" + (String)j, makeNetIndex(i), "RS_Link_Out", makeNetIndex(i)); 19210447Snilay@cs.wisc.edu assignVirtualFanin("RS_Link_In", makeNetIndex(i), "Router_Out" + (String)j, makeNetIndex(i)); 19310447Snilay@cs.wisc.edu } 19410447Snilay@cs.wisc.edu } 19510447Snilay@cs.wisc.edu 19610447Snilay@cs.wisc.edu // Create area, power and event results 19710447Snilay@cs.wisc.edu createElectricalResults(); 19810447Snilay@cs.wisc.edu createElectricalEventResult("AvgUnicast"); 19910447Snilay@cs.wisc.edu createElectricalEventResult("AvgBroadcast"); 20010447Snilay@cs.wisc.edu 20110447Snilay@cs.wisc.edu // Add all instances 20210447Snilay@cs.wisc.edu addSubInstances(router, number_routers); 20310447Snilay@cs.wisc.edu addElectricalSubResults(router, number_routers); 20410447Snilay@cs.wisc.edu addSubInstances(rr_link, number_router_to_router_links); 20510447Snilay@cs.wisc.edu addElectricalSubResults(rr_link, number_router_to_router_links); 20610447Snilay@cs.wisc.edu addSubInstances(rs_link, number_router_to_site_links); 20710447Snilay@cs.wisc.edu addElectricalSubResults(rs_link, number_router_to_site_links); 20810447Snilay@cs.wisc.edu 20910447Snilay@cs.wisc.edu double number_routers_per_side = sqrt(number_routers); 21010447Snilay@cs.wisc.edu 21110447Snilay@cs.wisc.edu // Update unicast event 21210447Snilay@cs.wisc.edu double avg_number_unicast_hop = 2.0 * number_routers_per_side / 3.0; 21310447Snilay@cs.wisc.edu double avg_number_unicast_rr_links_traveled = avg_number_unicast_hop; 21410447Snilay@cs.wisc.edu double avg_number_unicast_rs_links_traveled = 2.0; 21510447Snilay@cs.wisc.edu double avg_number_unicast_router_traveled = avg_number_unicast_hop + 1.0; 21610447Snilay@cs.wisc.edu Result* avg_unicast_flit = getEventResult("AvgUnicast"); 21710447Snilay@cs.wisc.edu avg_unicast_flit->addSubResult(rr_link->getEventResult("Send"), "RouterToRouterLink", avg_number_unicast_rr_links_traveled); 21810447Snilay@cs.wisc.edu avg_unicast_flit->addSubResult(rs_link->getEventResult("Send"), "RouterToSiteLink", avg_number_unicast_rs_links_traveled); 21910447Snilay@cs.wisc.edu if(router->hasEventResult("WriteBuffer")) 22010447Snilay@cs.wisc.edu { 22110447Snilay@cs.wisc.edu avg_unicast_flit->addSubResult(router->getEventResult("WriteBuffer"), "MeshRouter", avg_number_unicast_router_traveled); 22210447Snilay@cs.wisc.edu } 22310447Snilay@cs.wisc.edu if(router->hasEventResult("ReadBuffer")) 22410447Snilay@cs.wisc.edu { 22510447Snilay@cs.wisc.edu avg_unicast_flit->addSubResult(router->getEventResult("ReadBuffer"), "MeshRouter", avg_number_unicast_router_traveled); 22610447Snilay@cs.wisc.edu } 22710447Snilay@cs.wisc.edu avg_unicast_flit->addSubResult(router->getEventResult("TraverseCrossbar->Multicast1"), "MeshRouter", avg_number_unicast_router_traveled); 22810447Snilay@cs.wisc.edu 22910447Snilay@cs.wisc.edu // Update broadcast event 23010447Snilay@cs.wisc.edu double avg_number_broadcast_rr_links_traveled = (number_routers_per_side - 1.0) * number_routers_per_side + number_routers_per_side - 1.0; 23110447Snilay@cs.wisc.edu double avg_number_broadcast_rs_links_traveled = number_sites; 23210447Snilay@cs.wisc.edu double avg_number_broadcast_router_crossbar_traveled = number_routers * (number_sites_per_router + 1.0) - 2.0; 23310447Snilay@cs.wisc.edu Result* avg_broadcast_flit = getEventResult("AvgBroadcast"); 23410447Snilay@cs.wisc.edu avg_broadcast_flit->addSubResult(rr_link->getEventResult("Send"), "RouterToRouterLink", avg_number_broadcast_rr_links_traveled); 23510447Snilay@cs.wisc.edu avg_broadcast_flit->addSubResult(rs_link->getEventResult("Send"), "RouterToSiteLink", avg_number_broadcast_rs_links_traveled); 23610447Snilay@cs.wisc.edu if(router->hasEventResult("WriteBuffer")) 23710447Snilay@cs.wisc.edu { 23810447Snilay@cs.wisc.edu avg_broadcast_flit->addSubResult(router->getEventResult("WriteBuffer"), "MeshRouter", number_routers); 23910447Snilay@cs.wisc.edu } 24010447Snilay@cs.wisc.edu if(router->hasEventResult("ReadBuffer")) 24110447Snilay@cs.wisc.edu { 24210447Snilay@cs.wisc.edu avg_broadcast_flit->addSubResult(router->getEventResult("ReadBuffer"), "MeshRouter", number_routers); 24310447Snilay@cs.wisc.edu } 24410447Snilay@cs.wisc.edu avg_broadcast_flit->addSubResult(router->getEventResult("TraverseCrossbar->Multicast1"), "MeshRouter", avg_number_broadcast_router_crossbar_traveled); 24510447Snilay@cs.wisc.edu 24610447Snilay@cs.wisc.edu return; 24710447Snilay@cs.wisc.edu } 24810447Snilay@cs.wisc.edu 24910447Snilay@cs.wisc.edu void ElectricalMesh::updateModel() 25010447Snilay@cs.wisc.edu { 25110447Snilay@cs.wisc.edu // Get properties 25210447Snilay@cs.wisc.edu double site_pitch = getProperty("SitePitch").toDouble(); 25310447Snilay@cs.wisc.edu double clock_freq = getParameter("Frequency"); 25410447Snilay@cs.wisc.edu 25510447Snilay@cs.wisc.edu ASSERT(site_pitch > 0, "[Error] " + getInstanceName() + 25610447Snilay@cs.wisc.edu " -> Site pitch must be > 0!"); 25710447Snilay@cs.wisc.edu ASSERT(clock_freq > 0, "[Error] " + getInstanceName() + 25810447Snilay@cs.wisc.edu " -> Clock frequency must be > 0!"); 25910447Snilay@cs.wisc.edu 26010447Snilay@cs.wisc.edu unsigned int number_sites_per_router = getParameter("NumberSitesPerRouter"); 26110447Snilay@cs.wisc.edu // Get margin on link delays, since there are registers before and after the link 26210447Snilay@cs.wisc.edu double delay_ck_to_q = getTechModel()->getStdCellLib()->getStdCellCache()->get("DFFQ_X1->Delay->CK_to_Q"); 26310447Snilay@cs.wisc.edu double delay_setup = getTechModel()->getStdCellLib()->getStdCellCache()->get("DFFQ_X1->Delay->CK_to_Q"); 26410447Snilay@cs.wisc.edu double link_delay_margin = (delay_ck_to_q + delay_setup) * 1.5; 26510447Snilay@cs.wisc.edu 26610447Snilay@cs.wisc.edu double rr_link_length = site_pitch * sqrt(number_sites_per_router); 26710447Snilay@cs.wisc.edu double rr_link_delay = std::max(1e-99, 1.0 / clock_freq - link_delay_margin); 26810447Snilay@cs.wisc.edu double rs_link_length = site_pitch * (sqrt(number_sites_per_router) - 1.0); 26910447Snilay@cs.wisc.edu double rs_link_delay = std::max(1e-99, 1.0 / clock_freq - link_delay_margin ); 27010447Snilay@cs.wisc.edu double router_delay = 1.0 / clock_freq; 27110447Snilay@cs.wisc.edu 27210447Snilay@cs.wisc.edu Model* rr_link = getSubInstance("RouterToRouterLink"); 27310447Snilay@cs.wisc.edu rr_link->setProperty("WireLength", rr_link_length); 27410447Snilay@cs.wisc.edu rr_link->setProperty("Delay", rr_link_delay); 27510447Snilay@cs.wisc.edu rr_link->setProperty("IsKeepParity", "TRUE"); 27610447Snilay@cs.wisc.edu rr_link->update(); 27710447Snilay@cs.wisc.edu 27810447Snilay@cs.wisc.edu Model* rs_link = getSubInstance("RouterToSiteLink"); 27910447Snilay@cs.wisc.edu rs_link->setProperty("WireLength", rs_link_length); 28010447Snilay@cs.wisc.edu rs_link->setProperty("Delay", rs_link_delay); 28110447Snilay@cs.wisc.edu rs_link->setProperty("IsKeepParity", "TRUE"); 28210447Snilay@cs.wisc.edu rs_link->update(); 28310447Snilay@cs.wisc.edu 28410447Snilay@cs.wisc.edu ElectricalModel* router = (ElectricalModel*)getSubInstance("MeshRouter"); 28510447Snilay@cs.wisc.edu router->update(); 28610447Snilay@cs.wisc.edu 28710447Snilay@cs.wisc.edu ElectricalTimingTree router_timing_tree("MeshRouter", router); 28810447Snilay@cs.wisc.edu router_timing_tree.performTimingOpt(router->getNet("CK"), router_delay); 28910447Snilay@cs.wisc.edu return; 29010447Snilay@cs.wisc.edu } 29110447Snilay@cs.wisc.edu 29210447Snilay@cs.wisc.edu void ElectricalMesh::propagateTransitionInfo() 29310447Snilay@cs.wisc.edu { 29410447Snilay@cs.wisc.edu // Get parameters 29510447Snilay@cs.wisc.edu unsigned int router_number_input_ports = getGenProperties()->get("Router->NumberInputPorts"); 29610447Snilay@cs.wisc.edu 29710447Snilay@cs.wisc.edu ElectricalModel* rr_link = (ElectricalModel*)getSubInstance("RouterToRouterLink"); 29810447Snilay@cs.wisc.edu assignPortTransitionInfo(rr_link, "In", TransitionInfo(0.25, 0.25, 0.25)); 29910447Snilay@cs.wisc.edu rr_link->use(); 30010447Snilay@cs.wisc.edu 30110447Snilay@cs.wisc.edu ElectricalModel* rs_link = (ElectricalModel*)getSubInstance("RouterToSiteLink"); 30210447Snilay@cs.wisc.edu assignPortTransitionInfo(rs_link, "In", TransitionInfo(0.25, 0.25, 0.25)); 30310447Snilay@cs.wisc.edu rs_link->use(); 30410447Snilay@cs.wisc.edu 30510447Snilay@cs.wisc.edu ElectricalModel* router = (ElectricalModel*)getSubInstance("MeshRouter"); 30610447Snilay@cs.wisc.edu for(unsigned int i = 0; i < router_number_input_ports; ++i) 30710447Snilay@cs.wisc.edu { 30810447Snilay@cs.wisc.edu assignPortTransitionInfo(router, "FlitIn" + (String)i, TransitionInfo(0.25, 0.25, 0.25)); 30910447Snilay@cs.wisc.edu } 31010447Snilay@cs.wisc.edu assignPortTransitionInfo(router, "CK", TransitionInfo(0.0, 1.0, 0.0)); 31110447Snilay@cs.wisc.edu router->getGenProperties()->set("UseModelEvent", ""); 31210447Snilay@cs.wisc.edu router->use(); 31310447Snilay@cs.wisc.edu 31410447Snilay@cs.wisc.edu return; 31510447Snilay@cs.wisc.edu } 31610447Snilay@cs.wisc.edu} // namespace DSENT 31710447Snilay@cs.wisc.edu 318