e8ed7b1d1b
This patch adds a tool called DSENT to the ext/ directory. DSENT is a tool that models power and area for on-chip networks. The next patch adds a script for using the tool.
512 lines
31 KiB
C++
512 lines
31 KiB
C++
#include "model/network/PhotonicClos.h"
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#include <cmath>
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#include "model/ModelGen.h"
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#include "model/timing_graph/ElectricalTimingTree.h"
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#include "model/timing_graph/ElectricalNet.h"
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namespace DSENT
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{
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using std::sqrt;
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PhotonicClos::PhotonicClos(const String& instance_name_, const TechModel* tech_model_)
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: ElectricalModel(instance_name_, tech_model_)
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{
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initParameters();
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initProperties();
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}
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PhotonicClos::~PhotonicClos()
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{}
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void PhotonicClos::initParameters()
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{
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// Clock Frequency
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addParameterName("Frequency");
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// Physical Parameters
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addParameterName("NumberInputSites");
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addParameterName("NumberOutputSites");
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addParameterName("NumberBitsPerFlit");
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// Number of each type of routers
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addParameterName("NumberIngressRouters");
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addParameterName("NumberMiddleRouters");
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addParameterName("NumberEgressRouters");
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// Optical link parameters
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addParameterName("SWSR->LinkDataRate");
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addParameterName("SWSR->LaserType");
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addParameterName("SWSR->RingTuningMethod");
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// Router parameters
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addParameterName("Router->NumberVirtualNetworks");
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addParameterName("Router->NumberVirtualChannelsPerVirtualNetwork");
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addParameterName("Router->NumberBuffersPerVirtualChannel");
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addParameterName("Router->InputPort->BufferModel");
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addParameterName("Router->CrossbarModel");
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addParameterName("Router->SwitchAllocator->ArbiterModel");
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addParameterName("Router->ClockTreeModel");
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addParameterName("Router->ClockTree->NumberLevels");
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addParameterName("Router->ClockTree->WireLayer");
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addParameterName("Router->ClockTree->WireWidthMultiplier");
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addParameterName("Router->ClockTree->WireSpacingMultiplier", 3.0);
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// Link parameters
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addParameterName("Link->WireLayer");
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addParameterName("Link->WireWidthMultiplier");
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addParameterName("Link->WireSpacingMultiplier");
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return;
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}
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void PhotonicClos::initProperties()
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{
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addPropertyName("InputSitePitch");
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addPropertyName("OutputSitePitch");
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addPropertyName("SWSR->OptUtil", 1.0);
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return;
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}
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PhotonicClos* PhotonicClos::clone() const
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{
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// TODO
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return NULL;
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}
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void PhotonicClos::constructModel()
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{
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// Get input parameters
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double clock_freq = getParameter("Frequency");
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unsigned int number_input_sites = getParameter("NumberInputSites").toUInt();
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unsigned int number_output_sites = getParameter("NumberOutputSites").toUInt();
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unsigned int number_bits_per_flit = getParameter("NumberBitsPerFlit").toUInt();
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unsigned int number_ingress_routers = getParameter("NumberIngressRouters").toUInt();
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unsigned int number_middle_routers = getParameter("NumberMiddleRouters").toUInt();
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unsigned int number_egress_routers = getParameter("NumberEgressRouters").toUInt();
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ASSERT(clock_freq > 0, "[Error] " + getInstanceName() +
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" -> Clock frequency must be > 0!");
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ASSERT(number_input_sites > 0, "[Error] " + getInstanceName() +
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" -> Number of input sites must be > 0!");
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ASSERT(number_output_sites > 0, "[Error] " + getInstanceName() +
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" -> Number of output sites must be > 0!");
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ASSERT(number_bits_per_flit > 0, "[Error] " + getInstanceName() +
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" -> Number of bits per flit must be > 0!");
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ASSERT(number_ingress_routers > 0, "[Error] " + getInstanceName() +
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" -> Number of ingress routers must be > 0!");
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ASSERT(number_middle_routers > 0, "[Error] " + getInstanceName() +
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" -> Number of middle routers must be > 0!");
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ASSERT(number_egress_routers > 0, "[Error] " + getInstanceName() +
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" -> Number of egress routers must be > 0!");
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// Get input parameters that will be forwarded to the sub instances
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const String& swsr_link_data_rate = getParameter("SWSR->LinkDataRate");
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const String& swsr_laser_type = getParameter("SWSR->LaserType");
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const String& swsr_ring_tuning_method = getParameter("SWSR->RingTuningMethod");
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const String& router_number_vns = getParameter("Router->NumberVirtualNetworks");
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const String& router_number_vcs_per_vn = getParameter("Router->NumberVirtualChannelsPerVirtualNetwork");
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const String& router_number_bufs_per_vc = getParameter("Router->NumberBuffersPerVirtualChannel");
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const String& router_buffer_model = getParameter("Router->InputPort->BufferModel");
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const String& router_crossbar_model = getParameter("Router->CrossbarModel");
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const String& link_wire_layer = getParameter("Link->WireLayer");
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const String& link_wire_width_multiplier = getParameter("Link->WireWidthMultiplier");
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const String& link_wire_spacing_multiplier = getParameter("Link->WireSpacingMultiplier");
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// Calculate properties from input parameters
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unsigned int ingress_router_number_input_ports = number_input_sites / number_ingress_routers;
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unsigned int ingress_router_number_output_ports = number_middle_routers;
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unsigned int middle_router_number_input_ports = number_ingress_routers;
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unsigned int middle_router_number_output_ports = number_egress_routers;
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unsigned int egress_router_number_input_ports = number_middle_routers;
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unsigned int egress_router_number_output_ports = number_output_sites / number_egress_routers;
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unsigned int number_input_to_ingress_links = number_input_sites;
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unsigned int number_ingress_to_middle_links = number_ingress_routers * number_middle_routers;
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unsigned int number_middle_to_egress_links = number_middle_routers * number_egress_routers;
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unsigned int number_egress_to_output_links = number_output_sites;
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getGenProperties()->set("NumberInputSitesPerIngressRouter", ingress_router_number_input_ports);
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getGenProperties()->set("NumberOutputSitesPerEgressRouter", egress_router_number_output_ports);
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getGenProperties()->set("IngressRouter->NumberInputPorts", ingress_router_number_input_ports);
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getGenProperties()->set("IngressRouter->NumberOutputPorts", ingress_router_number_output_ports);
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getGenProperties()->set("MiddleRouter->NumberInputPorts", middle_router_number_input_ports);
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getGenProperties()->set("MiddleRouter->NumberOutputPorts", middle_router_number_output_ports);
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getGenProperties()->set("EgressRouter->NumberInputPorts", egress_router_number_input_ports);
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getGenProperties()->set("EgressRouter->NumberOutputPorts", egress_router_number_output_ports);
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// Create ports
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createInputPort("CK");
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// Init ingress router
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ElectricalModel* ingress_router = (ElectricalModel*)ModelGen::createModel("Router", "IngressRouter", getTechModel());
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ingress_router->setParameter("NumberInputPorts", ingress_router_number_input_ports);
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ingress_router->setParameter("NumberOutputPorts", ingress_router_number_output_ports);
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ingress_router->setParameter("NumberVirtualNetworks", router_number_vns);
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ingress_router->setParameter("NumberVirtualChannelsPerVirtualNetwork", router_number_vcs_per_vn);
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ingress_router->setParameter("NumberBuffersPerVirtualChannel", router_number_bufs_per_vc);
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ingress_router->setParameter("NumberBitsPerFlit", number_bits_per_flit);
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ingress_router->setParameter("InputPort->BufferModel", router_buffer_model);
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ingress_router->setParameter("CrossbarModel", router_crossbar_model);
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ingress_router->setParameter("SwitchAllocator->ArbiterModel", getParameter("Router->SwitchAllocator->ArbiterModel"));
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ingress_router->setParameter("ClockTreeModel", getParameter("Router->ClockTreeModel"));
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ingress_router->setParameter("ClockTree->NumberLevels", getParameter("Router->ClockTree->NumberLevels"));
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ingress_router->setParameter("ClockTree->WireLayer", getParameter("Router->ClockTree->WireLayer"));
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ingress_router->setParameter("ClockTree->WireWidthMultiplier", getParameter("Router->ClockTree->WireWidthMultiplier"));
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ingress_router->setParameter("ClockTree->WireSpacingMultiplier", getParameter("Router->ClockTree->WireSpacingMultiplier"));
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ingress_router->construct();
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// Init middle routers
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ElectricalModel* middle_router = (ElectricalModel*)ModelGen::createModel("Router", "MiddleRouter", getTechModel());
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middle_router->setParameter("NumberInputPorts", middle_router_number_input_ports);
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middle_router->setParameter("NumberOutputPorts", middle_router_number_output_ports);
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middle_router->setParameter("NumberVirtualNetworks", router_number_vns);
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middle_router->setParameter("NumberVirtualChannelsPerVirtualNetwork", router_number_vcs_per_vn);
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middle_router->setParameter("NumberBuffersPerVirtualChannel", router_number_bufs_per_vc);
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middle_router->setParameter("NumberBitsPerFlit", number_bits_per_flit);
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middle_router->setParameter("InputPort->BufferModel", router_buffer_model);
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middle_router->setParameter("CrossbarModel", router_crossbar_model);
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middle_router->setParameter("SwitchAllocator->ArbiterModel", getParameter("Router->SwitchAllocator->ArbiterModel"));
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middle_router->setParameter("ClockTreeModel", getParameter("Router->ClockTreeModel"));
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middle_router->setParameter("ClockTree->NumberLevels", getParameter("Router->ClockTree->NumberLevels"));
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middle_router->setParameter("ClockTree->WireLayer", getParameter("Router->ClockTree->WireLayer"));
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middle_router->setParameter("ClockTree->WireWidthMultiplier", getParameter("Router->ClockTree->WireWidthMultiplier"));
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middle_router->setParameter("ClockTree->WireSpacingMultiplier", getParameter("Router->ClockTree->WireSpacingMultiplier"));
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middle_router->construct();
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// Init egress routers
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ElectricalModel* egress_router = (ElectricalModel*)ModelGen::createModel("Router", "EgressRouter", getTechModel());
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egress_router->setParameter("NumberInputPorts", egress_router_number_input_ports);
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egress_router->setParameter("NumberOutputPorts", egress_router_number_output_ports);
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egress_router->setParameter("NumberVirtualNetworks", router_number_vns);
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egress_router->setParameter("NumberVirtualChannelsPerVirtualNetwork", router_number_vcs_per_vn);
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egress_router->setParameter("NumberBuffersPerVirtualChannel", router_number_bufs_per_vc);
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egress_router->setParameter("NumberBitsPerFlit", number_bits_per_flit);
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egress_router->setParameter("InputPort->BufferModel", router_buffer_model);
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egress_router->setParameter("CrossbarModel", router_crossbar_model);
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egress_router->setParameter("SwitchAllocator->ArbiterModel", getParameter("Router->SwitchAllocator->ArbiterModel"));
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egress_router->setParameter("ClockTreeModel", getParameter("Router->ClockTreeModel"));
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egress_router->setParameter("ClockTree->NumberLevels", getParameter("Router->ClockTree->NumberLevels"));
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egress_router->setParameter("ClockTree->WireLayer", getParameter("Router->ClockTree->WireLayer"));
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egress_router->setParameter("ClockTree->WireWidthMultiplier", getParameter("Router->ClockTree->WireWidthMultiplier"));
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egress_router->setParameter("ClockTree->WireSpacingMultiplier", getParameter("Router->ClockTree->WireSpacingMultiplier"));
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egress_router->construct();
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// Init input to ingress link
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ElectricalModel* input_to_ingress_link = (ElectricalModel*)ModelGen::createModel("RepeatedLink", "InputToIngressLink", getTechModel());
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input_to_ingress_link->setParameter("NumberBits", number_bits_per_flit);
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input_to_ingress_link->setParameter("WireLayer", link_wire_layer);
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input_to_ingress_link->setParameter("WireWidthMultiplier", link_wire_width_multiplier);
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input_to_ingress_link->setParameter("WireSpacingMultiplier", link_wire_spacing_multiplier);
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input_to_ingress_link->construct();
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// Init ingress to middle link
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ElectricalModel* ingress_to_middle_link = (ElectricalModel*)ModelGen::createModel("SWSRLink", "IngressToMiddleLink", getTechModel());
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ingress_to_middle_link->setParameter("NumberBits", number_bits_per_flit);
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ingress_to_middle_link->setParameter("CoreDataRate", clock_freq);
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ingress_to_middle_link->setParameter("LinkDataRate", swsr_link_data_rate);
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ingress_to_middle_link->setParameter("LaserType", swsr_laser_type);
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ingress_to_middle_link->setParameter("RingTuningMethod", swsr_ring_tuning_method);
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ingress_to_middle_link->construct();
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// Init middle to egress link
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ElectricalModel* middle_to_egress_link = (ElectricalModel*)ModelGen::createModel("SWSRLink", "MiddleToEgressLink", getTechModel());
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middle_to_egress_link->setParameter("NumberBits", number_bits_per_flit);
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middle_to_egress_link->setParameter("CoreDataRate", clock_freq);
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middle_to_egress_link->setParameter("LinkDataRate", swsr_link_data_rate);
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middle_to_egress_link->setParameter("LaserType", swsr_laser_type);
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middle_to_egress_link->setParameter("RingTuningMethod", swsr_ring_tuning_method);
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middle_to_egress_link->construct();
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// Init egress to output link
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ElectricalModel* egress_to_output_link = (ElectricalModel*)ModelGen::createModel("RepeatedLink", "EgressToOutputLink", getTechModel());
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egress_to_output_link->setParameter("NumberBits", number_bits_per_flit);
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egress_to_output_link->setParameter("WireLayer", link_wire_layer);
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egress_to_output_link->setParameter("WireWidthMultiplier", link_wire_width_multiplier);
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egress_to_output_link->setParameter("WireSpacingMultiplier", link_wire_spacing_multiplier);
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egress_to_output_link->construct();
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// Connect ports
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createNet("InputToIngressLink_Out", makeNetIndex(0, number_bits_per_flit - 1));
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createNet("InputToIngressLink_In", makeNetIndex(0, number_bits_per_flit - 1));
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portConnect(input_to_ingress_link, "In", "InputToIngressLink_In");
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portConnect(input_to_ingress_link, "Out", "InputToIngressLink_Out");
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createNet("IngressToMiddleLink_In", makeNetIndex(0, number_bits_per_flit - 1));
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createNet("IngressToMiddleLink_Out", makeNetIndex(0, number_bits_per_flit - 1));
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portConnect(ingress_to_middle_link, "In", "IngressToMiddleLink_In");
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portConnect(ingress_to_middle_link, "Out", "IngressToMiddleLink_Out");
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createNet("MiddleToEgressLink_In", makeNetIndex(0, number_bits_per_flit - 1));
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createNet("MiddleToEgressLink_Out", makeNetIndex(0, number_bits_per_flit - 1));
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portConnect(middle_to_egress_link, "In", "MiddleToEgressLink_In");
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portConnect(middle_to_egress_link, "Out", "MiddleToEgressLink_Out");
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createNet("EgressToOutputLink_In", makeNetIndex(0, number_bits_per_flit - 1));
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createNet("EgressToOutputLink_Out", makeNetIndex(0, number_bits_per_flit - 1));
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portConnect(egress_to_output_link, "In", "EgressToOutputLink_In");
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portConnect(egress_to_output_link, "Out", "EgressToOutputLink_Out");
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portConnect(ingress_router, "CK", "CK");
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for(unsigned int i = 0; i < ingress_router_number_input_ports; ++i)
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{
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createNet("IngressRouter_In" + (String)i, makeNetIndex(0, number_bits_per_flit-1));
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for (unsigned int j = 0; j < number_bits_per_flit; ++j)
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assignVirtualFanout("IngressRouter_In" + (String)i, makeNetIndex(j), "InputToIngressLink_Out", makeNetIndex(j));
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portConnect(ingress_router, "FlitIn" + (String)i, "IngressRouter_In" + (String)i);
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}
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for(unsigned int i = 0; i < ingress_router_number_output_ports; ++i)
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{
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// VFI
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portConnect(ingress_router, "FlitOut" + (String)i, "IngressToMiddleLink_In");
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}
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portConnect(middle_router, "CK", "CK");
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for(unsigned int i = 0; i < middle_router_number_input_ports; ++i)
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{
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createNet("MiddleRouter_In" + (String)i, makeNetIndex(0, number_bits_per_flit-1));
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for (unsigned int j = 0; j < number_bits_per_flit; ++j)
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assignVirtualFanout("MiddleRouter_In" + (String)i, makeNetIndex(j), "IngressToMiddleLink_Out", makeNetIndex(j));
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portConnect(middle_router, "FlitIn" + (String)i, "MiddleRouter_In" + (String)i);
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}
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for(unsigned int i = 0; i < middle_router_number_output_ports; ++i)
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{
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// VFI
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portConnect(middle_router, "FlitOut" + (String)i, "MiddleToEgressLink_In");
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}
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portConnect(egress_router, "CK", "CK");
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for(unsigned int i = 0; i < egress_router_number_input_ports; ++i)
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{
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createNet("EgressRouter_In" + (String)i, makeNetIndex(0, number_bits_per_flit-1));
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for (unsigned int j = 0; j < number_bits_per_flit; ++j)
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assignVirtualFanout("EgressRouter_In" + (String)i, makeNetIndex(j), "MiddleToEgressLink_Out", makeNetIndex(j));
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portConnect(egress_router, "FlitIn" + (String)i, "EgressRouter_In" + (String)i);
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}
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for(unsigned int i = 0; i < egress_router_number_output_ports; ++i)
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{
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// VFI
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portConnect(egress_router, "FlitOut" + (String)i, "EgressToOutputLink_In");
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}
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// Create area, power, and event results
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createElectricalResults();
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createElectricalEventResult("AvgUnicast");
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createElectricalEventResult("AvgBroadcast");
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addNddPowerResult(new Result("Laser"));
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addNddPowerResult(new Result("RingTuning"));
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addAreaResult(new Result("Photonic"));
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// Add all instances
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addSubInstances(ingress_router, number_ingress_routers);
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addElectricalSubResults(ingress_router, number_ingress_routers);
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addSubInstances(middle_router, number_middle_routers);
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addElectricalSubResults(middle_router, number_middle_routers);
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addSubInstances(egress_router, number_egress_routers);
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addElectricalSubResults(egress_router, number_egress_routers);
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addSubInstances(input_to_ingress_link, number_input_to_ingress_links);
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addElectricalSubResults(input_to_ingress_link, number_input_to_ingress_links);
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addSubInstances(ingress_to_middle_link, number_ingress_to_middle_links);
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addElectricalSubResults(ingress_to_middle_link, number_ingress_to_middle_links);
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getAreaResult("Photonic")->addSubResult(ingress_to_middle_link->getAreaResult("Photonic"), "IngressToMiddleLink", number_ingress_to_middle_links);
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getNddPowerResult("Laser")->addSubResult(ingress_to_middle_link->getNddPowerResult("Laser"), "IngressToMiddleLink", number_ingress_to_middle_links);
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getNddPowerResult("RingTuning")->addSubResult(ingress_to_middle_link->getNddPowerResult("RingTuning"), "IngressToMiddleLink", number_ingress_to_middle_links);
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addSubInstances(middle_to_egress_link, number_middle_to_egress_links);
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addElectricalSubResults(middle_to_egress_link, number_middle_to_egress_links);
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getAreaResult("Photonic")->addSubResult(middle_to_egress_link->getAreaResult("Photonic"), "MiddletoEgressLink", number_middle_to_egress_links);
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getNddPowerResult("Laser")->addSubResult(middle_to_egress_link->getNddPowerResult("Laser"), "MiddleToEgressLink", number_middle_to_egress_links);
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getNddPowerResult("RingTuning")->addSubResult(middle_to_egress_link->getNddPowerResult("RingTuning"), "MiddleToEgressLink", number_middle_to_egress_links);
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addSubInstances(egress_to_output_link, number_egress_to_output_links);
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addElectricalSubResults(egress_to_output_link, number_egress_to_output_links);
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// Update unicast event
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Result* avg_unicast_event = getEventResult("AvgUnicast");
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avg_unicast_event->addSubResult(input_to_ingress_link->getEventResult("Send"), "InputToIngressLink", 1.0);
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if(ingress_router->hasEventResult("WriteBuffer"))
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{
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avg_unicast_event->addSubResult(ingress_router->getEventResult("WriteBuffer"), "IngressRouter", 1.0);
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}
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if(ingress_router->hasEventResult("ReadBuffer"))
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{
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avg_unicast_event->addSubResult(ingress_router->getEventResult("ReadBuffer"), "IngressRouter", 1.0);
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}
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avg_unicast_event->addSubResult(ingress_router->getEventResult("TraverseCrossbar->Multicast1"), "IngressRouter", 1.0);
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avg_unicast_event->addSubResult(ingress_to_middle_link->getEventResult("Send"), "IngressToMiddleLink", 1.0);
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if(middle_router->hasEventResult("WriteBuffer"))
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{
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avg_unicast_event->addSubResult(middle_router->getEventResult("WriteBuffer"), "MiddleRouter", 1.0);
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}
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if(middle_router->hasEventResult("ReadBuffer"))
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{
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avg_unicast_event->addSubResult(middle_router->getEventResult("ReadBuffer"), "MiddleRouter", 1.0);
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}
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avg_unicast_event->addSubResult(middle_router->getEventResult("TraverseCrossbar->Multicast1"), "MiddleRouter", 1.0);
|
|
avg_unicast_event->addSubResult(middle_to_egress_link->getEventResult("Send"), "MiddleToEgressLink", 1.0);
|
|
if(egress_router->hasEventResult("WriteBuffer"))
|
|
{
|
|
avg_unicast_event->addSubResult(egress_router->getEventResult("WriteBuffer"), "EgressRouter", 1.0);
|
|
}
|
|
if(egress_router->hasEventResult("ReadBuffer"))
|
|
{
|
|
avg_unicast_event->addSubResult(egress_router->getEventResult("ReadBuffer"), "EgressRouter", 1.0);
|
|
}
|
|
avg_unicast_event->addSubResult(egress_router->getEventResult("TraverseCrossbar->Multicast1"), "EgressRouter", 1.0);
|
|
avg_unicast_event->addSubResult(egress_to_output_link->getEventResult("Send"), "EgressToOutputLink", 1.0);
|
|
|
|
// Update broadcast event
|
|
Result* avg_broadcast_event = getEventResult("AvgBroadcast");
|
|
avg_broadcast_event->addSubResult(input_to_ingress_link->getEventResult("Send"), "InputToIngressLink", 1.0);
|
|
if(ingress_router->hasEventResult("WriteBuffer"))
|
|
{
|
|
avg_broadcast_event->addSubResult(ingress_router->getEventResult("WriteBuffer"), "IngressRouter", 1.0);
|
|
}
|
|
if(ingress_router->hasEventResult("ReadBuffer"))
|
|
{
|
|
avg_broadcast_event->addSubResult(ingress_router->getEventResult("ReadBuffer"), "IngressRouter", 1.0);
|
|
}
|
|
avg_broadcast_event->addSubResult(ingress_router->getEventResult("TraverseCrossbar->Multicast1"), "IngressRouter", 1.0);
|
|
avg_broadcast_event->addSubResult(ingress_to_middle_link->getEventResult("Send"), "IngressToMiddleLink", 1.0);
|
|
if(middle_router->hasEventResult("WriteBuffer"))
|
|
{
|
|
avg_broadcast_event->addSubResult(middle_router->getEventResult("WriteBuffer"), "MiddleRouter", 1.0);
|
|
}
|
|
if(middle_router->hasEventResult("ReadBuffer"))
|
|
{
|
|
avg_broadcast_event->addSubResult(middle_router->getEventResult("ReadBuffer"), "MiddleRouter", 1.0);
|
|
}
|
|
avg_broadcast_event->addSubResult(middle_router->getEventResult("TraverseCrossbar->Multicast1"), "MiddleRouter", 1.0);
|
|
avg_broadcast_event->addSubResult(middle_to_egress_link->getEventResult("Send"), "MiddleToEgressLink", number_egress_routers);
|
|
if(egress_router->hasEventResult("WriteBuffer"))
|
|
{
|
|
avg_broadcast_event->addSubResult(egress_router->getEventResult("WriteBuffer"), "EgressRouter", number_egress_routers);
|
|
}
|
|
if(egress_router->hasEventResult("ReadBuffer"))
|
|
{
|
|
avg_broadcast_event->addSubResult(egress_router->getEventResult("ReadBuffer"), "EgressRouter", number_egress_routers);
|
|
}
|
|
avg_broadcast_event->addSubResult(egress_router->getEventResult("TraverseCrossbar->Multicast" + (String)number_egress_routers), "EgressRouter", 1.0);
|
|
avg_broadcast_event->addSubResult(egress_to_output_link->getEventResult("Send"), "EgressToOutputLink", number_output_sites);
|
|
return;
|
|
}
|
|
|
|
void PhotonicClos::updateModel()
|
|
{
|
|
// Assumes waveguide runs adjacent to ingress and egress routers
|
|
// Assumes input sites belonging to each ingress router are centered around the ingress router
|
|
// Assumes middle routers are distributed around the chip adjacent to the main waveguide
|
|
// Assumes output sites belonging to each egress router are centered around the egress router
|
|
|
|
// Get properties
|
|
double input_site_pitch = getProperty("InputSitePitch").toDouble();
|
|
double output_site_pitch = getProperty("OutputSitePitch").toDouble();
|
|
double clock_freq = getParameter("Frequency");
|
|
const double swsr_opt_util = getProperty("SWSR->OptUtil");
|
|
|
|
ASSERT(input_site_pitch > 0, "[Error] " + getInstanceName() +
|
|
" -> Input site pitch must be > 0!");
|
|
ASSERT(output_site_pitch > 0, "[Error] " + getInstanceName() +
|
|
" -> Output site pitch must be > 0!");
|
|
|
|
unsigned int number_input_sites_per_ingress_router = getGenProperties()->get("NumberInputSitesPerIngressRouter");
|
|
unsigned int number_ingress_routers = getParameter("NumberIngressRouters");
|
|
unsigned int number_output_sites_per_egress_router = getGenProperties()->get("NumberOutputSitesPerEgressRouter");
|
|
unsigned int number_egress_routers = getParameter("NumberEgressRouters");
|
|
double delay = 1.0 / clock_freq;
|
|
|
|
//Calculate the length of the waveguide
|
|
double input_to_ingress_link_length = input_site_pitch * (sqrt(number_input_sites_per_ingress_router) - 1.0);
|
|
double input_to_ingress_link_delay = delay * 0.8;
|
|
double ingress_to_middle_link_length = input_site_pitch * (sqrt(number_input_sites_per_ingress_router) * number_ingress_routers);
|
|
double middle_to_egress_link_length = output_site_pitch * (sqrt(number_output_sites_per_egress_router) * number_egress_routers);
|
|
double egress_to_output_link_length = output_site_pitch * (sqrt(number_output_sites_per_egress_router) - 1.0);
|
|
double egress_to_output_link_delay = delay * 0.8;
|
|
double ingress_router_delay = delay;
|
|
double middle_router_delay = delay;
|
|
double egress_router_delay = delay;
|
|
|
|
Model* input_to_ingress_link = getSubInstance("InputToIngressLink");
|
|
input_to_ingress_link->setProperty("WireLength", input_to_ingress_link_length);
|
|
input_to_ingress_link->setProperty("Delay", input_to_ingress_link_delay);
|
|
input_to_ingress_link->setProperty("IsKeepParity", "TRUE");
|
|
input_to_ingress_link->update();
|
|
|
|
Model* ingress_to_middle_link = getSubInstance("IngressToMiddleLink");
|
|
ingress_to_middle_link->setProperty("Length", ingress_to_middle_link_length);
|
|
ingress_to_middle_link->setProperty("OptUtil", swsr_opt_util);
|
|
ingress_to_middle_link->update();
|
|
|
|
Model* middle_to_egress_link = getSubInstance("MiddleToEgressLink");
|
|
middle_to_egress_link->setProperty("Length", middle_to_egress_link_length);
|
|
middle_to_egress_link->setProperty("OptUtil", swsr_opt_util);
|
|
middle_to_egress_link->update();
|
|
|
|
Model* egress_to_output_link = getSubInstance("EgressToOutputLink");
|
|
egress_to_output_link->setProperty("WireLength", egress_to_output_link_length);
|
|
egress_to_output_link->setProperty("Delay", egress_to_output_link_delay);
|
|
egress_to_output_link->setProperty("IsKeepParity", "TRUE");
|
|
egress_to_output_link->update();
|
|
|
|
ElectricalModel* ingress_router = (ElectricalModel*)getSubInstance("IngressRouter");
|
|
ingress_router->update();
|
|
ElectricalTimingTree ingress_router_timing_tree("IngressRouter", ingress_router);
|
|
ingress_router_timing_tree.performTimingOpt(ingress_router->getNet("CK"), ingress_router_delay);
|
|
|
|
ElectricalModel* middle_router = (ElectricalModel*)getSubInstance("MiddleRouter");
|
|
middle_router->update();
|
|
ElectricalTimingTree middle_router_timing_tree("MiddleRouter", middle_router);
|
|
middle_router_timing_tree.performTimingOpt(middle_router->getNet("CK"), middle_router_delay);
|
|
|
|
ElectricalModel* egress_router = (ElectricalModel*)getSubInstance("EgressRouter");
|
|
egress_router->update();
|
|
ElectricalTimingTree egress_router_timing_tree("EgressRouter", egress_router);
|
|
egress_router_timing_tree.performTimingOpt(egress_router->getNet("CK"), egress_router_delay);
|
|
|
|
return;
|
|
}
|
|
|
|
void PhotonicClos::propagateTransitionInfo()
|
|
{
|
|
// Get parameters
|
|
double clock_freq = getParameter("Frequency");
|
|
double swsr_link_data_rate = getParameter("SWSR->LinkDataRate");
|
|
|
|
// Get properties
|
|
unsigned int ingress_router_number_input_ports = getGenProperties()->get("IngressRouter->NumberInputPorts");
|
|
unsigned int middle_router_number_input_ports = getGenProperties()->get("MiddleRouter->NumberInputPorts");
|
|
unsigned int egress_router_number_input_ports = getGenProperties()->get("EgressRouter->NumberInputPorts");
|
|
|
|
ElectricalModel* input_to_ingress_link = (ElectricalModel*)getSubInstance("InputToIngressLink");
|
|
assignPortTransitionInfo(input_to_ingress_link, "In", TransitionInfo(0.25, 0.25, 0.25));
|
|
input_to_ingress_link->use();
|
|
|
|
ElectricalModel* ingress_to_middle_link = (ElectricalModel*)getSubInstance("IngressToMiddleLink");
|
|
assignPortTransitionInfo(ingress_to_middle_link, "LinkCK", TransitionInfo(0.0, (double) clock_freq / (swsr_link_data_rate * 2.0), 0.0));
|
|
assignPortTransitionInfo(ingress_to_middle_link, "In", TransitionInfo(0.25, 0.25, 0.25));
|
|
ingress_to_middle_link->use();
|
|
|
|
ElectricalModel* middle_to_egress_link = (ElectricalModel*)getSubInstance("MiddleToEgressLink");
|
|
assignPortTransitionInfo(middle_to_egress_link, "LinkCK", TransitionInfo(0.0, (double) clock_freq / (swsr_link_data_rate * 2.0), 0.0));
|
|
assignPortTransitionInfo(middle_to_egress_link, "In", TransitionInfo(0.25, 0.25, 0.25));
|
|
middle_to_egress_link->use();
|
|
|
|
ElectricalModel* egress_to_output_link = (ElectricalModel*)getSubInstance("EgressToOutputLink");
|
|
assignPortTransitionInfo(egress_to_output_link, "In", TransitionInfo(0.25, 0.25, 0.25));
|
|
egress_to_output_link->use();
|
|
|
|
ElectricalModel* ingress_router = (ElectricalModel*)getSubInstance("IngressRouter");
|
|
for(unsigned int i = 0; i < ingress_router_number_input_ports; ++i)
|
|
{
|
|
assignPortTransitionInfo(ingress_router, "FlitIn" + (String)i, TransitionInfo(0.25, 0.25, 0.25));
|
|
}
|
|
assignPortTransitionInfo(ingress_router, "CK", TransitionInfo(0.0, 1.0, 0.0));
|
|
ingress_router->getGenProperties()->set("UseModelEvent", "");
|
|
ingress_router->use();
|
|
|
|
ElectricalModel* middle_router = (ElectricalModel*)getSubInstance("MiddleRouter");
|
|
for(unsigned int i = 0; i < middle_router_number_input_ports; ++i)
|
|
{
|
|
assignPortTransitionInfo(middle_router, "FlitIn" + (String)i, TransitionInfo(0.25, 0.25, 0.25));
|
|
}
|
|
assignPortTransitionInfo(middle_router, "CK", TransitionInfo(0.0, 1.0, 0.0));
|
|
middle_router->getGenProperties()->set("UseModelEvent", "");
|
|
middle_router->use();
|
|
|
|
ElectricalModel* egress_router = (ElectricalModel*)getSubInstance("EgressRouter");
|
|
for(unsigned int i = 0; i < egress_router_number_input_ports; ++i)
|
|
{
|
|
assignPortTransitionInfo(egress_router, "FlitIn" + (String)i, TransitionInfo(0.25, 0.25, 0.25));
|
|
}
|
|
assignPortTransitionInfo(egress_router, "CK", TransitionInfo(0.0, 1.0, 0.0));
|
|
egress_router->getGenProperties()->set("UseModelEvent", "");
|
|
egress_router->use();
|
|
|
|
return;
|
|
}
|
|
} // namespace DSENT
|
|
|