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Diffstat (limited to 'ext/dsent/model/optical/SWSRLink.cc')
| -rw-r--r-- | ext/dsent/model/optical/SWSRLink.cc | 328 |
1 files changed, 328 insertions, 0 deletions
diff --git a/ext/dsent/model/optical/SWSRLink.cc b/ext/dsent/model/optical/SWSRLink.cc new file mode 100644 index 000000000..88973e392 --- /dev/null +++ b/ext/dsent/model/optical/SWSRLink.cc @@ -0,0 +1,328 @@ +#include "model/optical/SWSRLink.h" + +#include "model/ModelGen.h" +#include "model/PortInfo.h" +#include "model/TransitionInfo.h" +#include "model/EventInfo.h" +#include "model/optical_graph/OpticalGraph.h" +#include "model/optical_graph/OpticalWaveguide.h" +#include "model/optical/RingModulator.h" +#include "model/optical/RingFilter.h" +#include "model/optical/RingDetector.h" +#include "model/optical/LaserSource.h" +#include "model/optical/ThrottledLaserSource.h" + +namespace DSENT +{ + SWSRLink::SWSRLink(const String& instance_name_, const TechModel* tech_model_) + : OpticalModel(instance_name_, tech_model_) + { + initParameters(); + initProperties(); + } + + SWSRLink::~SWSRLink() + {} + + void SWSRLink::initParameters() + { + addParameterName("NumberBits"); + addParameterName("CoreDataRate"); + addParameterName("LinkDataRate"); + + addParameterName("LaserType"); + addParameterName("RingTuningMethod"); + addParameterName("OptimizeLoss", "TRUE"); + + return; + } + + void SWSRLink::initProperties() + { + addPropertyName("Length"); + addPropertyName("OptUtil", 0.5); // default to 50% utilization (a new word 50% of the time) + addPropertyName("ExtinctionRatio", 6); // default properties + addPropertyName("InsertionLoss", 2); // default properties + return; + } + + void SWSRLink::constructModel() + { + // Get parameters + unsigned int number_bits = getParameter("NumberBits"); + double core_data_rate = getParameter("CoreDataRate"); + double link_data_rate = getParameter("LinkDataRate"); + + // Get directly propagated parameters + const String& ring_tuning_method = getParameter("RingTuningMethod"); + + // Calculate number of wavelengths needed + unsigned int number_wavelengths = (unsigned int)((double) number_bits * core_data_rate / link_data_rate); + + // Set some generated properties + getGenProperties()->set("NumberWavelengths", number_wavelengths); + + // Create electrical ports + createInputPort("LinkCK"); + createInputPort("In", makeNetIndex(0, number_bits-1)); + createOutputPort("Out", makeNetIndex(0, number_bits-1)); + + // Create Waveguides + // Temporarily assume its all on one waveguide + createWaveguide("LaserToMod", makeWavelengthGroup(0, number_wavelengths-1)); + createWaveguide("ModToDetector", makeWavelengthGroup(0, number_wavelengths-1)); + + // Add area results + addAreaResult(new Result("Photonic")); + createElectricalResults(); + // Setup idle event + getEventInfo("Idle")->setStaticTransitionInfos(); + // Create a waveguide area result + addAreaResult(new AtomicResult("Waveguide")); + getAreaResult("Photonic")->addSubResult(getAreaResult("Waveguide"), "Waveguide", 1.0); + // Add results + addNddPowerResult(new Result("Laser")); + addNddPowerResult(new Result("RingTuning")); + // Add event result + createElectricalEventResult("Send"); + + // Create Tx, Rx backends + // Create Tx electrical backend + ElectricalModel* tx_backend = (ElectricalModel*) ModelGen::createModel("OpticalLinkBackendTx", "OpticalLinkBackendTx", getTechModel()); + tx_backend->setParameter("InBits", number_bits); + tx_backend->setParameter("CoreDataRate", core_data_rate); + tx_backend->setParameter("LinkDataRate", link_data_rate); + tx_backend->setParameter("RingTuningMethod", ring_tuning_method); + tx_backend->setParameter("BitDuplicate", "TRUE"); + tx_backend->construct(); + + // Create Rx electrical backend + ElectricalModel* rx_backend = (ElectricalModel*) ModelGen::createModel("OpticalLinkBackendRx", "OpticalLinkBackendRx", getTechModel()); + rx_backend->setParameter("OutBits", number_bits); + rx_backend->setParameter("CoreDataRate", core_data_rate); + rx_backend->setParameter("LinkDataRate", link_data_rate); + rx_backend->setParameter("RingTuningMethod", ring_tuning_method); + rx_backend->setParameter("BitDuplicate", "TRUE"); + rx_backend->construct(); + + // Connect ports + createNet("TxBackendToTx", makeNetIndex(0, number_wavelengths-1)); + createNet("RxToRxBackend", makeNetIndex(0, number_wavelengths-1)); + portConnect(tx_backend, "In", "In"); + portConnect(tx_backend, "Out", "TxBackendToTx"); + portConnect(tx_backend, "LinkCK", "LinkCK"); + portConnect(rx_backend, "In", "RxToRxBackend"); + portConnect(rx_backend, "Out", "Out"); + portConnect(rx_backend, "LinkCK", "LinkCK"); + + // Add instances + addSubInstances(tx_backend, 1.0); + addSubInstances(rx_backend, 1.0); + + // Add electrical results + addElectricalSubResults(tx_backend, 1.0); + addElectricalSubResults(rx_backend, 1.0); + + // Add tuning power result + getNddPowerResult("RingTuning")->addSubResult(tx_backend->getNddPowerResult("RingTuning"), "OpticalLinkBackendTx", 1.0); + getNddPowerResult("RingTuning")->addSubResult(rx_backend->getNddPowerResult("RingTuning"), "OpticalLinkBackendRx", 1.0); + + // Add event results + getEventInfo("Send")->setTransitionInfo("LinkCK", TransitionInfo(0.0, (double) link_data_rate / (core_data_rate * 2.0), 0.0)); + + getEventResult("Send")->addSubResult(tx_backend->getEventResult("ProcessBits"), "OpticalLinkBackendTx", 1.0); + getEventResult("Send")->addSubResult(rx_backend->getEventResult("ProcessBits"), "OpticalLinkBackendRx", 1.0); + + buildLaser(); + buildModulator(); + buildDetector(); + + return; + } + + void SWSRLink::updateModel() + { + // Get parameters + double link_data_rate = getParameter("LinkDataRate"); + + // Get properties + double length = getProperty("Length"); + const String& extinction_ratio = getProperty("ExtinctionRatio"); + const String& insertion_loss = getProperty("InsertionLoss"); + const double opt_util = getProperty("OptUtil"); + + // Calculate loss for waveguide + double waveguide_loss = getTechModel()->get("Waveguide->LossPerMeter").toDouble() * length; + // Set loss of the waveguide + getWaveguide("ModToDetector")->setLoss(waveguide_loss); + // Calculate waveguide area + double waveguide_area = length * getTechModel()->get("Waveguide->Pitch").toDouble(); + getAreaResult("Waveguide")->setValue(waveguide_area); + + // Update the laser + Model* laser = getSubInstance("Laser"); + laser->setProperty("LaserEventTime", 1.0 / link_data_rate); + laser->setProperty("OptUtil", opt_util); + laser->update(); + + // Update the modulator + Model* modulator = getSubInstance("Modulator"); + modulator->setProperty("ExtinctionRatio", extinction_ratio); + modulator->setProperty("InsertionLoss", insertion_loss); + modulator->update(); + + Model* detector = getSubInstance("Detector"); + detector->update(); + + Model* tx_backend = getSubInstance("OpticalLinkBackendTx"); + tx_backend->update(); + + Model* rx_backend = getSubInstance("OpticalLinkBackendRx"); + rx_backend->update(); + + return; + } + + void SWSRLink::propagateTransitionInfo() + { + // Get parameters + const String& laser_type = getParameter("LaserType"); + + // Propagate transition info to tx backend + OpticalModel* tx_backend = (OpticalModel*) getSubInstance("OpticalLinkBackendTx"); + propagatePortTransitionInfo(tx_backend, "In", "In"); + propagatePortTransitionInfo(tx_backend, "LinkCK", "LinkCK"); + tx_backend->use(); + + // Set transition info for the modulator + OpticalModel* modulator = (OpticalModel*) getSubInstance("Modulator"); + propagatePortTransitionInfo(modulator, "In", tx_backend, "Out"); + modulator->use(); + + // Modulator out transition info + const TransitionInfo& mod_out_transitions = modulator->getOpticalOutputPort("Out")->getTransitionInfo(); + + // Set transition info for the receiver + OpticalModel* detector = (OpticalModel*) getSubInstance("Detector"); + detector->getOpticalInputPort("In")->setTransitionInfo(mod_out_transitions); + detector->use(); + + // Propagate transition info to tx backend + OpticalModel* rx_backend = (OpticalModel*) getSubInstance("OpticalLinkBackendRx"); + propagatePortTransitionInfo(rx_backend, "In", detector, "Out"); + propagatePortTransitionInfo(rx_backend, "LinkCK", "LinkCK"); + rx_backend->use(); + + // Propagate output transition info to output + propagatePortTransitionInfo("Out", rx_backend, "Out"); + + // Set enable signals for the laser, if applicable + if (laser_type == "Throttled") + { + // Figure out how many cycles the laser needs to be on + double cycles = getInputPort("In")->getTransitionInfo().getFrequencyMultiplier(); + + OpticalModel* laser = (OpticalModel*) getSubInstance("Laser"); + laser->getInputPort("LaserEnable")->setTransitionInfo(TransitionInfo(0.0, 1.0, cycles - 1.0)); + laser->use(); + } + + + return; + } + + void SWSRLink::buildLaser() + { + // Get parameters + unsigned int number_wavelengths = getGenProperties()->get("NumberWavelengths"); + const String& laser_type = getParameter("LaserType"); + + // Create laser + OpticalModel* laser = NULL; + if (laser_type == "Throttled") laser = new ThrottledLaserSource("Laser", getTechModel()); + else if (laser_type == "Standard") laser = new LaserSource("Laser", getTechModel()); + else ASSERT(false, "[Error] " + getInstanceName() + " -> Unknown laser type '" + laser_type + "'!"); + + laser->setParameter("OutStart", 0); + laser->setParameter("OutEnd", number_wavelengths-1); + laser->setParameter("MaxDetectors", 1); + laser->setParameter("MinDetectors", 1); + laser->construct(); + + addSubInstances(laser, 1.0); + getAreaResult("Photonic")->addSubResult(laser->getAreaResult("Photonic"), "Laser", 1.0); + // Connect laser output port + opticalPortConnect(laser, "Out", "LaserToMod"); + + // Without laser gating, laser is pure NDD power + if (laser_type == "Standard") getNddPowerResult("Laser")->addSubResult(laser->getNddPowerResult("Laser"), "Laser", 1.0); + // With laser power gating, laser is an event + else getEventResult("Send")->addSubResult(laser->getEventResult("Laser1"), "Laser", 1.0); + + return; + } + + void SWSRLink::buildModulator() + { + // Get parameters + double link_data_rate = getParameter("LinkDataRate"); + const String& optimize_loss = getParameter("OptimizeLoss"); + unsigned int number_wavelengths = getGenProperties()->get("NumberWavelengths"); + + // Create modulator + RingModulator* modulator = new RingModulator("Modulator", getTechModel()); + modulator->setParameter("DataRate", link_data_rate); + modulator->setParameter("InStart", 0); + modulator->setParameter("InEnd", number_wavelengths-1); + modulator->setParameter("ModStart", 0); + modulator->setParameter("ModEnd", number_wavelengths-1); + modulator->setParameter("OptimizeLoss", optimize_loss); + modulator->construct(); + addSubInstances(modulator, 1.0); + getAreaResult("Photonic")->addSubResult(modulator->getAreaResult("Photonic"), "Modulator", 1.0); + addElectricalSubResults(modulator, 1.0); + + // Connect electrical port + portConnect(modulator, "In", "TxBackendToTx"); + // Connect modulator input, output port + opticalPortConnect(modulator, "In", "LaserToMod"); + opticalPortConnect(modulator, "Out", "ModToDetector"); + + // Add modulator energy event for send events + getEventResult("Send")->addSubResult(modulator->getEventResult("Modulate"), "Modulator", 1.0); + return; + } + + void SWSRLink::buildDetector() + { + // Get parameters + double link_data_rate = getParameter("LinkDataRate"); + unsigned int number_wavelengths = getGenProperties()->get("NumberWavelengths"); + + // Create resonant ring detector + RingDetector* detector = new RingDetector("Detector", getTechModel()); + detector->setParameter("DataRate", link_data_rate); + detector->setParameter("InStart", 0); + detector->setParameter("InEnd", number_wavelengths-1); + detector->setParameter("DetStart", 0); + detector->setParameter("DetEnd", number_wavelengths-1); + detector->setParameter("DropAll", "TRUE"); + detector->setParameter("Topology", RingDetector::INTEGRATINGSENSEAMP); + detector->construct(); + addSubInstances(detector, 1.0); + getAreaResult("Photonic")->addSubResult(detector->getAreaResult("Photonic"), "Detector", 1.0); + addElectricalSubResults(detector, 1.0); + + // connect to electrical port + portConnect(detector, "Out", "RxToRxBackend"); + // connect optical input, output port + opticalPortConnect(detector, "In", "ModToDetector"); + + // Add receiver energy + getEventResult("Send")->addSubResult(detector->getEventResult("Receive"), "Detector", 1.0); + + return; + } + +} // namespace DSENT + |