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.
106 lines
3.8 KiB
C++
106 lines
3.8 KiB
C++
#include "model/optical/LaserSource.h"
|
|
|
|
#include "model/optical_graph/OpticalWaveguide.h"
|
|
#include "model/optical_graph/OpticalWavelength.h"
|
|
#include "model/optical_graph/OpticalLaser.h"
|
|
#include "model/optical_graph/OpticalGraph.h"
|
|
|
|
namespace DSENT
|
|
{
|
|
LaserSource::LaserSource(const String& instance_name_, const TechModel* tech_model_)
|
|
: OpticalModel(instance_name_, tech_model_)
|
|
{
|
|
initParameters();
|
|
initProperties();
|
|
}
|
|
|
|
LaserSource::~LaserSource()
|
|
{}
|
|
|
|
void LaserSource::initParameters()
|
|
{
|
|
addParameterName("OutStart");
|
|
addParameterName("OutEnd");
|
|
addParameterName("MaxDetectors");
|
|
return;
|
|
}
|
|
|
|
void LaserSource::initProperties()
|
|
{
|
|
addPropertyName("OptUtil", 1.0);
|
|
return;
|
|
}
|
|
|
|
void LaserSource::constructModel()
|
|
{
|
|
// Create Area result
|
|
Result* area_result = new AtomicResult("Photonic");
|
|
addAreaResult(area_result);
|
|
// Create NDD power result
|
|
Result* power_result = new AtomicResult("Laser");
|
|
addNddPowerResult(power_result);
|
|
|
|
// Get parameters
|
|
WavelengthGroup laser_wavelengths = makeWavelengthGroup(getParameter("OutStart"), getParameter("OutEnd"));
|
|
|
|
// Create optical ports
|
|
createOpticalOutputPort( "Out", laser_wavelengths);
|
|
// Create the filter
|
|
createLaser( "Laser", laser_wavelengths);
|
|
OpticalLaser* laser = getLaser("Laser");
|
|
// Connect the laser to the output
|
|
laser->addDownstreamNode(getWaveguide("Out"));
|
|
}
|
|
|
|
void LaserSource::updateModel()
|
|
{
|
|
// Get properties
|
|
double laser_efficiency = getTechModel()->get("Laser->CW->Efficiency").toDouble();
|
|
double laser_area = getTechModel()->get("Laser->CW->Area").toDouble();
|
|
double laser_diode_loss = getTechModel()->get("Laser->CW->LaserDiodeLoss");
|
|
|
|
// Get parameters
|
|
WavelengthGroup laser_wavelengths = makeWavelengthGroup(getParameter("OutStart"), getParameter("OutEnd"));
|
|
unsigned int number_wavelengths = laser_wavelengths.second - laser_wavelengths.first + 1;
|
|
// Update losses
|
|
OpticalLaser* laser = getLaser("Laser");
|
|
laser->setLoss(laser_diode_loss);
|
|
laser->setEfficiency(laser_efficiency);
|
|
// Update area
|
|
getAreaResult("Photonic")->setValue(laser_area * number_wavelengths);
|
|
}
|
|
|
|
void LaserSource::evaluateModel()
|
|
{
|
|
// Get parameters
|
|
unsigned int max_detectors = getParameter("MaxDetectors").toUInt();
|
|
WavelengthGroup laser_wavelengths = makeWavelengthGroup(getParameter("OutStart"), getParameter("OutEnd"));
|
|
|
|
// Get properties
|
|
double opt_util = getProperty("OptUtil");
|
|
|
|
// Create optical graph object
|
|
OpticalGraph* optical_graph = new OpticalGraph("LaserTrace", this);
|
|
// Ask optical graph object to perform power optimization
|
|
bool success = optical_graph->performPowerOpt(getLaser("Laser"), laser_wavelengths, max_detectors, opt_util);
|
|
if (!success)
|
|
{
|
|
Log::printLine(std::cerr, "[Warning] " + getInstanceName() +
|
|
" -> Wavelengths contains data paths with no possible modulator configurations!");
|
|
}
|
|
// Trace the wavelengths the laser is outputting to find the output
|
|
// power needed by the laser
|
|
OpticalWavelength* wavelength = optical_graph->traceWavelength(laser_wavelengths, getLaser("Laser"));
|
|
// Calculate the power needed by the wavelength
|
|
double laser_power = wavelength->getLaserPower(max_detectors);
|
|
|
|
// Calculate NDD power
|
|
getNddPowerResult("Laser")->setValue(laser_power);
|
|
|
|
delete wavelength;
|
|
delete optical_graph;
|
|
}
|
|
|
|
} // namespace DSENT
|
|
|