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.
78 lines
2.6 KiB
C++
78 lines
2.6 KiB
C++
#include "model/optical/RingFilter.h"
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#include "model/optical_graph/OpticalWaveguide.h"
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#include "model/optical_graph/OpticalFilter.h"
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namespace DSENT
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{
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RingFilter::RingFilter(const String& instance_name_, const TechModel* tech_model_)
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: OpticalModel(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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RingFilter::~RingFilter()
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{}
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void RingFilter::initParameters()
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{
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addParameterName("InStart");
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addParameterName("InEnd");
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addParameterName("DropStart");
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addParameterName("DropEnd");
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addParameterName("DropAll", "TRUE");
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return;
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}
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void RingFilter::initProperties()
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{
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return;
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}
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void RingFilter::constructModel()
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{
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//TODO: Add tuning energy/ndd-power costs?
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// Create Area result
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Result* area_result = new AtomicResult("Photonic");
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addAreaResult(area_result);
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// Get parameters
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WavelengthGroup in_wavelengths = makeWavelengthGroup(getParameter("InStart"), getParameter("InEnd"));
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WavelengthGroup drop_wavelengths = makeWavelengthGroup(getParameter("DropStart"), getParameter("DropEnd"));
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bool drop_all = getParameter("DropAll");
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// Create optical ports
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createOpticalInputPort( "In", in_wavelengths);
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createOpticalOutputPort( "Drop", drop_wavelengths);
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createOpticalOutputPort( "Out", in_wavelengths);
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// Create the filter
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createFilter( "RingFilter", in_wavelengths, drop_all, drop_wavelengths);
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OpticalFilter* ring_filter = getFilter("RingFilter");
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// Connect the filter
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getWaveguide("In")->addDownstreamNode(ring_filter);
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ring_filter->addDownstreamNode(getWaveguide("Out"));
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ring_filter->setDropPort(getWaveguide("Drop"));
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}
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void RingFilter::updateModel()
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{
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//TODO: Get numbers from tech model;
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double ring_area = 200e-12;
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double thru_loss = 1e-4;
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double drop_loss = 1.0;
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// Get parameters
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WavelengthGroup drop_wavelengths = makeWavelengthGroup(getParameter("DropStart"), getParameter("DropEnd"));
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int number_wavelengths = drop_wavelengths.second - drop_wavelengths.first + 1;
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// Update losses
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OpticalFilter* ring_filter = getFilter("RingFilter");
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ring_filter->setLoss(thru_loss * number_wavelengths);
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ring_filter->setDropLoss(drop_loss + thru_loss * number_wavelengths);
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// Update area
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getAreaResult("Photonic")->setValue(ring_area * (number_wavelengths));
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}
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} // namespace DSENT
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