113 lines
5 KiB
INI
113 lines
5 KiB
INI
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# Name of model to be built and evaluated
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ModelName = PhotonicClos
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# Query string to choose what to evaluate (use '\' to enable multiline config)
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QueryString = \
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Energy>>PhotonicClos:AvgUnicast@1 \
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NddPower>>PhotonicClos:RingTuning@0 \
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NddPower>>PhotonicClos:Laser@0 \
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NddPower>>PhotonicClos:Leakage@0 \
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Area>>PhotonicClos:Active@0 \
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Area>>PhotonicClos:GlobalWire@0 \
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Area>>PhotonicClos:Photonic@0 \
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# Injection rate (# flits per cycle per site), assuming that the network is not
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# saturated and uniform random traffic
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InjectionRate = 0.1
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# Evaluation string
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EvaluateString = \
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dynamic = $(InjectionRate) * $(NumberInputSites) * $(Frequency) * $(Energy>>PhotonicClos:AvgUnicast); \
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leakage = $(NddPower>>PhotonicClos:Leakage); \
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ring_heating = $(NddPower>>PhotonicClos:RingTuning); \
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laser = $(NddPower>>PhotonicClos:Laser); \
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total = dynamic + leakage + ring_heating + laser; \
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energy_per_bit = total / ($(InjectionRate) * $(Frequency) * $(NumberInputSites) * $(NumberBitsPerFlit)); \
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active_area = $(Area>>PhotonicClos:Active); \
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global_area = $(Area>>PhotonicClos:GlobalWire); \
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photonic_area = $(Area>>PhotonicClos:Photonic); \
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print "Photonic Clos Network:"; \
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print " Dynamic power: " dynamic; \
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print " Leakage power: " leakage; \
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print " Laser power: " laser; \
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print " Ring Heater Power: " ring_heating; \
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print " Total power: " total; \
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print " Energy per bit: " energy_per_bit; \
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print " Active Area: " active_area; \
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print " Global Wire Area: " global_area; \
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print " Photonic Area: " photonic_area; \
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# Technology file (see other models in tech/models)
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ElectricalTechModelFilename = tech/tech_models/Bulk45LVT.model
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PhotonicTechModelFilename = tech/tech_models/Photonics.model
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###############################################################################
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# Timing optimization
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###############################################################################
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# Individual network components already optimize for timing, no need to do it
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# at the top-level
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# Operating frequency (Hz)
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Frequency = 4e9
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# NOTE: If you adjust Frequency, make sure you adjust SWSR->LinkDataRate
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# to make sure it is >= Frequency, since the model doesn't support serialization
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# ratios < 1.
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# Report timing
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IsReportTiming = true
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# Report timing
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ReportTiming->StartNetNames = [CK]
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###############################################################################
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# Model specifications
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###############################################################################
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# Clos Parameters
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# Number of sites that can send
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NumberInputSites = 64
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# Number of sites that can receive
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NumberOutputSites = 64
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# Bits per flit
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NumberBitsPerFlit = 64
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# Number of routers at each stage
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NumberIngressRouters = 8
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NumberMiddleRouters = 8
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NumberEgressRouters = 8
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# Router-specific parameters (see dsent.cfg.router for descriptions)
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Router->NumberVirtualNetworks = 3
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Router->NumberVirtualChannelsPerVirtualNetwork = [1,1,1]
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Router->NumberBuffersPerVirtualChannel = [4,1,1]
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Router->InputPort->BufferModel = DFFRAM
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Router->CrossbarModel = MultiplexerCrossbar
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Router->SwitchAllocator->ArbiterModel = MatrixArbiter
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Router->ClockTreeModel = BroadcastHTree
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Router->ClockTree->NumberLevels = 6
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Router->ClockTree->WireLayer = Intermediate
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Router->ClockTree->WireWidthMultiplier = 1.0
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# Electrical Link-specific parameters
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Link->WireLayer = Global
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Link->WireWidthMultiplier = 1.0
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Link->WireSpacingMultiplier = 1.0
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# Photonic link-specfic parameters
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# Link data rate (Hz), must be >= Frequency of the network
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SWSR->LinkDataRate = 4e9
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# Optimize the laser/modulator power balance for the given utilization
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SWSR->OptUtil = 0.5
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# Type of the laser. Current valid choices are: (Standard, Throttled)
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# Note, if you change this to throttled, the laser gets lumped into dynamic
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# power, so change the Ndd power query for laser appropriately
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SWSR->LaserType = Standard
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# Ring tuning method. Current valid choices are:
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# (FullThermal, AthermalWithTrim, ThermalWithBitReshuffle, ElectricalAssistWithBitReshuffle)
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SWSR->RingTuningMethod = ThermalWithBitReshuffle
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# Physical organization properties
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# Note: This model assumes a square network layout
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InputSitePitch = 1e-3
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OutputSitePitch = 1e-3
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