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.
81 lines
3.4 KiB
INI
81 lines
3.4 KiB
INI
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# Instance
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ModelName = ElectricalMesh
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# Query string used to choose what will be output by Orion
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QueryString = \
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Energy>>ElectricalMesh:AvgUnicast@0 \
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NddPower>>ElectricalMesh:Leakage@0 \
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Area>>ElectricalMesh:Active@0 \
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Area>>ElectricalMesh:GlobalWire@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) * $(NumberSites) * $(Frequency) * $(Energy>>ElectricalMesh:AvgUnicast); \
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leakage = $(NddPower>>ElectricalMesh:Leakage); \
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total = dynamic + leakage; \
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energy_per_bit = total / ($(InjectionRate) * $(Frequency) * $(NumberSites) * $(NumberBitsPerFlit)); \
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active_area = $(Area>>ElectricalMesh:Active); \
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global_area = $(Area>>ElectricalMesh:GlobalWire); \
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print "Electrical Mesh Network:"; \
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print " Dynamic power: " dynamic; \
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print " Leakage power: " leakage; \
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print " Total power: " total; \
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print " Energy per bit: " energy_per_bit; \
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print " Global Wire Area: " global_area; \
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print " Active Area: " active_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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###############################################################################
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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 = 1.0e9
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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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# Mesh Parameters
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ClockFrequency = 1e9
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NumberSites = 64
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NumberBitsPerFlit = 64
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NumberSitesPerRouter = 1
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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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# Physical organization properties
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# Note: This model assumes a square network layout
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SitePitch = 1e-3
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