Towards a Framework to Evaluate Performance of the NoCs
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Towards a Framework to Towards a Framework to Evaluate Performance of the Evaluate Performance of the NoCs NoCs Mahmoud Moadeli University of Glasgow
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Mahmoud Moadeli University of Glasgow. Towards a Framework to Evaluate Performance of the NoCs. System on Chip. Hardware component at very small size have been realized A large amount of computational power is on single chip Mobile phones, handheld devices, and…. Traditional SoC Nightmare. - PowerPoint PPT Presentation
Transcript of Towards a Framework to Evaluate Performance of the NoCs
Towards a Framework to Evaluate Towards a Framework to Evaluate Performance of the NoCsPerformance of the NoCs
Mahmoud Moadeli
University of Glasgow
System on Chip
Hardware component at very small size have been realized A large amount of computational power is on single chip Mobile phones, handheld devices, and…
Traditional SoC NightmareTraditional SoC Nightmare
Variety of dedicated interfaces
Poor separation between computation and communication.
Design and Scalability Complexity
Performance!!!!?????
On-Chip NetworksOn-Chip Networks
Structure Modularity Interface
What affects the performance of a NoCWhat affects the performance of a NoC
Topology Switching Routing
IP (Intellectual property) mapping
Tools and Techniques Adopted so far
Markovian Techniques (PEPA) Queuing Networks
Problems in using Markovian Models
Models are becoming Prohibitively Large to Develop Not Scalable Deriving Measures of Interest is not trivial
Adopting Queuing Networks
Appropriate Queuing Models Extensive Traffic Analysis
Performance Aware DescriptionFunctional Requirements Non Functional
Requirements
Proposing an Architecture and IP Mapping
Architectural Description of the System
Decomposition of System and Traffic Analysis
Queuing Networks
Stochastic Processes
Markov
SPN SPA
Application layer
Architecture Layer
Composition Layer
Performance Analysis Layer
Functional Requirements Non Functional Requirements
Proposing an Architecture and IP Mapping
Architectural Description of the System
Decomposition of System and Traffic Analysis
Queuing Networks
Stochastic Processes
Markov
SPN SPA
Application layer
Architecture Layer
Composition Layer
Performance Analysis Layer
Application Layer
Graphs may represent functional behaviour Non functional requirements have to be informally specified
separately High level analysis may be performed to optimize the system The analysis tools may propose a description of the system as
architecture level
Architecture Layer
System specifications such as routing, switching topology and IP mapping is known
The analysis tools decompose the system to components to enable compositional performance evaluation of the system
Composition Layer
The system is described using a compositional approach such as SPA or queuing networks
Performance Analysis Layer
The actual analysis is carried out in this layer Available queuing models have been verified for only simplest
traffics The credibility of the models has to be researched for more
realistic traffic
Thank you!
