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ABSTRACT Rapid Design Space Exploration of Heterogeneous Embedded Systems using Symbolic Search and Multi-Granular Simulation ∗
| Content Provider | CiteSeerX |
|---|---|
| Author | Mohanty, S. Prasanna, V. K. |
| Abstract | In addition to integrating different Intellectual Property cores, heterogeneous embedded systems provide several architecture knobs such as voltage, operating frequency, configuration, etc. that can be varied to optimize performance. Such flexibilities results in a large design space making system optimization a very challenging task. Moreover, such systems operate in mobile and other power constrained environments. Therefore, in addition to rapid exploration of a large design space a designer has to optimize both time and energy performance. To address these issues, we propose a hierarchical design space exploration methodology. Our methodology initially uses symbolic constraint satisfaction to rapidly prune the design space. This pruning process is followed by a system wide performance estimation to further reduce the number of candidate designs. Finally, detailed simulation using low-level simulators are performed to select an appropriate design. Our methodology is implemented by integrating two tools, DESERT and HiPerE, into the Model based Integrated simuLAtioN (MILAN) 1 framework. DESERT uses Ordered Binary Decision Diagrams based symbolic search to rapidly explore a large design space and identifies candidate designs that meet the user specified performance constraints. HiPerE provides rapid estimation of system wide energy and latency based on component level simulations and also facilitates energy optimization. MI-LAN provides the required modeling support for these tools and also facilitates component specific multi-granular simulations through seamless integration of various simulators. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Symbolic Search Multi-granular Simulation Heterogeneous Embedded System Abstract Rapid Design Space Exploration Large Design Space Ordered Binary Decision Diagram Flexibility Result Seamless Integration Rapid Estimation Candidate Design Detailed Simulation System Wide Performance Estimation Design Space Energy Performance Performance Constraint Required Modeling Support Hierarchical Design Space Exploration Methodology Different Intellectual Property Core System Wide Energy Component Specific Multi-granular Simulation Several Architecture Knob Energy Optimization Integrated Simulation Symbolic Constraint Satisfaction Component Level Simulation Low-level Simulator Rapid Exploration Various Simulator Appropriate Design Pruning Process |
| Content Type | Text |
