Title page for ETD etd-12052003-151950


Type of Document Master's Thesis
Author Patel, Hiren Dhanji
Author's Email Address hipatel2@vt.edu
URN etd-12052003-151950
Title HEMLOCK: HEterogeneous ModeL Of Computation Kernel for SystemC
Degree Master of Science
Department Electrical and Computer Engineering
Advisory Committee
Advisor Name Title
Shukla, Sandeep K. Committee Chair
Armstrong, James R. Committee Member
Hsiao, Michael S. Committee Member
Keywords
  • Models Of Computation
  • System Level Modelling
  • SystemC
  • Heterogeneous Modelling
  • Discrete-Event Simulation
  • Embedded Systems
  • Synchronous Data Flow
Date of Defense 2003-12-03
Availability unrestricted
Abstract
As SystemC gains popularity as a System Level Design Language (SLDL) for System-On-Chip (SOC) designs, heterogeneous modelling and efficient simulation become increasingly important. The key in making an SLDL heterogeneous is the facility to express different Models Of Computation (MOC). Currently, all SystemC models employ a Discrete-Event simulation kernel making it difficult to express most MOCs without specific designer guidelines. This often makes it unnatural to express different MOCs in SystemC. For the simulation framework, this sometimes results in unnecessary delta cycles for models away from the Discrete-Event MOC, hindering the simulation performance of the model. Our goal is to extend SystemC's simulation framework to allow for better modelling expressiveness and efficiency for the Synchronous Data Flow (SDF) MOC. The SDF MOC follows a paradigm where the production and consumption rates of data by a function block are known a priori. These systems are common in Digital Signal Processing applications where relative sample rates are specified for every component. Knowledge of these rates enables the use of static scheduling. When compared to dynamic scheduling of SDF models, we experience a noticeable improvement in simulation efficiency. We implement an extension to the SystemC kernel that exploits such static scheduling for SDF models and propose designer style guidelines for modelers to use this extension. The modelling paradigm becomes more natural to SDF which results to better simulation efficiency. We will distribute our implementation to the SystemC community to demonstrate that SystemC can be a heterogeneous SLDL.
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