Full System Simulation and Compilation of Parsec Benchmarks on x86 Architecture

Full system simulation is a critical component in computer architecture research and development. It allows researchers and developers to evaluate the performance of hardware and software systems without the need for expensive physical hardware. In this article, we focus on simulating and compiling Parsec benchmarks, a suite of representative parallel workloads, on an x86 architecture.

What is Parsec?

Parsec is a benchmark suite designed to evaluate the performance of parallel computing systems. It includes a diverse set of workloads that span a wide range of applications, such as face recognition, video processing, and scientific computing. These benchmarks are representative of real-world parallel computing tasks and provide a valuable tool for evaluating the performance of parallel systems.

Why Simulate on x86?

x86 is a widely used computer architecture, found in most personal computers and servers. Simulating Parsec benchmarks on x86 allows researchers and developers to understand how their systems will perform in real-world scenarios. Additionally, x86 simulation tools, such as Gem5, provide detailed insights into system behavior, including CPU, memory, and I/O performance.

Steps for Full System Simulation and Compilation

1. Choose a Simulation Tool: Gem5 is a popular open-source simulator for x86 architectures. It supports full-system simulation, allowing you to run an entire operating system and applications within the simulator.
2. Set Up the Simulation Environment: Download and install Gem5 along with the necessary dependencies. Configure the simulator to match your target x86 system, including the CPU model, memory size, and other relevant parameters.
3. Obtain Parsec Benchmarks: Download the Parsec benchmark suite from its official repository. Ensure that you have the correct version compatible with your simulation environment.
4. Compile Parsec for Simulation: Modify the Parsec Makefile to target the simulator instead of a physical x86 system. This typically involves setting the appropriate compiler flags and libraries for simulation. Compile the benchmarks using the modified Makefile.
5. Run the Simulation: Configure the simulator to load the compiled Parsec benchmarks and execute them within the simulated environment. Monitor the system’s behavior and performance metrics to assess the benchmark’s performance.
6. Analyze and Optimize: Analyze the simulation results to identify performance bottlenecks and areas for improvement. Optimize the system configuration or benchmark code based on the insights gained from the simulation.

Practical Advice

• Ensure that you have a good understanding of both the simulation tool and the x86 architecture to maximize the effectiveness of your simulations.
• Regularly update your simulation environment and benchmark suite to stay up-to-date with the latest advancements in hardware and software.
• Take advantage of the detailed insights provided by the simulator to guide your system design and optimization efforts.

Full system simulation and compilation of Parsec benchmarks on an x86 architecture provide a powerful tool for evaluating and optimizing parallel computing systems. By following the steps outlined in this article, you can set up your own simulation environment, compile Parsec benchmarks, and gain valuable insights into your system’s performance.