一种用于现代GPU架构的时序级执行驱动的软件模拟器.pdf

ATTILA: A Cycle-Level Execution-Driven Simulator for Modern GPU Architectures Victor Moya del Barrio, Carlos González, Jordi Roca, Agustín Fernández Department of Computer Architecture, Universitat Politècnica de Catalunya {vmoya, cgonzale, jroca, agustin}@ Roger Espasa Intel, DEG, Barcelona roger.espasa@ Abstract tion 2 describes the rendering algorithm and the microarchi- tecture of a GPU as implemented by the ATTILA simulator. The present work presents a cycle-level execution-driven Section 3 discusses the simulation model and the structure of simulator for modern GPU architectures. We discuss the sim- the different simulator components. Section 4 introduces our ulation model used for our GPU simulator, based in the con- OpenGL framework, used to feed the simulator with traces cept of boxes and signals, and the relation between the timing from real graphic applications. In section 5 a simple experi- simulator and the functional emulator. The simulation model mental test case is presented. Finally sections 6 and 7 present we use helps to increase the accuracy and reduce the number related work, conclusions and future work. of errors in the timing simulator while allowing for an easy extensibility of the simulated GPU architecture. We also intro- 2. ATTILA Architecture duce the OpenGL framework used to feed the simulator with traces