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ATTILA: a cycle-level execution-driven simulator for modern GPU architectures

Victor Moya del Barrio, Carlos Gonzalez, Jordi Roca, Agustin Fernandez
Department of Computer Architecture, Universitat Politecnica de Catalunya
IEEE International Symposium on Performance Analysis of Systems and Software, 2006

@conference{del2006attila,

   title={ATTILA: A cycle-level execution-driven simulator for modern GPU architectures},

   author={del Barrio, V.M. and Gonz{‘a}lez, C. and Roca, J. and Fern{‘a}ndez, A. and Espasa, E.},

   booktitle={Performance Analysis of Systems and Software, 2006 IEEE International Symposium on},

   pages={231–241},

   isbn={1424401860},

   year={2006},

   organization={IEEE}

}

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The present work presents a cycle-level execution-driven simulator for modern GPU architectures. We discuss the simulation model used for our GPU simulator, based in the concept of boxes and signals, and the relation between the timing simulator and the functional emulator. The simulation model we use helps to increase the accuracy and reduce the number of errors in the timing simulator while allowing for an easy extensibility of the simulated GPU architecture. We also introduce the OpenGL framework used to feed the simulator with traces from real applications (UT2004, Doom3) and a performance debugging tool (Signal Trace Visualizer). The presented ATTILA simulator supports the simulation of a whole range of GPU configurations and architectures, from the embedded segment to the high end PC segment, supporting both the unified and non unified shader architectural models.
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