AstroLIT: enabling simulation-based microarchitecture comparison between Intel® and Transmeta designs

Authors:
Guilherme Ottoni;Gautham Chinya;Gerolf Hoflehner;Jamison Collins;Amit Kumar;Ethan Schuchman;David Ditzel;Ronak Singhal;Hong Wang
Affiliations:
Microarchitecture Research Lab, Intel Labs;Microarchitecture Research Lab, Intel Labs;Microarchitecture Research Lab, Intel Labs;Microarchitecture Research Lab, Intel Labs;Microarchitecture Research Lab, Intel Labs;Intel Architecture Group, Intel Corporation;Intel Architecture Group, Intel Corporation;Intel Architecture Group, Intel Corporation;Microarchitecture Research Lab, Intel Labs
Venue:
Proceedings of the 8th ACM International Conference on Computing Frontiers
Year:
2011

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Abstract

While the out-of-order engine has been the mainstream micro-architecture-design paradigm to achieve high performance, Transmeta took a different approach using dynamic binary translation (BT). To enable detailed comparison of these two radically different processor-design approaches, it is natural to leverage well-established simulation-based methodologies. However, BT-based processor designs pose new challenges to standard sampling-based simulation methodologies. This paper describes these challenges, and it also introduces the AstroLIT methodology to address them.