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Basic Block Distribution Analysis to Find Periodic Behavior and Simulation Points in Applications
Abstract
Modern architecture research relies heavily on detailed pipeline simulation. The section of the program simulated is of great importance to the relevance and correctness of a study, since the behavior of the program can vary significantly during different phases of a program's execution. In this paper we propose Basic Block Distribution Analysis as a semi-automatic approach for determining where to simulate in order to achieve a representative sample of the program. This approach is based upon using the profiles of a program's code structure (basic blocks) to uniquely identify different phases of execution in the program. We show that this analysis accurately finds the periodic (cyclic) behavior exhibited during a program's execution across several different architectural metrics (e.g., IPC, branch miss rate, cache miss rates, value misprediction, address misprediction, and reorder buffer occupancy). More importantly, our basic block analysis finds simulation points representative of the whole program's execution for these different architectural features.
Pre-2018 CSE ID: CS2001-0667
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