Automatic Application-Specific Instruction-Set Extensions Under Microarchitectural Constraints (2003)
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BibTeX
@MISC{Atasu03automaticapplication-specific,
author = {Kubilay Atasu and et al.},
title = {Automatic Application-Specific Instruction-Set Extensions Under Microarchitectural Constraints},
year = {2003}
}
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Abstract
Many commercial processors now offer the possibility of extending their instruction set for a specific application---that is, to introduce customised functional units. There is a need to develop algorithms that decide automatically, from highlevel application code, which operations are to be carried out in the customised extensions. A few algorithms exist but are severely limited in the type of operation clusters they can choose and hence reduce significantly the effectiveness of specialisation. In this paper we introduce a more general algorithm which selects maximal-speedup convex subgraphs of the application dataflow graph under fundamental microarchitectural constraints, and which improves significantly on the state of the art.
