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A lightweight speculative and predicative scheme for hardware execution

Authors: Razvan Nane; Vlad Mihai Sima; Koen Bertels;

A lightweight speculative and predicative scheme for hardware execution

Abstract

If-conversion is a known software technique to speedup applications containing conditional expressions and targeting processors with predication support. However, the success of this scheme is highly dependent on the structure of the if-statements, i.e., if they are balanced or unbalanced, as well as on the path taken. Therefore, the predication scheme does not always provide a better execution time than the conventional jump scheme. In this paper, we present an algorithm that leverages the benefits of both jump and predication schemes adapted for hardware execution. The results show that performance degradation is not possible anymore for the unbalanced if-statements as well as a speedup for all test cases between 4% and 21%.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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