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Exposed Datapath for Efficient Computing

Björk, Magnus, 1977 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Själander, Magnus, 1977 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Svensson, Lars, 1960 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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Thuresson, Martin, 1977 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Hughes, John, 1958 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Jeppson, Kjell, 1947 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Karlsson, Jonas, 1979 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Larsson-Edefors, Per, 1967 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Sheeran, Mary, 1959 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Stenström, Per, 1957 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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 (creator_code:org_t)
2006
English.
Related links:
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  • Reports (other academic/artistic)
Abstract Subject headings
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  • We introduce FlexCore, which is the first exemplar of a processor based on the FlexSoC processor paradigm. TheFlexCore utilizes an exposed datapath for increased performance. Microbenchmarks yield a performance boost of a factor of two over a traditional five-stage pipeline with the same functional units as the FlexCore.We describe our approach to compiling for the FlexCore.A flexible interconnect allows the FlexCore datapath to bedynamically reconfigured as a consequence of code generation. Additionally, specialized functional units may be introduced and utilized within the same architecture and compilation framework. The exposed datapath requires a wide control word. The conducted evaluation of two micro benchmarks confirms that this increases the instruction bandwidth and memory footprint. This calls for an efficient instruction decoding as proposed in the FlexSoC paradigm.

Subject headings

NATURVETENSKAP  -- Data- och informationsvetenskap -- Datorteknik (hsv//swe)
NATURAL SCIENCES  -- Computer and Information Sciences -- Computer Engineering (hsv//eng)

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