Mighty-morphing power-SIMD

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Mighty-morphing power-SIMD
In modern wireless devices, two broad classes of compute-intensive applications are common: those with high amounts of data-level parallelism, such as signal processing used in wireless baseband applications, and those that have little data-level parallelism, such as encryption. Wide single-instruction multiple-data (SIMD) processors have become popular for providing high performance, yet power efficient data engines for applications with abundant data parallelism. However, the non-data-parallel applications are relegated to a low-performance scalar datapath on these data engines while the SIMD resources are left idle. To accelerate both types of applications, we propose the design of a more flexible SIMD datapath called SIMD-Morph. In SIMD-Morph, code with datalevel parallelism can be executed across the lanes in the traditional manner, but the lanes can be morphed into a feed-forward subgraph accelerator to execute scalar applications more efficiently. The morphed SIMD lanes form an...
Ganesh S. Dasika, Mark Woh, Sangwon Seo, Nathan Cl
Added 10 Feb 2011
Updated 10 Feb 2011
Type Journal
Year 2010
Authors Ganesh S. Dasika, Mark Woh, Sangwon Seo, Nathan Clark, Trevor N. Mudge, Scott A. Mahlke
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