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• W4285207478 abstract "When a coarse-grained reconfigurable array (CGRA) architecture shifts toward cross-domain acceleration, control flow and memory accesses often degrade the processing elements (PEs) utilization and array efficiency by breaking the intact dataflow graph (DFG) into regions with mismatched pipelining rate and access–execution stages. In this article, we propose a reschedulable dataflow and SIMD execution, which decouples the DFG with mismatched dataflow into multiple independent subgraphs. We map only one subgraph at a time but with fully unrolling, and reschedule different subgraphs serially in the runtime. Therefore, each subgraph works in its own way without interfering with others. At the same time, an individual subgraph can execute its dataflow in stream for utilization improvement, while unrolled instances composing as SIMD facilitate request coalescing for efficient memory access. With lightweight hardware modification, our design can be integrated in a general CGRA architecture. The experimental results show that our proposal improves the performance and energy efficiency over stream-dataflow CGRA in static-scheduling (Plasticine) by <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$1.6times $ </tex-math></inline-formula> and <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$1.8times $ </tex-math></inline-formula> , over which in dynamic scheduling (TIA) by <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$1.5times $ </tex-math></inline-formula> and <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$2.7times $ </tex-math></inline-formula> , and outperforms Plasticine organized in vector-SIMD by <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$1.2times $ </tex-math></inline-formula> and <inline-formula xmlns:mml=http://www.w3.org/1998/Math/MathML xmlns:xlink=http://www.w3.org/1999/xlink> <tex-math notation=LaTeX>$1.4times $ </tex-math></inline-formula> ." @default.
• W4285207478 created "2022-07-14" @default.
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• W4285207478 date "2023-03-01" @default.
• W4285207478 modified "2023-09-26" @default.
• W4285207478 title "A Reschedulable Dataflow-SIMD Execution for Increased Utilization in CGRA Cross-Domain Acceleration" @default.
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• W4285207478 doi "https://doi.org/10.1109/tcad.2022.3185544" @default.
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