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An Optimized Frame-Driven Routing Algorithm for Reconfigurable SRAM-Based FPGAs
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DOI：10.1109/ACCESS.2020.2978632.png)
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摘要
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Reconfigurable SRAM-based Field Programmable Gate Arrays (FPGAs) are everyday more attractive due to their high integration, performance, flexibility, and upgradability. Run-time reconfiguration improves the reconfigurable computing paradigm allowing to rewrite just a portion of the FPGA configuration memory on-line. This enhances the flexibility and provides opportunities for new high-performing architectures able to adjust in-flight the hardware to the current payload. However, the performance of reconfigurable architectures is bounded by the efficiency of the reconfiguration procedure, which in turn is bounded by the amount of configuration frames to be rewritten in the memory. Furthermore, the lack of tools and design software to implement optimized reconfigurable architectures makes their performance less efficient than expectation. In this work, we propose an approach to enhance the performance of reconfigurable systems by reducing the reconfiguration time of reconfigurable resources. Our method is based on a frame-driven routing algorithm able to drastically reduce the number of configuration memory frames used in the design. We evaluate the optimization achieved with our algorithm on several benchmark circuits of different size and we investigate the performance and the routability for different placement solutions. Experimental results confirm that our approach reduces the reconfiguration time up to 40% with respect to traditional reconfiguration approaches for a wide range of circuits.
Keyword:
Field programmable gate arrays
Routing
Switches
Hardware
Tools
Clocks
Memory management
Frame
partial reconfiguration
reconfiguration time
routing algorithm
SRAM-based FPGAs
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3.6
论文数:
9.8W
被引数:
29.4W
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