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- W2066886134 abstract "This paper presents a performance model of an LBM accelerator to be implemented on a tightly-coupled FPGA cluster. In strong scaling, each accelerator node has a smaller computation as the nodes increase, and consequently communication overhead becomes apparent and limits the scalability. Our tightly-coupled FPGA cluster has the 1D ring of the accelerator-domain network (ADN) which allows FPGAs to send and receive data with low communication overhead. We propose the LBM accelerator architecture and its stream computation appropriate to use ADN. We formulate a sustained-performance model of the accelerator, which consists of three cases depending on one of the resource availability, the network bandwidth and the size of shift-registers. With the model, we show that the network bandwidth is much more important than the memory bandwidth. The wider the network bandwidth is, the more FPGAs can scale the sustained performance in computing a constant size of a lattice. This result demonstrates the importance of ADN in the tightly-coupled FPGA cluster." @default.
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- W2066886134 date "2012-08-01" @default.
- W2066886134 modified "2023-09-27" @default.
- W2066886134 title "Scalability analysis of tightly-coupled FPGA-cluster for lattice Boltzmann computation" @default.
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- W2066886134 doi "https://doi.org/10.1109/fpl.2012.6339275" @default.
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