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- W1981252059 abstract "Floating-point Sparse Matrix-Vector Multiplication (SpMXV) is a key computational kernel in scientific and engineering applications. The poor data locality of sparse matrices significantly reduces the performance of SpMXV on general-purpose processors, which rely heavily on the cache hierarchy to achieve high performance. The abundant hardware resources on current FPGAs provide new opportunities to improve the performance of SpMXV. In this paper, we propose an FPGA-based design for SpMXV. Our design accepts sparse matrices in Compressed Row Storage format, and makes no assumptions about the sparsity structure of the input matrix. The design employs IEEE-754 format double-precision floating-point multipliers/adders, and performs multiple floating-point operations as well as I/O operations in parallel. The performance of our design for SpMXV is evaluated using various sparse matrices from the scientific computing community, with the Xilinx Virtex-II Pro XC2VP70 as the target device. The MFLOPS performance increases with the hardware resources on the device as well as the available memory bandwidth. For example, when the memory bandwidth is 8 GB/s, our design achieves over 350 MFLOPS for all the test matrices. It demonstrates significant speedup over general-purpose processors particularly for matrices with very irregular sparsity structure. Besides solving SpMXV problem, our design provides a parameterized and flexible tree-based design for floating-point applications on FPGAs." @default.
- W1981252059 created "2016-06-24" @default.
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- W1981252059 date "2005-02-20" @default.
- W1981252059 modified "2023-09-30" @default.
- W1981252059 title "Sparse Matrix-Vector multiplication on FPGAs" @default.
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- W1981252059 doi "https://doi.org/10.1145/1046192.1046202" @default.
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