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A re-evaluation of the practicality of floating-point operations on FPGAs

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6 Author(s)
Ligon, W.B., III ; Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA ; McMillan, S. ; Monn, G. ; Schoonover, K.
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The use of reconfigurable hardware to perform high precision operations such as IEEE floating point operations has been limited in the past by FPGA resources. We discuss the implementation of IEEE single precision floating-point multiplication and addition. Then, we assess the practical implications of using these operations in the Xilinx 4000 series FPGAs considering densities available now and scheduled for the near future. For each operation, we present space requirements and performance information. This is followed by a discussion of an algorithm, matrix multiplication, based on these operations, which achieves performance comparable to conventional microprocessors. Algorithm implementation options and their performance implications are discussed and corresponding measured results are given

Published in:

FPGAs for Custom Computing Machines, 1998. Proceedings. IEEE Symposium on

Date of Conference:

15-17 Apr 1998