Presentation | 2010-09-16 Hardware Lossless-Compressors of Floating-Point Data Streams to Enhance Memory Bandwidth Kentaro SANO, Kazuya KATAHIRA, Satoru YAMAMOTO, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | This paper presents an FPGA-based lossless compressor that directly compresses floating-point data streams to enhance the effective memory bandwidth of a lattice Boltzmann method (LBM) accelerator. We show that the compression algorithms based on the 1D polynomial prediction are suitable for high-throughput hardware design. Moreover we show that integer operations provide comparable prediction performance to a floating-point predictor, while an integer predictor is expected to have smaller circuits than a floating-point one. We evaluate the compression ratio, the operating frequency and the resource consumption of the compressors with integer-based predictors through their prototype implementation using ALTERA Stratix III FPGA. We demonstrate that the implemented compressors dominate only 0.15 to 0.23 % of the entire logic resources and operate at 95 to 174 MHz to provide the compression ratio of up to 3.5, which means that we can enhance the memory bandwidth by a factor of 3.5 on average. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Lossless Data Compression / Floating-Point Data / Memory Bandwidth / Stream Computation |
Paper # | RECONF2010-24 |
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Committee | RECONF |
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Conference Date | 2010/9/9(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Reconfigurable Systems (RECONF) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Hardware Lossless-Compressors of Floating-Point Data Streams to Enhance Memory Bandwidth |
Sub Title (in English) | |
Keyword(1) | Lossless Data Compression |
Keyword(2) | Floating-Point Data |
Keyword(3) | Memory Bandwidth |
Keyword(4) | Stream Computation |
1st Author's Name | Kentaro SANO |
1st Author's Affiliation | Graduate School of Information Sciences, Tohoku University() |
2nd Author's Name | Kazuya KATAHIRA |
2nd Author's Affiliation | Graduate School of Information Sciences, Tohoku University |
3rd Author's Name | Satoru YAMAMOTO |
3rd Author's Affiliation | Graduate School of Information Sciences, Tohoku University |
Date | 2010-09-16 |
Paper # | RECONF2010-24 |
Volume (vol) | vol.110 |
Number (no) | 204 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |