| Presentation | 2016-10-06 [Poster Presentation] A Loss-Less Data Compression Algorithm for GPUs Shunji Funasaka, Koji Nakano, Yasuaki Ito, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | There is no doubt that data compression is very important in computer engineering. However, most lossless data compression and decompression algorithms are very hard to parallelize, because they use dictionaries updated sequentially. The main contribution of this paper is to present a new lossless data compression method that we call CUDA Loss-Less (CULL) compression. It is designed so that decompression can be highly parallelized and run very efficiently on the GPU. This makes sense for many applications in which compressed data is read and decompressed many times and decompression performed more frequently than compression. We show optimal sequential and parallel algorithms for CULL decompression and implement them to run on Core~i7-4790 CPU and GeForce GTX~1080 GPU, respectively. To show the potentiality of CULL compression method, we have evaluated the running time using five images and compared with well-known compression methods LZW and LZSS. Our GPU implementation of CULL decompression runs 91.1-176 times faster than the CPU implementation. Also, the running time on the GPU of our experiments show that CULL decompression is 2.49-9.13 times faster than LZW decompression and 4.30-14.1 times faster that LZSS decompression, although their compression ratios are comparable. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | data compression / parallel algorithms / GPGPU |
| Paper # | CPSY2016-46 |
| Date of Issue | 2016-09-29 (CPSY) |
| Conference Information | |
| Committee | CPSY / IPSJ-ARC |
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| Conference Date | 2016/10/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Makuhari-messe |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Emerging Computer Systems Exhibition |
| Chair | Yasuhiko Nakashima(NAIST) |
| Vice Chair | Koji Nakano(Hiroshima Univ.) / Hidetsugu Irie(Univ. of Tokyo) |
| Secretary | Koji Nakano(Fujitsu Labs.) / Hidetsugu Irie(NII) |
| Assistant | Takeshi Ohkawa(Utsunomiya Univ.) / Shinya Takameda(NAIST) |
| Paper Information | |
| Registration To | Technical Committee on Computer Systems / Special Interest Group on System Architecture |
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| Language | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] A Loss-Less Data Compression Algorithm for GPUs |
| Sub Title (in English) | |
| Keyword(1) | data compression |
| Keyword(2) | parallel algorithms |
| Keyword(3) | GPGPU |
| 1st Author's Name | Shunji Funasaka |
| 1st Author's Affiliation | Hiroshima University(Hiroshima Univ.) |
| 2nd Author's Name | Koji Nakano |
| 2nd Author's Affiliation | Hiroshima University(Hiroshima Univ.) |
| 3rd Author's Name | Yasuaki Ito |
| 3rd Author's Affiliation | Hiroshima University(Hiroshima Univ.) |
| Date | 2016-10-06 |
| Paper # | CPSY2016-46 |
| Volume (vol) | vol.116 |
| Number (no) | CPSY-240 |
| Page | pp.pp.19-24(CPSY), |
| #Pages | 6 |
| Date of Issue | 2016-09-29 (CPSY) |