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| Presentation | 2014-09-19 11:00 GRAPE9-MPX: A development of an accelerator dedicated for arbitrary-precision arithmetic by the FPGA boards Shinji Motoki (KEK), Hiroshi Daisaka (Hitotsubashi Univ.), Naohito Nakasato (Univ. of Aizu), Tadashi Ishikawa, Fukuko Yuasa (KEK), Toshiyuki Fukushige, Atsushi Kawai (K & F Computing Research), Junichiro Makino (RIKEN/TITECH)  RECONF2014-29 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Higher order corrections in perturbative quantum field theory are required for precise theoretical analysis to investigate the new physics. Feynman loop diagrams which appear in the calculation of the corrections are taken into account, leading to the evaluation of loop integrals. We developed GRAPE9-MPX system consisting of multiple FPGA boards to accelerate parallel computation of loop integrals. In the system, we implemented Processor Elements (PE) to realize quadruple/hexuple-precision arithmetics in FPGA. The theoretical perk speed in the current implementation is about 6.6 Gflops (quadruple-precision) and 3.2 Gflops (hexuple-precision). With the compiler we are developing, the program code is generated automatically with only inserting directives in C/C++ code. We present performance results for the case of Feynman two-loop integrals with quadruple precision and achieve the effective performance of 2.4Gflops for 1 board, 4.7Gflops for 2 boards, and 9.1Gflops for 4 boards, respectively. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | multiple-precision arithmetic / quadruple precision / FPGA / Feynman amplitude / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 223, RECONF2014-29, pp. 69-74, Sept. 2014. | |
| Paper # | RECONF2014-29 | |
| Date of Issue | 2014-09-11 (RECONF) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | RECONF2014-29 |
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| Conference Information | |
| Committee | RECONF |
| Conference Date | 2014-09-18 - 2014-09-19 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Reconfigurable Systems, etc. |
| Paper Information | |
| Registration To | RECONF |
| Conference Code | 2014-09-RECONF |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | GRAPE9-MPX: A development of an accelerator dedicated for arbitrary-precision arithmetic by the FPGA boards |
| Sub Title (in English) | |
| Keyword(1) | multiple-precision arithmetic |
| Keyword(2) | quadruple precision |
| Keyword(3) | FPGA |
| Keyword(4) | Feynman amplitude |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Shinji Motoki |
| 1st Author's Affiliation | High Energy Accelerator Research Organization (KEK) |
| 2nd Author's Name | Hiroshi Daisaka |
| 2nd Author's Affiliation | Hitotsubashi University (Hitotsubashi Univ.) |
| 3rd Author's Name | Naohito Nakasato |
| 3rd Author's Affiliation | University of Aizu (Univ. of Aizu) |
| 4th Author's Name | Tadashi Ishikawa |
| 4th Author's Affiliation | High Energy Accelerator Research Organization (KEK) |
| 5th Author's Name | Fukuko Yuasa |
| 5th Author's Affiliation | High Energy Accelerator Research Organization (KEK) |
| 6th Author's Name | Toshiyuki Fukushige |
| 6th Author's Affiliation | K & F Computing Research Corporation (K & F Computing Research) |
| 7th Author's Name | Atsushi Kawai |
| 7th Author's Affiliation | K & F Computing Research Corporation (K & F Computing Research) |
| 8th Author's Name | Junichiro Makino |
| 8th Author's Affiliation | RIKEN Advanced Institute for Computational Science/Earth-Life Science Institute, Tokyo Institute of Technology (RIKEN/TITECH) |
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| Speaker | Author-1 |
| Date Time | 2014-09-19 11:00:00 |
| Presentation Time | 25 minutes |
| Registration for | RECONF |
| Paper # | RECONF2014-29 |
| Volume (vol) | vol.114 |
| Number (no) | no.223 |
| Page | pp.69-74 |
| #Pages | 6 |
| Date of Issue | 2014-09-11 (RECONF) |
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