Presentation 2015-04-17
Off-loading to PEACH2 of Gravitational Calculation
Chiharu Tsuruta, Takuya Kuhara, Miki Yohei, Hideharu Amano,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) On-the-fly computation in the field-programmable gate array (FPGA) used for the switching hub is one potential way to accelerate the computation of data exchanged through the hub. However, for large scale scientific computation, it is difficult to implement such an accelerator on the FPGA used in high performance computers. Here, a hardware local essential tree (LET) generator used in an N-body simulation is implemented on the FPGA of PEACH2 (PCI Express Adaptive Communication Hub ver2), a low latency switching hub for high performance GPU clusters. By using the pipelined on-the-fly execution with a multipole acceptance criterion judging module and a data updating module, the generation performance is 2.2 times faster than that with the CPU. When data communication is considered, a performance 7.2 times faster than when using the CPU can be achieved.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) FPGA / PEACH2 / Off-loading / N-body simulation
Paper # CPSY2015-2,DC2015-2
Date of Issue 2015-04-10 (CPSY, DC)

Conference Information
Committee DC / CPSY
Conference Date 2015/4/17(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Nobuyasu Kanekawa(Hitachi) / Tsutomu Yoshinaga(Univ. of Electro-Comm.)
Vice Chair Michiko Inoue(NAIST) / Akira Asato(Fujitsu) / Yasuhiko Nakajima(NAIST)
Secretary Michiko Inoue(RTRI) / Akira Asato(Osaka Univ.) / Yasuhiko Nakajima(Hiroshima Univ.)
Assistant / Hiroaki Inoue(NEC) / Takeshi Ohkawa(Utsunomiya Univ.)

Paper Information
Registration To Technical Committee on Dependable Computing / Technical Committee on Computer Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Off-loading to PEACH2 of Gravitational Calculation
Sub Title (in English)
Keyword(1) FPGA
Keyword(2) PEACH2
Keyword(3) Off-loading
Keyword(4) N-body simulation
1st Author's Name Chiharu Tsuruta
1st Author's Affiliation Keio University(Keio univ.)
2nd Author's Name Takuya Kuhara
2nd Author's Affiliation Keio University(Keio univ.)
3rd Author's Name Miki Yohei
3rd Author's Affiliation University of Tsukuba(Univ. of Tsukuba)
4th Author's Name Hideharu Amano
4th Author's Affiliation Keio University(Keio univ.)
Date 2015-04-17
Paper # CPSY2015-2,DC2015-2
Volume (vol) vol.115
Number (no) CPSY-7,DC-8
Page pp.pp.7-12(CPSY), pp.7-12(DC),
#Pages 6
Date of Issue 2015-04-10 (CPSY, DC)