Towards a Low-Power Accelerator of Many FPGAs for Stencil Computations. - Ryohei Kobayashi 001; Shinya Takamaeda-Yamazaki; Kenji Kise (ICNC, 2012)

A Challenge of Portable and High-Speed FPGA Accelerator. - Takuma Usui; Ryohei Kobayashi 001; Kenji Kise (ARC, 2015)

Effective Parallel Simulation of ArchHDL under Manycore Environment. - Tomohiro Misono; Ryohei Kobayashi 001; Shimpei Sato; Kenji Kise (CANDAR, 2015)

FACE: Fast and Customizable Sorting Accelerator for Heterogeneous Many-core Systems. - Ryohei Kobayashi 001; Kenji Kise (MCSoC, 2015)

Reconfigurable IBM PC Compatible SoC for Computer Architecture Education and Research. - Eri Ogawa; Yuki Matsuda 003; Tomohiro Misono; Ryohei Kobayashi 001; Kenji Kise (MCSoC, 2015)

A High-speed Verilog HDL Simulation Method using a Lightweight Translator. - Ryohei Kobayashi 001; Tomohiro Misono; Kenji Kise (SIGARCH Comput. Archit. News, 2016)

A High Performance FPGA-Based Sorting Accelerator with a Data Compression Mechanism. - Ryohei Kobayashi 001; Kenji Kise (IEICE Trans. Inf. Syst., 2017)

Accelerating Space Radiative Transfer on FPGA using OpenCL. - Norihisa Fujita; Ryohei Kobayashi 001; Yoshiki Yamaguchi; Yuma Oobata; Taisuke Boku; Makito Abe; Kohji Yoshikawa; Masayuki Umemura (HEART, 2018)

OpenCL-ready High Speed FPGA Network for Reconfigurable High Performance Computing. - Ryohei Kobayashi 001; Yuma Oobata; Norihisa Fujita; Yoshiki Yamaguchi; Taisuke Boku (HPC Asia, 2018)

ArchHDL: A Novel Hardware RTL Modeling and High-Speed Simulation Environment. - Shimpei Sato; Ryohei Kobayashi 001; Kenji Kise (IEICE Trans. Inf. Syst., 2018)

Parallel Processing on FPGA Combining Computation and Communication in OpenCL Programming. - Norihisa Fujita; Ryohei Kobayashi 001; Yoshiki Yamaguchi; Taisuke Boku (IPDPS Workshops, 2019)

GPU-FPGA Heterogeneous Computing with OpenCL-Enabled Direct Memory Access. - Ryohei Kobayashi 001; Norihisa Fujita; Yoshiki Yamaguchi; Ayumi Nakamichi; Taisuke Boku (IPDPS Workshops, 2019)

Accelerating Radiative Transfer Simulation with GPU-FPGA Cooperative Computation. - Ryohei Kobayashi 001; Norihisa Fujita; Yoshiki Yamaguchi; Taisuke Boku; Kohji Yoshikawa; Makito Abe; Masayuki Umemura (ASAP, 2020)

Toward OpenACC-enabled GPU-FPGA Accelerated Computing. - Norihisa Fujita; Ryohei Kobayashi 001; Yoshiki Yamaguchi; Kohji Yoshikawa; Makito Abe; Masayuki Umemura (CLUSTER, 2020)

Performance Evaluation of Pipelined Communication Combined with Computation in OpenCL Programming on FPGA. - Norihisa Fujita; Ryohei Kobayashi 001; Yoshiki Yamaguchi; Tomohiro Ueno; Kentaro Sano; Taisuke Boku (IPDPS Workshops, 2020)

OpenCL-enabled Parallel Raytracing for Astrophysical Application on Multiple FPGAs with Optical Links. - Norihisa Fujita; Ryohei Kobayashi 001; Yoshiki Yamaguchi; Taisuke Boku; Kohji Yoshikawa; Makito Abe; Masayuki Umemura (H2RC@SC, 2020)

Multi-Hybrid Accelerated Simulation by GPU and FPGA on Radiative Transfer Simulation in Astrophysics. - Ryohei Kobayashi 001; Norihisa Fujita; Yoshiki Yamaguchi; Taisuke Boku; Kohji Yoshikawa; Makito Abe; Masayuki Umemura (J. Inf. Process., 2020)

HBM2 Memory System for HPC Applications on an FPGA. - Norihisa Fujita; Ryohei Kobayashi 001; Yoshiki Yamaguchi; Taisuke Boku (CLUSTER, 2021)

An efficient RTL buffering scheme for an FPGA-accelerated simulation of diffuse radiative transfer. - Kazuki Furukawa; Ryohei Kobayashi 001; Tomoya Yokono; Norihisa Fujita; Yoshiki Yamaguchi; Taisuke Boku; Kohji Yoshikawa; Masayuki Umemura (FPT, 2021)

A Sorting Library for FPGA Implementation in OpenCL Programming. - Ryohei Kobayashi 001; Kento Miura; Norihisa Fujita; Taisuke Boku; Toshiyuki Amagasa (HEART, 2021)

Performance Evaluation of OpenCL-Enabled Inter-FPGA Optical Link Communication Framework CIRCUS and SMI. - Ryuta Kashino; Ryohei Kobayashi 001; Norihisa Fujita; Taisuke Boku (HPC Asia, 2021)

An FPGA-based Accelerator for Regular Path Queries over Edge-labeled Graphs. - Kento Miura; Ryohei Kobayashi 001; Toshiyuki Amagasa; Hiroyuki Kitagawa; Norihisa Fujita; Taisuke Boku (IEEE Big Data, 2022)

Implementation and Performance Evaluation of Memory System Using Addressable Cache for HPC Applications on HBM2 Equipped FPGAs. - Norihisa Fujita; Ryohei Kobayashi 001; Yoshiki Yamaguchi; Taisuke Boku (Euro-Par Workshops, 2022)

Performance Evaluation on GPU-FPGA Accelerated Computing Considering Interconnections between Accelerators. - Yuka Sano; Ryohei Kobayashi 001; Norihisa Fujita; Taisuke Boku (HEART, 2022)

Multi-hetero Acceleration by GPU and FPGA for Astrophysics Simulation on oneAPI Environment. - Ryuta Kashino; Ryohei Kobayashi 001; Norihisa Fujita; Taisuke Boku (HPC Asia, 2022)

Cygnus - World First Multihybrid Accelerated Cluster with GPU and FPGA Coupling. - Taisuke Boku; Norihisa Fujita; Ryohei Kobayashi 001; Osamu Tatebe (ICPP Workshops, 2022)

Performance Evaluation of Data Transfer API for Rank Level Approximate Computing on HPC Systems. - Yoshiyuki Morie; Yasutaka Wada; Ryohei Kobayashi 001; Ryuichi Sakamoto (IPDPS Workshops, 2022)

Accelerating Radiative Transfer Simulation on NVIDIA GPUs with OpenACC. - Ryohei Kobayashi 001; Norihisa Fujita; Yoshiki Yamaguchi; Taisuke Boku; Kohji Yoshikawa; Makito Abe; Masayuki Umemura (PDCAT, 2022)

An Open-source FPGA Library for Data Sorting. - Ryohei Kobayashi 001; Kento Miura; Norihisa Fujita; Taisuke Boku; Toshiyuki Amagasa (J. Inf. Process., 2022)

Performance improvement by enhancing spatial parallelism on FPGA for HPC applications. - Yuka Sano; Taisuke Boku; Mitsuhisa Sato; Miwako Tsuji; Norihisa Fujita; Ryohei Kobayashi 001 (CLUSTER Workshops, 2023)

Implementation and Performance Evaluation of Collective Communications Using CIRCUS on Multiple FPGAs. - Kohei Kikuchi; Norihisa Fujita; Ryohei Kobayashi 001; Taisuke Boku (HPC Asia Workshops, 2023)

GPU-FPGA-accelerated Radiative Transfer Simulation with Inter-FPGA Communication. - Ryohei Kobayashi 001; Norihisa Fujita; Yoshiki Yamaguchi; Taisuke Boku; Kohji Yoshikawa; Makito Abe; Masayuki Umemura (HPC Asia, 2023)

CHARM-SYCL: New Unified Programming Environment for Multiple Accelerator Types. - Norihisa Fujita; Beau Johnston; Ryohei Kobayashi 001; Keita Teranishi; Seyong Lee; Taisuke Boku; Jeffrey S. Vetter (SC Workshops, 2023)

OpenACC Unified Programming Environment for Multi-hybrid Acceleration with GPU and FPGA. - Taisuke Boku; Ryuta Tsunashima; Ryohei Kobayashi 001; Norihisa Fujita; Seyong Lee; Jeffrey S. Vetter; Hitoshi Murai; Masahiro Nakao; Miwako Tsuji; Mitsuhisa Sato (ISC Workshops, 2023)

Data Transfer API and its Performance Model for Rank-Level Approximate Computing on HPC Systems. - Yoshiyuki Morie; Yasutaka Wada; Ryohei Kobayashi 001; Ryuichi Sakamoto (Int. J. Netw. Comput., 2023)

Preliminary Performance Evaluation of Grace-Hopper GH200. - Toshihiro Hanawa; Kengo Nakajima; Yohei Miki 001; Takashi Shimokawabe; Kazuya Yamazaki; Shinji Sumimoto; Osamu Tatebe; Taisuke Boku; Daisuke Takahashi; Akira Nukada; Norihisa Fujita; Ryohei Kobayashi 001; et al. (CLUSTER Workshops, 2024)

Preliminary Evaluation of Kyokko for Inter-FPGA Communication Framework CIRCUS. - Kaito Kitazume; Norihisa Fujita; Ryohei Kobayashi 001; Taisuke Boku (CLUSTER Workshops, 2024)

Using SYCLomatic to Migrate CUDA Code to oneAPI Adapting NVIDIA GPU. - Wentao Liang; Norihisa Fujita; Ryohei Kobayashi 001; Taisuke Boku (CLUSTER Workshops, 2024)

CHARM-SYCL & IRIS: A Tool Chain for Performance Portability on Extremely Heterogeneous Systems. - Norihisa Fujita; Beau Johnston; Narasinga Rao Miniskar; Ryohei Kobayashi 001; Mohammad Alaul Haque Monil; Keita Teranishi; Seyong Lee; Jeffrey S. Vetter; Taisuke Boku (e-Science, 2024)

Using Intel oneAPI for Multi-hybrid Acceleration Programming with GPU and FPGA Coupling. - Wentao Liang; Norihisa Fujita; Ryohei Kobayashi 001; Taisuke Boku (HPC Asia Workshops, 2024)

Improving Performance on Replica-Exchange Molecular Dynamics Simulations by Optimizing GPU Core Utilization. - Taisuke Boku; Masatake Sugita; Ryohei Kobayashi 001; Shinnosuke Furuya; Takuya Fujie; Masahito Ohue; Yutaka Akiyama (ICPP, 2024)

Evaluation of Trade-Off Between Compression Ratio and Hardware Cost for Adaptive Bandwidth Compression Hardware Platform. - Tomohiro Ueno; Kaito Kitazume; Masato Kiyama; Kazutomo Yoshii; Kento Sato; Norihisa Fujita; Ryohei Kobayashi 001; Taisuke Boku; Kentaro Sano (COOL CHIPS, 2025)

Accelerating Deep Learning Inference with a Parallel FPGA System. - Takumi Suzuki; Ryohei Kobayashi 001; Norihisa Fujita; Taisuke Boku (HEART, 2025)

Accelerating General Relativistic Radiation Magnetohydrodynamic Simulations with GPUs. - Ryohei Kobayashi 001; Hiroyuki R. Takahashi; Akira Nukada; Yuta Asahina; Taisuke Boku; Ken Ohsuga (HPC Asia, 2025)