日本語

• Ph.D. Student at Satoshi Matsuoka Lab until March 2015
• Dept. of Mathematical and Computing Sciences
• Tokyo Institute of Technology



Koichi Shirahata received his Ph.D. in 2015 from Tokyo Institute of Technology, Tokyo, Japan, under supervision of Prof. Satoshi Matsuoka. He received his B.S. in 2010, and his M.S. with an emphasis in MapReduce and GPGPU in 2012, both from Tokyo Institute of Technology, Tokyo, Japan. His current research interest is large-scale data processing in supercomputers and clouds; such as MapReduce, GPGPU, graph processing, APGAS programming, and stream processing. He is particularly interested in utilizing accelerators and managing memory hierarchy for large-scale graph processing.

Research Interests

• Hierarchical data management for extremely large-scale graph processing on GPU-based Heterogeneous Clusters
• Accelerated MapReduce for next-gen supercomputers

Publications

Publication List

[Google Scholar]

Papers (International)

• Hideyuki Shamoto, Koichi Shirahata, Aleksandr Drozd, Hitoshi Sato, and Satoshi Matsuoka. "Large-scale Distributed Sorting for GPU-based Heterogeneous Supercomputers" In Proceedings of the IEEE BigData 2014, Washington DC, USA, October 2014. [DOI]
• Koichi Shirahata, Hitoshi Sato, and Satoshi Matsuoka. "Out-of-core GPU Memory Management for MapReduce-based Large-scale Graph Processing" In Proceedings of the IEEE Cluster 2014, Madrid, Spain, September 2014. [Slides] [Preprint] [DOI]
• Koichi Shirahata, Jun Doi, and Mikio Takeuchi. "Performance Analysis of Lattice QCD Application with APGAS Programming Model" The 2014 X10 Workshop (X10'14) co-located with PLDI'14, Edinburgh, UK, June 2014. [Slides] [Paper]
  • Download Source Code [X10 Lattice QCD - SourceForge]
• Hiroki Murata, Michihiro Horie, Koichi Shirahata, Jun Doi, Hideki Tai, Mikio Takeuchi, and Kiyokuni Kawachiya. "Porting MPI based HPC Applications to X10" The 2014 X10 Workshop (X10'14) co-located with PLDI'14, Edinburgh, UK, June 2014. [Slides] [Paper]
• Koichi Shirahata, Hitoshi Sato, Toyotaro Suzumura, and Satoshi Matsuoka. "A Scalable Implementation of a MapReduce-based Graph Processing Algorithm for Large-scale Heterogeneous Supercomputers" In Proceedings of the 13th IEEE/ACM International Symposium on Cluster, Cloud and Grid Computing (CCGrid 2013), Delft, Netherlands, May 2013. [Slides] [DOI]
  • Download Source Code [GraphGPU - GitHub]
• Koichi Shirahata, Hitoshi Sato, Toyotaro Suzumura, and Satoshi Matsuoka. "A GPU Implementation of Generalized Graph Processing Algorithm GIM-V" In Proceedings of the 3rd International Workshop on Parallel Algorithm and Parallel Software (IWPAPS 2012), Beijing, China, September 2012. [Slides] [DOI]

• Koichi Shirahata, Hitoshi Sato, and Satoshi Matsuoka. "Hybrid Map Task Scheduling for GPU-based Heterogeneous Clusters" In Proceedings of the 1st International Workshop on Theory and Practice of MapReduce (MAPRED' 2010), pp. 466-471, Indianapolis, USA, November 2010. [Slides] [DOI]
  • Download Source Code [hadoop-gpu - GitHub]
  • Demo [hadoop-gpu - Youtube]

Papers (Domestic)

• Zhang Chaojie, Koichi Shirahata, Shuji Suzuki, Yutaka Akiyama, and Satoshi Matsuoka. "Performance Analysis of MapReduce Implementations for High Performance Homology Search" In Proceedings of the HPCS 2015, Tokyo, Japan, May 2015.

Talks

• Koichi Shirahata, Jun Doi, and Mikio Takeuchi. "Performance Analysis of Lattice QCD in X10 CUDA" X10 Day Tokyo 2015, Tokyo, Japan, January 2015. [Slides]

Curriculum Vitae

Education

Mar. 2015,	Doctor of Science, Tokyo Institute of Technology (Supervisor: Prof. Satoshi Matsuoka).
Mar. 2012,	Master of Science, Tokyo Institute of Technology (Supervisor: Prof. Satoshi Matsuoka).
Mar. 2010,	Bachelor of Science, Tokyo Institute of Technology (Supervisor: Prof. Satoshi Matsuoka).

Working Experience

Aug. - Dec.	2013,	Research Intern at IBM Research - Tokyo.
Jun. - Aug.	2012,	Research Intern at Microsoft Research Redmond.
Aug.	2010,	Development Intern at IBM Japan.