[English/
Japanese]
Hiroyuki ISHIGAMI
Affiliation
- Ph.D Candidate at Department of Applied Mathematics and Physics,
Graduate School of Informatics, Kyoto University, Kyoto 606-8501, Japan
- Research Fellow of the Japan Society for the Promotion of Science (DC1)
- TEL: +81-75-753-5511 (FAX: -5497)
- E-mail: hishigami at amp.i.kyoto-u.ac.jp
- Address:
Applied Mathematical Analysis Laboratory, Department of Applied Mathematics and Physics,
Graduate School of Informatics, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan
Curriculum Viate
- Apr. 2013 – present: Research Fellow of the Japan Society for the Promotion of Science (DC1)
- Apr. 2013 – present: Ph.D Program Student at Department of Applied Mathematics and Physics, Graduate School of Informatics, Kyoto University
- Apr. 2011 – Mar. 2013: Master Program Student at Department of Applied Mathematics and Physics, Graduate School of Informatics, Kyoto University
- Apr. 2007 – Mar. 2011: Student at Undergraduate School of Informatics and Mathematical Science, Kyoto University
Reserch Interests
- Algorithm for singular value decomposition and eigenvalue decomposition
Papers (Reviewed)
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Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
On Implementation and Evaluation of Inverse Iteration Algorithm with compact WY Orthogonalization,
IPSJ Transactions on Mathematical Modeling and Its Applications, Vol. 6, No. 2, pp. 25--35, 2013.
(DOI: 10.2197/ipsjtrans.6.85)
Proceedings (Reviewed)
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Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
A New Parallel Symmetric Tridiagonal Eigensolver Based on Bisection and Inverse Iteration Algorithms for Shared-memory Multi-core Processors,
Proceedings of Tenth International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC 2015), pp. 216--223, IEEE, 2015.
(DOI:10.1109/3PGCIC.2015.26)
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Masami Takata, Hiroyuki Ishigami, Kinji Kimura, Yuki Fujii, Hiroki Tanaka, Yoshimasa Nakamura,
Performance Evaluation of Golub-Kahan-Lanczos Algorithm with Reorthogonalization by Classical Gram-Schmidt Algorithm and OpenMP,
Proceedings of 2015 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2015), Vol. II, pp. 243--249, 2015.
[pdf]
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Kinji Kimura, Takuto Akiyama, Hiroyuki Ishigami, Masami Takata, Yoshimasa Nakamura,
Accelerating the Numerical Computation of Positive Roots of Polynomials Using Improved Bounds,
Proceedings of 2014 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2014), Vol. II, pp. 201--207, 2014.
[pdf]
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Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
GPU Implementation of Inverse Iteration Algorithm for Computing Eigenvectors,
Proceedings of 2014 22nd Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP 2014), pp. 664-671, IEEE, 2014.
(DOI:10.1109/PDP.2014.39)
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Hiroki Toyokawa, Hiroyuki Ishigami, Kinji Kimura, Masami Takata, Yoshimasa Nakamura,
Accelerating the Reorthogonalization on Singular Vectors with a Multi-Core Processor,
High Performance Computing for Computational Science - VECPAR 2012, Lecture Notes in Computer Science, Vol. 7851, pp. 379-390, Springer Berlin / Heidelberg, 2013.
(DOI:10.1007/978-3-642-38718-0_35)
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Masami Takata, Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
Performance Evaluation of Some Inverse Iteration Algorithms on PowerXCellTM 8i Processor,
Proceedings of 2012 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2012), Vol. II, pp. 711--717, 2012. [pdf]
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Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
Implementation and Performance Evaluation of New Inverse Iteration Algorithm with Householder Transformation in Terms of the Compact WY Representation,
Proceedings of 2011 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2011), Vol. II, pp. 775--780, 2011. [pdf]
Conferences and Talks
- ○Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
A New Parallel Symmetric Tridiagonal Eigensolver Based on Bisection and Inverse Iteration Algorithms for Shared-memory Multi-core Processors,
10th International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC 2015), Krakow, Poland, Nov. 4, 2015.
- ○Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
[Invited Talk] Bisection and Inverse Iteration Algorithms for Computing Eigenpair Subsets of Symmetric Band Matrices,
EPASA2015: International Workshop on Eigenvalue Problems: Algorithms; Software and Applications, in Petascale Computingr Network Algorithms in Materials Science,
Tsukuba, Japan, Sep. 15, 2015.
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○Masami Takata, Hiroyuki Ishigami, Kinji Kimura, Yuki Fujii, Hiroki Tanaka, Yoshimasa Nakamura,
Performance Evaluation of Golub-Kahan-Lanczos Algorithm with Reorthogonalization by Classical Gram-Schmidt Algorithm and OpenMP,
the 2015 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2015),
Las Vegas, USA, Jul. 27, 2015.
- ○Hiroyuki Ishigami,
[Invited Talk] Development of parallel SVD solver for large-scale sparse matrix,
CMSI International Workshop 2014: Tensor Network Algorithms in Materials Science,
Kobe, Japan, Oct. 21, 2014.
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○Kinji Kimura, Takuto Akiyama, Hiroyuki Ishigami, Masami Takata, Yoshimasa Nakamura,
Accelerating the Numerical Computation of Positive Roots of Polynomials Using Improved Bounds,
the 2014 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2014),
Las Vegas, USA, Jul. 21, 2014.
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○Yuki Fujii, Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
Speed-up of reorthogonalized block Golub-Kahan-Lanczos algorithm for preprocessing,
8th International Workshop on Parallel Matrix Algorithms and Applications (PMAA14),
Lugano, Switzerland, Jul. 3, 2014.
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○Hiroki Tanaka, Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
Implementation of the orthogonal QD-algorithm for performing singular value decomposition with high accuracy,
8th International Workshop on Parallel Matrix Algorithms and Applications (PMAA14),
Lugano, Switzerland, Jul. 3, 2014.
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○Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
GPU Implementation of Inverse Iteration Algorithm for Computing Eigenvectors,
2014 22nd Euromicro International Conference on Parallel, Distributed and network-based Processing (PDP 2014), Turin, Italy, Feb. 12, 2014.
- ○Hiroyuki Ishigami,
Acceleration of Reorthogonalization Process in Inverse Iteration on Heterogeneous environments (Poster),
China-Japan Joint Workshop on Integrable Systems, Kyoto, Japan, Mar. 18-19, 2013.
- ○Hiroyuki Ishigami,
Acceleration of Incremental Orthogonalization in Inverse Iteration on Heterogeneous Computers,
Workshop on GPGPU/High-Accurate Computation, Arima, Japan, Sep. 2, 2012.
- ○Hiroki Toyokawa, Hiroyuki Ishigami, Kinji Kimura, Masami Takata, Yoshimasa Nakamura,
Accelerating the Reorthogonalization on Singular Vectors with a Multi-Core Processor,
The Seventh International Workshop on Automatic Performance Tuning (iWAPT2012) in VECPAR 2012 Conference, Kobe, Japan, Jul. 17, 2012.
- ○Masami Takata, Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
Performance Evaluation of Some Inverse Iteration Algorithms on PowerXCellTM 8i Processor,
the 2012 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2012), Las Vegas, USA, Jul. 16，2012.
- ○Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
Accelerating orthogonalization process of inverse iteration on multi-core CPU and GPGPU environment,
7th International Workshop on Parallel Matrix Algorithms and Applications (PMAA12), London, UK, Jun. 29, 2012.
- ○Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
Implementation and performance evaluation of inverse iteration with new reorthogonalization algorithm,
Int. Workshop on application of iterative methods to engineering and its mathematical element, Kyoto, Japan, Oct. 23, 2011.
- ○Hiroyuki Ishigami, Kinji Kimura, Yoshimasa Nakamura,
Implementation and Performance Evaluation of New Inverse Iteration Algorithm with Householder Transformation in Terms of the Compact WY Representation,
The 2011 International Conference on Parallel and Distributed Processing Techniques and Applications (PDPTA2011), Las Vegas, USA, Jul. 18, 2011.
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