2012

  • Papers
    1. Akira Imakura, Tetsuya Sakurai, Kohsuke Sumiyoshi and Hideo Matsufuru, “A Parameter Optimization Technique for a Weighted Jacobi-Type Preconditioner”, JSIAM Letters, 4, 41-44, 2012
    2. Michihiro Naito, Hiroto Tadano and Tetsuya Sakurai, “A modified Block IDR(s) method for computing high accuracy solutions”, JSIAM Letters, 4, 25-28, 2012
    3. Akira Imakura, Ji-Rong Yang, Tomohiro Sogabe and Shao-Liang Zhang, “On Convergence Behavior of the GMRES(m) Method with the Deflation-Type Restart and the Look-Back-Type Restart”, Transactions of the Japan Society for Industrial and Applied Mathematics,Vol.22,No.3,pp. 117-141, 2012.(in Japanese)
    4. Tomohiro Sogabe, Takeo Hoshi, Shao-Liang Zhang and Takeo Fujiwara, “Solution of generalized shifted linear systems with complex symmetric matrices”, J. Comp. Phys, 231, 5669-5684, 2012, (DOI :10.1016/j.jcp.2012.04.046)
    5. A. Imakura,T. Sogabe,S.-L. Zhang,“A Look-Back GMRES(m) Method for Solving Nonsymmetric Linear Systems”,Transactions of the Japan Society for Industrial and Applied Mathematics,Vol.22,No.1,pp. 1-22, 2012.(in Japanese)
    6. A. Imakura, T. Sogabe and S.-L. Zhang, “An efficient variant of the GMRES(m) method based on the error equations”, East Asian Journal on Applied Mathematics, 2, 1, 19-32, 2012, (DOI: 10.4208/eajam.280611.030911a)
    7. Akiko Fukuda, Yusaku Yamamoto, Masashi Iwasaki, Emiko Ishiwata and Yoshimasa Nakamura, “Error analysis for matrix eigenvalue algorithm based on the discrete hungry Toda equation”, Numerical Algorithms, 61, 2, 243-260, 2012, (DOI: 10.1007/s11075-012-9606-6)
    8. Yusuke Hama, Akiko Fukuda, Yusaku Yamamoto, Masashi Iwasaki, Emiko Ishiwata and Yoshimasa Nakamura, “On Some Properties of Discrete Integrable System Derived from Hungry Lotka-Volterra System of Multiplicative Type”, Journal of Math-for-Industry, 4(A), 5-15, 2012
    9. Y. Hirota, T. Hashimoto, Y. Yamamoto, “Performance and Accuracy of Singular Value Decomposition of Square Matrices in Double Precision Arithmetic on GPGPU”, IPSJ Transactions on Advanced Computing Systems, 5, 5, 163-176, 2012
    10. Y. Hirota,Y. Yamamoto,Shao-Liang Zhang, “A Hybrid Approach to the Non-orthogonal Joint Diagonalization Problem”,Transactions of the Japan Society for Industrial and Applied Mathematics,Vol.22,No.2,pp.63-79, 2012.(in Japanese)
    11. Y. Nakamura, K.-I. Ishikawa, Y. Kuramashi, T. Sakurai and H. Tadano, “Modified block BiCGSTAB for lattice QCD”, Computer Physics Communications, 183, 1, 34-37, 2012
    12. S. Nishino, T. Fujiwara, H. Yamasaki, S. Yamamoto and T. Hoshi, “Electronic structure calculations and quantum molecular dynamics simulations of the ionic liquid PP13-TFSI”, Solid State Ionics 225, 22-25, 2012, (DOI :10.1016/j.ssi.2012.01.045)
    13. T. Hoshi, S. Yamamoto, T. Fujiwara, T. Sogabe and S.-L. Zhang, “An order-N electronic structure theory with generalized eigenvalue equations and its application to a ten-million-atom system”, J. Phys.: Condensed Matter., 24, 165502, 5, 2012
  • Proceedings
    1. Yasunori Futamura, Tetsuya Sakurai, Shinnosuke Furuya and Jun-Ichi Iwata, “Efficient Algorithm for Linear Systems Arising in Solutions of Eigenproblems and its Application to Electronic-Structure Calculations”, Proceedings of 10th International Meeting on High-Performance Computing for Computational Science (VECPAR 2012), LNCS 7851, 226-235, 2012
    2. Akira Imakura, Tetsuya Sakurai, Kohsuke Sumiyoshi and Hideo Matsufuru, “An Auto-Tuning Technique of the Weighed Jacobi-Type Iteration used for Preconditioners of Krylov Subspace Methods”, in: IEEE 6th International Symposium on Embedded Multicore SoCs (MCSoC-12), 183-190, 2012
    3. K. Yamamoto, Y. Maeda, Y. Futamura, T. Sakurai, “Adaptive Parallel Algorithm for Stochastic Estimation of Nonlinear Eigenvalue Density”, Proceeding of High Performance Computing Symposium 2012, 127-134, 2012
    4. Toshiyuki Imamura, Susumu Yamada and Masahiko Machida, “A High Performance SYMV Kernel on a Fermi-core GPU”, Proceedings of 10th International Meeting on High-Performance Computing for Computational Science (VECPAR 2012), LNCS 7851, 59-71, 2012
    5. Yusuke Takahashi, Yusuke Hirota and Yusaku Yamamoto, “Performance of the Block Jacobi Method for the Symmetric Eigenvalue Problem on a Modern Massively Parallel Computer”, Proceedings of ALGORITMY 2012, 151-160, 2012
  • Invited talks
    1. Akira Imakura, Tetsuya Sakurai, Kohsuke Sumiyoshi and Hideo Matsufuru, “A Parameter Tuning Technique of a Weighted Jacobi-Type Preconditioner and its Application to Supernova Simulations”, Symposium: `Quarks to Universe in Computational Science (QUCS 2012)’, Nara Prefectural New Public Hall, Japan, Dec. 13-16, 2012
    2. S.-L. Zhang, D. Lee, T. Miyata and T. Sogabe, “An intermediate eigenvalue problem in electronic structure calculation”, The 4th Workshop on Numerical Algebra and High Performance Computation, Macau, Dec. 8-10, 2012
    3. T. Hoshi, S. Yamamoto, T. Fujiwara, T. Sogabe, S-L. Zhang, Y. Akiyama and T. Ohno, “Ten-million-atom electronic structure calculations with novel linear-algebraic algorithm and the K computer”, International Symposium on Computics: Quantum Simulation and Design (ISC-QSD), Osaka University Hall, Osaka, Japan, Oct. 11-13, 2012
    4. T. Sogabe, T. Hoshi, S.-L. Zhang and T. Fujiwara, “Numerical methods for generalized shifted linear systems with complex symmetric matrices”, ?4th China-Japan-Korea Conference on Numerical Mathematics, Otsu, Japan, Aug. 26, 2012
    5. Y. Kuramashi, “Lattice QCD ? From Quarks to Nuclei ?”, 10th International Meeting on High-Performance Computing for Computational Science (VECPAR2012), Kobe, Japan, July 17-20, 2012
    6. Y. Kuramashi, “1+1+1 Flavor QCD+QED Simulation at the Physical Point”, Workshop on 「New Horizons for Lattice Computations with Chiral Fermions」, Brookhaven National Laboratory, New York, USA, May 14-18, 2012
    7. S.-L. Zhang, A. Imakura and T. Sogabe, “Look-Back GMRES(m) for solving large nonsymmetric linear system”, Numerical Linear Algebra —Algorithms, Applications, and Training, an NOW-JSPS joint seminar, Delft, Apr. 10-13, 2012
    8. T. Sogabe, T. Hoshi, S.-L. Zhang and T. Fujiwara, “Krylov subspace methods for solving generalized shifted linear systems”, International Workshop on Computational Science and Numerical Analysis, The University of Electro-Communications, Tokyo, Japan, March 24?26, 2012
    9. T. Hoshi, T. Sogabe, S. Yamamoto, S. Nishino, T. Fujiwara, S.-L. Zhang and Y. Yamamoto, “Novel linear-algebraic theories in large-scale electronic structure calculation and its application to nano-materials”, Dresden-Kobe Joint Workshop on Electronic Simulations for Nanosystems, Kobe University, Japan, March 7, 2012
  • Oral presentations
    1. Lei Du, Yasunori Futamura and Tetsuya Sakurai, “Conjugate gradient type methods for the approximation of block bilinear form CHA-1B”, The 4th International Conference on Numerical Algebra and Scientific Computing, Dalian University of Technology, Dalian, China, Oct. 20-24, 2012
    2. T. Sogabe, T. Hoshi, S.-L. Zhang and T. Fujiwara, “Numerical methods for generalized shifted linear systems with complex symmetric matrices”, International Symposium on Computics: Quantum Simulation and Design (ISC-QSD), Osaka University Hall, Osaka, Japan, Oct. 11, 2012
    3. Dongjin Lee, Takafumi Miyata,Tomohiro Sogabe,Takeo Hoshi, Shao-Liang Zhang, “On intermediate eigenvalue problems in computational materials science”, 4th China-Japan-Korea Conference on Numerical Mathematics, Otsu City, Shiga Prefecture, Japan, Aug. 2012
    4. Yasunori Futamura, Tetsuya Sakurai, Shinnosuke Furuya and Jun-Ichi Iwata, “Efficient Algorithm for Linear Systems Arising in Solutions of Eigenproblems and its Application to Electronic-Structure Calculations”, 10th International Meeting on High-Performance Computing for Computational Science, Kobe, Japan, July 20, 2012
    5. Toshiyuki Imamura, Susumu Yamada and Masahiko Machida, “A High Performance SYMV Kernel on a Fermi-core GPU”, 10th International Meeting on High-Performance Computing for Computational Science (VECPAR 2012), Kobe, Japan, July 2012
    6. Yasunori Futamura, Tetsuya Sakurai, Shinnosuke Furuya and Jun-Ichi Iwata, “Efficient algorithm for solving linear systems arising from a sparse eigensolver”, 7th International Workshop on Parallel Matrix Algorithms and Applications, Birkbeck University of London, UK, Jun. 30, 2012
    7. Yasuyuki Maeda, Yasunori Futamura and Tetsuya Sakurai, “Effective resource utilization for a contour integral based parallel eigensolver”, 7th International Workshop on Parallel Matrix Algorithms and Applications, Birkbeck University of London, UK, Jun. 29, 2012
    8. Yusuke Hirota and Yamamoto Yamamoto, “An Acceleration of Backward Transformation of Singular Vectors on a CPU and GPU Heterogeneous Environment”, Parallel Matrix Algorithms and Applications 2012, Birkbeck University of London, London, UK, June 28-30, 2012
    9. Lei Du, Tetsuya Sakurai, Hiroto Tadano and Michihiro Naito, “IDR(s) for linear systems with multiple shifts and multiple right-hand sides”, The 8th East Asia SIAM Conference, National Taiwan University, Taipei, Taiwan, Jun. 25-27, 2012
    10. Kazuma Yamamoto, Yasuyuki Maeda, Yasunori Futamura and Tetsuya Sakurai, “A scalable parallel method for large scale nonlinear eigenvalue problems”, SIAM Conference on Applied Linear Algebra, Universidad Politecnica de Valencia, Valencia, Spain, Jun. 20, 2012
    11. Dongjin Lee, Takafumi Miyata,Tomohiro Sogabe,Takeo Hoshi, Shao-Liang Zhang, “Eigenvalue Computation for a Specific Need Arising from Electronic Structure Calculation”, The 8th East Asia SIAM Conference (EASIAM 2012), National Taiwan University, Taipei,Taiwan, Jun. 2012
    12. Akira IMAKURA, Tomohiro SOGABE and Shao-Liang ZHANG, “On Convergence Behavior of the GMRES(m) Method with a Hybrid Restart Technique”, The 8th East Asia SIAM Conference (EASIAM 2012), National Taiwan University, Taipei,Taiwan, Jun. 2012
    13. T. Miyata,T. Sogabe,S.-L. Zhang, “Jacobi-Davidson Type Methods Using a Shift Invariance Property of Krylov Subspaces for Eigenvalue Problems”, SIAM Conference on Applied Linear Algebra, Valencia,Spain, Jun.2012
    14. Toshiyuki Imamura, Susumu Yamada and Masahiko Machida, “Eigen-K: high performance eigenvalue solver for symmetric matrices developed for K computer”, 7th International Workshop on. Parallel Matrix Algorithms and Applications (PMAA2012), London, UK, Jun. 2012
    15. T. Imamura, “High-performance eigensolver on K-computer system”, International Workshop on Computational Science and Numerical Analysis, The University of Electro-Communications, Tokyo, Japan, March 26, 2012
    16. T. Sogabe, T. Hoshi, S.-L. Zhang and T. Fujiwara, “Krylov subspace methods for solving generalized shifted linear systems”, ?International WorkShop on Computational Science and Numerical Analysis, The University of Electro-Communications, Japan, Mar. 24, 2012
    17. T. Sakurai, H. Tadano, Y. Futamura, “z-Pares: A complex moment based parallel sparse eigenvalue solver package”, International Workshop on Computational Science and Numerical Analysis, The University of Electro-Communications, Japan, March 25, 2012
    18. T. Imamura, “ASPEN-K2: Automatic-tuning and Stabilization for the Performance of CUDA BLAS Level 2 Kernels”, SIAM Conference on Parallel Processing for Scientific Computing, Hyatt Regency Savannah, Savannah, USA, Feb. 15, 2012
    19. S. Yamada, T. Imamura, M. Machida, “Dynamical Variation of Eigenvalue Problems in Density-Matrix Renormalization-Group Code abstract”, SIAM Conference on Parallel Processing for Scientific Computing, Hyatt Regency Savannah, Savannah, USA, Feb. 15, 2012
    20. Y. Hirota, Y. Yamamoto, S.-L. Zhang, “Cache optimization of a non-orthogonal joint diagonalization method”, SIAM Conference on Parallel Processing 2012, Hyatt Regency Savannah, Savannah, USA, Feb. 15-17, 2012
  • Poster presentations
    1. Y. Maeda, Y. Futamura, T. Sakurai, “Stochastic Estimation Method of Eigenvalue Density for Nonlinear Eigenvalue Problems on the Complex Plane”, SIAM Conference on Parallel Processing for Scientific Computing, Hyatt Regency Savannah, Savannah, USA, Feb. 15, 2012
    2. K. Yamamoto, T. Sakurai, “Scalable Parallel Software for Large-Scale Nonlinear Eigenvalue Problems on Petsc/Trilinos”, SIAM Conference on Parallel Processing for Scientific Computing, Hyatt Regency Savannah, Savannah, USA, Feb. 15, 2012
    3. M. Naito, H. Tadano, T. Sakurai, “A Modified Block IDR(s) Method for Computing High Accuracy Solutions”, SIAM Conference on Parallel Processing for Scientific Computing, Hyatt Regency Savannah, Savannah, USA, Feb. 15, 2012
    4. Y. Futamura, T. Sakurai, S. Furuya, J. Iwata, “Efficient Algorithm for Linear Systems Arising in Solutions of Eigenproblems and Its Application to Electronic-Structure Calculations”, SIAM Conference on Parallel Processing for Scientific Computing, Hyatt Regency Savannah, Savannah, USA, Feb. 15, 2012
    5. Y. Nakamura, “Modified Block BiCGSTAB for Lattice QCD”, 2nd AICS International Symposium, RIKEN Advanced Institute for Computational Science, Kobe, Japan, March 1-2, 2012
    6. T. Miyata and S.-L. Zhang, “A Numerical Method for Eigenvalue Problems in the Application of Photonic Crystals”, International Symposium on Computics: Quantum Simulation and Design (ISC-QSD), Osaka University Hall, Japan, Oct. 11, 2012
    7. Toshiyuki Imamura, Susumu Yamada, Masahiko Machida, “Preliminary Report for a High Precision Distributed Memory Parallel Eigenvalue Solver”, The International Conference for High Performance Computing, Networking, Storage and Analysis (SC12), Salt Lake City, US, Nov. 10-16, 2012