Talk slides

List of talks in Japanese

• OpenMP performance of FDPS PDF, Internal Seminar, 2022/7/13
• Fast parallel sort on A64fx PDF, Toward a unified view of the universe: from large scale structures to planets internal workshop 2022/6/28
• Fast parallel sort on x86 and A64fx PDF, Internal Seminar, 2022/5/25
• Quicksort using SIMD instructions PDF, Internal Seminar, 2022/3/9
• Current status of the project "Toward a unified view of the universe: from large scale structures to planets" PDF, 4th R-CCS International Symposium
• Debugging the performance problems of FDPS on Fugaku Supercomputer PDF, Internal Seminar, 2021/9/22
• Recent development of FDPS PDF, 215th R-CCS Cafe, 2021/9/6
• A (somewhat) faster tree traversal algorithm for finding neighbors PDF, Internal seminar
• ACS2: A "yet another" toolbox for stellar dynamics PDF, Internal seminar
• Frameworks for large-scale astrophysical simulationsA PDF, ITC Colloquium, Oct 15, 2020
• ASURA/FDPS --- Simulation of Galaxy Formation on the supercomputer PDF, R-CCS Cafe, Sept. 7, 2020
• (Simplified) Mathematics of Coronavirus (SARS-CoV-2)
• Formura -- PDF, Group seminar, June 17, 2020
• (Simplified) Mathematics of Coronavirus (SARS-CoV-2) PDF, Group seminar, Mar 26, 2020
• Current status of FDPS and Future plans PDF, The 2nd R-CCS International Symposium Feb 17-18 16, 2020, Kobe, Japan
• Applications of MN-Core Deep-Learning processor to large-scale astronomical simulations PDF, CHALLENGES AND INNOVATIONS IN COMPUTATIONAL ASTROPHYSICS Sept 16, 2019, St. Petersburg, Russia
• Current status of FDPS/ Processor design from HPC perspective PDF, R-CCS Cafe , Sep 2, 2019, Kobe, Japan
• Japanese HPC processor projectsPDF, 8th China Computer Federation Taihu Symposium. Jun. 22, 2019, Wuxi, China
• What can/should we measure with benchmarks? PDF, SC18 BoF 107 -- Pros and Cons of HPCx benchmarks , Nov 13, 2018, Dallas, USA
• Toward a Science of HPC software (and hardware) PDF, R-CCS Cafe , Oct 10, 2018, Kobe, Japan
• FDPS: Framework for Developing Particle Simulator PDF, International Symposium New Horizons of Computational Science with Heterogeneous Many-Core Processors , Feb 27-28, 2018, Wako, Japan
• Performance of FDPS on Sunway TaihuLight and Other Modern HPC Systems PDF, SIAM PP18, Mar 7-10, 2018, Waseda, Tokyo, Japan
• The Streamline Computer --- or a science of computer architecture special-purpose supercomputers) PDF, 2nd International Symposium on Research and Education of Computational Science (RECS), Dec 19, Tokyo, Japan
• N-body simulations (on general- and special-purpose supercomputers) PDF, internal workshop, Nov 24-26, AMNH, NY, USA.
• FDPS: Framework for Developing Particle Simulator PDF, Numerical Integration Methods in Planetary Science, August 13-16, 2017, University of Toronto at Scarborough
• New Frontier applications and future HPC architectures PDF, Internal workshop, Akihabara, Feb 24-25, 2016
• Frameworks for Large-scale parallel simulations PDF The 6th AICS International Symposium, Kobe, Feb 22-23, 2016
• N-body simulation on general- and special-purpose supercomputers PDF MODEST-15s, Kobe, Dec 7-11, 2015
• First Generation Objects PDF Symposium on Quarks to Universe in Computational Science (QUCS 2015), Nara, Nov 4(4-8), 2015
• How to make ``ideal'' thin disk of particles PDF Group seminar, Kobe, Sept 16, 2015
• To SIMD or not to SIMD, or how to SIMD? PDF Group seminar, Kobe, May 27, 2015
• Where are we now, and where to go? PDF ISP2S2, Kobe, Dec 4, 2014
• Resent developments of particle-based methods for CFD, or can we get out of the morass? PDF Seminar at Hokkaido Univ. Oct 30, 2014
• HPC in Japan --- Past, Present, and Future. PDF Conference on Comparing High Performance Computing in the U.S. and China- April 29 & 30, 2014 - La Jolla, CA
• Exascale computers ?/Can we believe SPH simulations of Giant Impact? PDF Science as Method and Methodology for Problems on the Earth and Life
• Exascale computers in --- 2019? PDF Large-Scale simulation of Formation and Evolution of Planetary Systems: Kobe 2013 Summer Workshop, Aug 7-8, 2013, Kobe, Japan
• Galactic environment --- The possibility of Galactic Paleoclimatology PDF The 1st ELSI International Symposium, Mar 29, 2013, Tokyo, Japan
• Particle-based simulations in Astrophysics PDF 3rd AICS International Symposium, Feb 28, 2013, Kobe, Japan
• GRAPE-8 --- An Accelerator for Gravitational $N$-body Simulation with 20.5Gflops/W Performance PDF SC12, Nov 15, 2012, Salt Lake City, UT, USA
• Large-scale simulations with particles --- From self-gravitating systems to continuum mechanics PDF AICS Cafe, 31 Aug 2012, Kobe, Japan
• National Supercomputer Projects in Japan PDF New Mathematical Techniques for High Performance Computing16 Jan 2012, Tokyo
• Galaxy Formation and Evolution PDF 6th Symposium on the Science by Astronomical Earth Observatory 31 Oct-2 Nov 2011, Tokyo
• Accelerated Computing PDF Cluster 2011Sept 26-29 2011, Austin, TX, USA
• Parallel programming in the last 25 years --- forward or backward? PDF MODEST-10d: High-Level Languages for Hugely Parallel Astrophysics Simulations: Dialogues between Computer Scientists and (Astro)physicists 23-24 August 2011, Kobe
• The performance of GRAPE-DR for dense matrix operations PDF ICCS2011 1-3 June 2011, Singapore
• GRAPE-DR, GRAPE-8, and ... PDF CPS mini-workshop, 14 Dec 2010, Kobe, Japan
• GRAPE and GRAPE-DR PDF MODEST-10 30 Aug-3 Sep 2010, Beijing, China
• Galaxies, Dark halos, and microhalos PDF JKYAM10 26 Aug 2010, Miura, Japan
• GRAPE and GRAPE-DR PDF GPU Solutions to Multiscale Problems in Science and Engineering Workshop 27-29 Jul 2010, Harbin, China
• GRAPE-accelerators PDF IAU 270 Computational Star Formation 3 Jun 2010, Barcelona, Spain
• GRAPE-DR and Next-Generation GRAPE PDF Accelerated Computing 28 Jan 2010, Roppongi, Tokyo, Japan
• GRAPE-DR and Next-Generation GRAPE PDF Accelerator-based Computing and Manycore Manycore and Accelerator-based Computing for Physics and Astronomy Applications2 Dec 2009, Menlo Park, CA, USA
• Gamma-rays from Earth-Size dark-matter halos PDF Seminar at Ebisuzaki Lab, RIKEN 20 Nov 2009, Wako, Japan
• Cosmogrid Project PDF GLIF 2009 27 Oct 2009, Daejeon, Korea
• Stellar Dynamics of Massive Blackhole Binaries PDF Workshop on Massive Black Hole Binaries and Their Coalescence in Galactic Nuclei 21 Jul 2009, Beijing, China
• Scientific Computing on Special-Purpose Computers PDF Lecure Advanced Mathematical Sciences --- Modeling and Simulation of Complex Systems 19 Feb 2009, Ikuta Campus, Meiji Univ.
• Numerical Simulation of Galaxy Formation PDF From Genome to Snowball Earth 3 Oct 2008, Odaina
• GRAPE-DR: An accelerator for scientific computing PDF HAC2008 1 Oct 2008, Tsukuba
• Do-it-yourself Computational Astronomy --- Hardwares, Algorithms, Softwares, and Sciences, PDF The third Takagi Lectures 23 Nov 2007, Komaba, Tokyo
• GRAPE-DR 2-Pflops massively-parallel computer with 512-core, 512-Gflops processor chips for scientific computing PDF SC07 10-17 November 2007, Reno, NV, USA
• GRAPE-DR PDF ASTROGPU 9-10 November 2007, Princeton, NJ, USA
• Gravitational Many-Body Problem PDF International Symposium on New Facet of Three Nucleon Force 29-31 October 2007, Tokyo-Japan
• Current status of GRAPE Project PDF Dynamical Evolution of Dense Stellar Systems International Astronomical Union Symposium 246 5-9 September 2007, Capri-Italy
• Evolution of Multiple Blackhole Systems in Galactic Centers PDF N-body dynamics in near-Keplerian potentials from 29 May 2007 through 1 Jun 2007, Leiden, The Netherlands
• Virtual Galaxies PDF 1st JFFoS Jan 29, 2007
• Special-Purpose Computing for Dense Stellar Systems PDF IAU GA JD14 August 22, 2006
• Next generation GRAPE: GRAPE-DR PDF IAU GA JD6 August 17, 2006
• Evolution of SMBH-SMBH and SMBH-IMBH Binaries: Effect of Large Mass Ratio PDF PASB, Santa Fe, July 11, 2006
• GRAPE-DR and its programming environment PDF MODEST 6x, Amsterdam, March 28, 2006
• Symmetric Individual Timestep PDF MODEST 6x, Amsterdam, March 28, 2006
• Japanese Supercomputer Project PDF Supercomputer for Science across the Atlantic, May 18, 2005
• Current Status of GRAPE Project PDF at IPAM meeting Apr 21, 2005
• GRAPE-DR --- Next-Generation GRAPE Project GIF/ PDF at EANAM Dec 1, 2004
• GRAPE and Project Milkyway GIF/ PDF at EAMA6 Oct 19, 2004
• Performance evaluation and tuning of GRAPE-6 --- towards 40 ``real'' Tflops GIF/ PS at SC2003 Nov 19, 2003
• A merger scenario for the formation of supermassive blackholes\\ --- from supermassive stars to supermassive black holes BH2003 (2003/10/30) GIF images PS File
• N-Body Dynamical Modeling of Globular Clusters, Globular Clusters and Gravitational Waves (2003/10/17) GIF images PS File
• Black Hole binary (mergers), IAU GA 25 JD11 (2003/7/18) GIF images PS File
• GRAPE-6 and Beyond MODEST-3 (2003/7/9) GIF images PS File
• Stellar Dynamical formation scenario for IMBH and its ``observational support'' --- 6th Capra meeting (2003/6/20) GIF images PS File
• A 29.5 Tflops simulation of planetesimals in Uranus-Neptune region on GRAPE-6 GIF
• Black holes in star clusters? --- M82 and M15. (seminar talk at IoA, Cambridge, 2002/10/9) GIF
• N-body simulations with GRAPE (IAU APRM, 2002/7/5) GIF
• Are intermediate-mass Black Holes really the "Missing links" between stellar and supermassive black holes? --- A view from stellar dynamicist. (invited talk at JGRG 11, 2002/1/9) GIF
• A ``Unified View'' of Massive, intermediate-mass and small Black Holes (talk at NAO Dec 5, 2001) GIF
• A 11.55 Tflops simulation of black holes in a galactic center on GRAPE-6 (talk at SC2001 )GIF
• The GRAPE project: Current Status and Future Outlook (talk at IAU Symposium 208 )GIF/ gzipped PS
• A 1.349 Tflops simulation of black holes in a galactic center on GRAPE-6 (talk at SC2000 )GIF/ gzipped PS
• GRAPE Project: special-purpose computers for many-body simulations (talk at Symposium on Formal Methods for HW/SW design for Grand Challenge Scientific Applications )GIF/ gzipped PS
• N-body simulations on GRAPE-6 (talk at Stellar Collisions)GIF/ gzipped PS
• Direct Simulation of Dense Stellar Systems with GRAPE-6 (talk at STAR2000)GIF/ gzipped PS
• Statistical Demagnification of Hi-Z Object due to Weak Lensing (Poster at Gravitational Lensing: Recent Progress and Future Goals)GIF/ gzipped PS
• Formation and Structure of Luminous Ellipticals \\ with Central Massive Black Holes (July 1 1999, Galaxy Seminar at Hongo)GIF/ gzipped PS
• Numerical Astrophyics by GRAPE (May 11 1999, Seminar at Hongo)GIF/ gzipped PS
• Relaxation, Ergodicity and the one-dimensional sheet model (Apr 8 1999, Seminar at Komaba)GIF/ gzipped PS
• GRAPE users Workshop(Jan 28, 1999) gzipped PS (137KB) / GIF images
  
• Yet Anoter Fast Multipole Method Without Multipoles (July 2, 1998, at Komaba, in Japanese )GIF images gzipped PS
• Hierarchical Structures in Dark Haloes of Clusters of Galaxies? (May 23, 1998, at Rikkyo Univ, in Japanese)GIF images gzipped PS HTML