Learning Computer Simulation with an MDGRAPE Accelerator

1
Learning Computer Simulation with an MDGRAPE
Accelerator

• Tetsu Narumi1, Fumikazu Konishi2,
• Ryo Umetsu2, Makoto Taiji2,
• Toshikazu Ebisuzaki3, Kenji Yasuoka1
• 1Department of Mechanical Engineering, Keio
  University
• 2Genomic Sciences Center, RIKEN
• 3Computational Astrophysics Lab., RIKEN

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Background

• Computer Simulation becomes important
• Fluid dynamics (Car, Airplane)
• Structural analysis (Building, Mobile phone)
• N-body simulation (Droplet of inkjet printer)
• Little experience on simulation at school
• Hands-on Simulation

3
N-body Simulation

• Astrophysical simulation
• Galaxy collision
• Cosmology
• Molecular dynamics simulation
• Bio sciences (protein folding)
• Nano sciences (carbon nano tube)
• Requires Huge Computational Power

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Tool for Simulation MDGRAPE

• Accelerator for N-body simulation
• Gravitational or molecular dynamics simulation
• Fast and good performance/cost
• Developed by University of Tokyo, RIKEN, NAOJ

Host Computer (PC)
Accelerator (MDGRAPE)
Newtons Equations of Motion, etc.
Positions
Force calculation
Forces
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MDGRAPE at Hand

• Expensive hardware
• Freely distributed by RIKEN
• Difficult to use
• All-in-one CDROM
• (Bootable, Device driver,
• Demos, Sources)

MDGRAPE-2 Board
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Demonstration

• Astrophysical simulation
• Galaxy collision
• Developed by Toshiyuki Takahei
• Molecular dynamics simulation
• NaCl
• Developed by Takahiro Koishi,
• Fukui Univ.
• OS Customized KNOPPIX
• CD bootable linux (http//www.knopper.net/)
• Customized by Ryo Umetsu, RIKEN GSC

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Summary

• Propose Hands-on Simulation
• Learning simulation at school is important
• Tools for N-body simulation are ready
• Free MDGRAPE-2 board
• All-in-one CDROM
• Need Help for Making Contents,
• Lecturing at School etc.