prize, we report an astrophysical N-body simulation performed with reconfigurable computing systems and a hierarchical tree algorithm. Each of our systems consists of a host PC and a reconfigurable...
Naoki Takada, Noriyuki Futatsugi, Atsushi Suenaga, Tetsu Narumi, Noriaki Okimoto, ...
Introduction Molecular dynamics (MD) simulation is a very useful technique for studying the structure and dynamics of biologically important molecules such as proteins and DNA/RNA. In MD simulations,...
Integrated field spectroscopy of E+A (post-starburst) galaxies with the Kyoto3DII (2008)
Goto, Tomotsugu, Kawai, Atsushi, Shimono, Atsushi, Sugai, Hajime, Yagi, Masafumi, Hattori, Takashi
We have performed a two-dimensional spectroscopy of three nearby E+A (post-starburst) galaxies with the Kyoto3DII integral field spectrograph. In all the cases, Hdelta absorption is stronger at the...
$7.0/Mflops Astrophysical N-Body Simulation with Treecode on GRAPE-5 (2007)
Atsushi Kawai, Toshiyuki Fukushige, Junichiro Makino
As an entry for the 1999 Gordon Bell price/performance prize, we report an astrophysical N-body simulation performed with a treecode on GRAPE-5 (Gravity Pipe 5) system, a special-purpose computer for...
Atsushi Kawai, Junichiro Makino
In this letter we describe the pseudoparticle multipole method (P 2
Atsushi Kawai, Toshiyuki Fukushige, Makoto Taiji, Junichiro Makino, Daiichiro Sugimoto
We developed a PCI interface for GRAPE systems. GRAPE(GRAvity piPE) is a special-purpose computer for gravitational N-body simulations. A GRAPE system consists of GRAPE processor boards and a host...
GRAPE-6A: A single-card GRAPE-6 for parallel PC-GRAPE cluster system (2005)
Fukushige, Toshiyuki, Makino, Junichiro, Kawai, Atsushi
In this paper, we describe the design and performance of GRAPE-6A, a special-purpose computer for gravitational many-body simulations. It was designed to be used with a PC cluster, in which each node...
Fukushige, Toshiyuki, Kawai, Atsushi, Makino, Junichiro
We investigate the structure of the dark matter halo formed in the cold dark matter scenarios by N-body simulations with parallel treecode on GRAPE cluster systems. We simulated 8 halos with the mass...
An 8.61 Tflop/s Molecular Dynamics Simulation for NaCl with a Special-Purpose Computer (2001)
Tetsu Narumi, Atsushi Kawai, Takahiro Koishi, High Performance, Biocomputing Team
We performed molecular dynamics (MD) simulation of 33 million pairs of NaCl ions with the Ewald summation and obtained a calculation speed of 8.61 Tflop/s. In this calculation we used a...
Pseudoparticle Multipole Method: A Simple Method to Implement High-Accuracy Treecode (2000)
Kawai, Atsushi, Makino, Junichiro
In this letter we describe the pseudoparticle multipole method (P2M2), a new method to express multipole expansion by a distribution of pseudoparticles. We can use this distribution of particles to...
GRAPE-5: A Special-Purpose Computer for N-body Simulation (1999)
Kawai, Atsushi, Fukushige, Toshiyuki, Makino, Junichiro, Taiji, Makoto
We have developed a special-purpose computer for gravitational many-body simulations, GRAPE-5. GRAPE-5 is the successor of GRAPE-3. Both consist of eight custom pipeline chips (G5 chip and GRAPE...
PROGRAPE-1: A Programmable, Multi-Purpose Computer for Many-Body Simulations (1999)
Hamada, Tsuyoshi, Fukushige, Toshiyuki, Kawai, Atsushi, Makino, Junichiro
We have developed PROGRAPE-1 (PROgrammable GRAPE-1), a programmable multi-purpose computer for many-body simulations. The main difference between PROGRAPE-1 and "traditional" GRAPE systems is that...
7.0/Mflops Astrophysical N-Body Simulation with Treecode on GRAPE-5 (1999)
Kawai, Atsushi, Fukushige, Toshiyuki, Makino, Junichiro
As an entry for the 1999 Gordon Bell price/performance prize, we report an astrophysical N-body simulation performed with a treecode on GRAPE-5 (Gravity Pipe 5) system, a special-purpose computer for...
A Simple Formulation of the Fast Multipole Method: Pseudo-Particle Multipole Method (1998)
Kawai, Atsushi, Makino, Junichiro
We present the pseudo-particle multipole method (P2M2), a new method to handle multipole expansion in fast multipole method and treecode. This method uses a small number of pseudo-particles to...
Fujiwara, Tsutomu, Kawai, Atsushi, Shimizu, Fumio, Hirano, Hisanobu, Okuno, Shiro, Takeda, Satoshi, ...
A cDNA encoding the 14-kDa subunit of vacuolar ATPase was cloned from human fetal brain. The sequence was composed of 680 nucleotides containing an open reading frame of 357 nucleotides. The deduced...
A new approximate swaption formula in the LIBOR market model: an asymptotic expansion approach
This paper presents a new approximate pricing formula for European payer swaptions in the LIBOR market model using an asymptotic expansion method. The formula is very flexible, since it can be...