Performance evaluation and tuning of GRAPE-6 - towards 40 "real" Tflops

Authors:
Junichiro Makino;Eiichiro Kokubo;Toshiyuki Fukushige
Affiliations:
University of Tokyo, Japan;National Astronomical Observatory of Japan, Tokyo;University of Tokyo, Japan
Venue:
Proceedings of the 2003 ACM/IEEE conference on Supercomputing
Year:
2003

Citing 5
Cited 6

A fast algorithm for particle simulations

Journal of Computational Physics
Astrophysical N-body simulations on GRAPE-4 special-purpose computer

Supercomputing '95 Proceedings of the 1995 ACM/IEEE conference on Supercomputing
Scientific Simulations with Special Purpose Computers: The Grade Systems

Scientific Simulations with Special Purpose Computers: The Grade Systems
A 29.5 Tflops simulation of planetesimals in Uranus-Neptune region on GRAPE-6

Proceedings of the 2002 ACM/IEEE conference on Supercomputing
Systolic and hyper-systolic algorithms for the gravitational N-body problem, with an application to Brownian motion

Journal of Computational Physics

Towards an RCC-based accelerator for computational fluid dynamics applications

The Journal of Supercomputing
Simulating N-Body Systems on the Grid Using Dedicated Hardware

ICCS '08 Proceedings of the 8th international conference on Computational Science, Part I
42 TFlops hierarchical N-body simulations on GPUs with applications in both astrophysics and turbulence

Proceedings of the Conference on High Performance Computing Networking, Storage and Analysis
190 TFlops Astrophysical N-body Simulation on a Cluster of GPUs

Proceedings of the 2010 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis
Scaling Hierarchical N-body Simulations on GPU Clusters

Proceedings of the 2010 ACM/IEEE International Conference for High Performance Computing, Networking, Storage and Analysis
4.45 Pflops astrophysical N-body simulation on K computer: the gravitational trillion-body problem

SC '12 Proceedings of the International Conference on High Performance Computing, Networking, Storage and Analysis

Quantified Score

Hi-index	0.00

Visualization

Abstract

In this paper, we describe the performance characteristics of GRAPE-6, the sixth-generation special-purpose computer for gravitational many-body problems. GRAPE-6 consists of 2048 custom pipeline chips, each of which integrates six pipeline processors specialized for the calculation of gravitational interaction between particles. The GRAPE hardware performs the evaluation of the interaction. The frontend processors perform all other operations, such as the time integration of the orbits of particles, I/O, on-the-fly analysis etc. The theoretical peak speed of GRAPE-6 is 63.4 Tflops. We present the result of benchmark runs, and discuss the performance characteristics. We also present the measured performance for a few real scientific applications. The best performance so far achieved with real applications is 35.3 Tflops.