The 1 Teraflops QCDSP computer
نویسنده
چکیده
The QCDSP computer (Quantum Chromodynamics on Digital Signal Processors) is an inexpensive, massively parallel computer intended primarily for simulations in lattice gauge theory. Currently, two large QCDSP machines are in full-time use: an 8,192 processor, 0.4 Teraflops machine at Columbia University and an 12,288 processor, 0.6 Teraflops machine at the RIKEN-BNL Research Center at Brookhaven National Laboratory. We describe the design process, architecture, software and current physics projects of these computers.
منابع مشابه
Overview of the QCDSP and QCDOC computers
QCDSP and QCDOC computers P. A. Boyle D. Chen N. H. Christ M. A. Clark S. D. Cohen C. Cristian Z. Dong A. Gara B. Joó C. Jung C. Kim L. A. Levkova X. Liao G. Liu R. D. Mawhinney S. Ohta K. Petrov T. Wettig A. Yamaguchi The QCDSP and QCDOC computers are two generations of multithousand-node multidimensional mesh-based computers designed to study quantum chromodynamics (QCD), the theory of the st...
متن کاملThe status of US Teraflops-scale projects
The current status of United States projects pursuing Teraflops-scale computing resources for lattice field theory is discussed. Two projects are in existence at this time: the Multidisciplinary Teraflops Project, incorporating the physicists of the QCD Teraflops Collaboration, and a smaller project, centered at Columbia, involving the design and construction of a 0.8 Teraflops computer primari...
متن کاملOptimizing Performance on Linux Clusters Using Advanced Communication Protocols: How 10+ Teraflops Was Achieved on a 8.6 Teraflops Linpack-Rated Linux Cluster
Advancements in high-performance networks (Quadrics, Infiniband or Myrinet) continue to improve the efficiency of modern clusters. However, the average application efficiency is as small fraction of the peak as the system’s efficiency. This paper describes techniques for optimizing application performance on Linux clusters using Remote Memory Access communication protocols. The effectiveness of...
متن کاملar X iv : a st ro - p h / 97 04 27 7 v 1 2 8 A pr 1 99 7 The GRAPE - 4 , a Teraflops Stellar Dynamics Computer
Recently, special-purpose computers have surpassed general-purpose computers in the speed with which large-scale stellar dynamics simulations can be performed. Speeds up to a Teraflops are now available , for simulations in a variety of fields, such as planetary formation, star cluster dynamics, galactic nuclei, galaxy interactions, galaxy formation , large scale structure, and gravitational le...
متن کاملMessage passing on the QCDSP supercomputer
The QCDSP machines were designed for lattice gauge calculations. For planning it is crucial to explore this architecture for other computationally intensive tasks. Here I describe an implementation of a simple message passing scheme. With the objective being simplicity, I introduce a small number of generic functions for manipulating a large data set spread over the machine. I test the scheme o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Parallel Computing
دوره 25 شماره
صفحات -
تاریخ انتشار 1999