QCDgrid: A Grid Resource for Quantum Chromodynamics

Abstract

Quantum Chromodynamics (QCD) is an application area that requires access to large supercomputing resources and generates large amounts of raw data. The UK's national lattice QCD collaboration UKQCD currently stores and requires access to around five Tbytes of data, a figure that is growing dramatically as the collaboration's purpose built supercomputing system, QCDOC [

A data placement service for petascale applications

“…For example, a system where data sets are valuable and expensive to regenerate may want to maintain several copies of each data item on different storage systems in the distributed environment. The UK Quantum Chromodynamics Grid (QCDGrid) project [19,20] is a virtual organization that maintains several redundant copies of data items for reliability. Medical applications that preserve patient records could also benefit from placement services that maintain multiple copies of data items.…”

A Network Performance Based Data Placement Policy in Distributed Data-Intensive Applications

“…Quantum Chromodynamics Grid (QCDGrid) project [1,2] makes a virtual organization, which maintains kind of redundancy to keep reliability of data sets. In Oceanstore global distributed storage system [3], developing Carbonite [4] and Tempo [5] algorithms to keep high durability of data sets.…”

Building a scientific data grid with D i GS

“…As explained in Perry et al (2005), the DIGS developers have worked with the UKQCD, developing their data grid since 2001.…”

“…The UKQCD is a collaboration of physicists conducting research into lattice field theory, with the aim to increase the predictive power of the standard model of elementary particle interactions through numerical simulation of quantum chromodynamics (QCD). As explained in Perry et al (2005), the DIGS developers have worked with the UKQCD, developing their data grid since 2001.…”