47 citations · 127 across the 9 of their papers we have counts for
9 papers
QCDOC: A 10-teraflops scale computer for lattice QCD
D. Chen, N. H. Christ, C. Cristian +10
The architecture of a new class of computers, optimized for lattice QCD calculations, is described. An individual node is based on a single integrated circuit containing a PowerPC…
Status of the QCDSP project
Dong Chen, Ping Chen, Norman H. Christ +15
We describe the completed 8,192-node, 0.4Tflops machine at Columbia as well as the 12,288-node, 0.6Tflops machine assembled at the RIKEN Brookhaven Research Center. Present perform…
Anomalous Chiral Symmetry Breaking above the QCD Phase Transition
Shailesh Chandrasekharan, Dong Chen, Norman Christ +3
We study the anomalous breaking of U_A(1) symmetry just above the QCD phase transition for zero and two flavors of quarks, using a staggered fermion, lattice discretization. The pr…
QCDSP - A status report
QCDSP Collaboration, Dong Chen, Ping Chen +16
The QCDSP machine at Columbia University has grown to 2,048 nodes achieving a peak speed of 100 Gigaflops. Software for quenched and Hybrid Monte Carlo (HMC) evolution schemes has…
Dependence of QCD hadron masses on the number of dynamical quarks
Dong Chen, Robert D. Mawhinney
We have studied the hadron spectrum while varying the number of light dynamical quarks when the physical lattice spacing and volume are held fixed relative to the rho mass. For two…
Excited states in the full QCD hadron spectrum on a lattice
Dong Chen
We report the hadron mass spectrum obtained on a lattice at using two flavors of staggered fermions with . We calculate the masses of excited…