84 citations · 222 across the 12 of their papers we have counts for
3 papers · 1 filter
Algorithms for Disconnected Diagrams in Lattice QCD
Arjun Singh Gambhir, Andreas Stathopoulos, Kostas Orginos +3
Computing disconnected diagrams in Lattice QCD (operator insertion in a quark loop) entails the computationally demanding problem of taking the trace of the all to all quark propag…
PRIMME_SVDS: A High-Performance Preconditioned SVD Solver for Accurate Large-Scale Computations
Lingfei Wu, Eloy Romero, Andreas Stathopoulos
The increasing number of applications requiring the solution of large scale singular value problems have rekindled interest in iterative methods for the SVD. Some promising recent…
Deflation as a Method of Variance Reduction for Estimating the Trace of a Matrix Inverse
Arjun Singh Gambhir, Andreas Stathopoulos, Kostas Orginos
Many fields require computing the trace of the inverse of a large, sparse matrix. The typical method used for such computations is the Hutchinson method which is a Monte Carlo (MC)…