The Ninth International Workshop on Numerical Analysis and Lattice QFT (QCDNA)

Europe/London
Higgs Centre for Theoretical Physics

Higgs Centre for Theoretical Physics

School of Physics and Astronomy The University of Edinburgh Peter Guthrie Tait Road Edinburgh, EH8 9BT United Kingdom
Oliver Witzel (University of Edinburgh)
Description
Numerical simulations of Quantum Chromodynamics (QCD) are well established and a state-of-the-art method to obtain nonperturbative predictions from the Standard Model (SM) of elementary particle physics. These predictions are crucial to complement the experimental research program at the LHC or at the future Belle II experiment. In order to fully leverage the experimental results, uncertainties of the theoretical predictions need to be at most of the same size and thus have to keep track with ongoing experimental improvements, higher luminosities, and refined detectors. In order to further reduce uncertainties of lattice QCD simulations, algorithmic improvements are required and our simulations codes need to account for the changes in the design of the next generation of supercomputers. This workshop aims to bring together the leading experts in algorithms and hardware specific optimisation in order to discuss new paradigms and methods required for future machines as well as challenges of simulations with physical light and heavy quarks on larger and finer lattices. In addition we aim to facilitate collaborations among the participants with the intention to agree on common interfaces allowing for higher portability of code packages.
    • 08:30
      Registration, Tea, and Coffee
    • 1
      The Anatomy of a Calculation of epsilon'
      Speaker: Norman Christ
      Slides
    • 2
      Heavy Quarks with Domain-Wall Fermions
      Speaker: Tobias Tsang
      Slides
    • 3
      Simplifying HEP software deployment using Containers Technology
      Speaker: Isabel Campos
      Slides
    • 11:10
      Tea and coffee break
    • 4
      Nim for LQCD and tuning force-gradient integrators for 8 flavor nHyp HMC
      Speaker: James Osborn
      Slides
    • 12:40
      Lunch
    • 5
      Deflation as a Method of Variance Reduction for Estimating the Trace of a Matrix Inverse
      Speaker: Andreas Stathopoulos
      Slides
    • 6
      Bounds on Eigenpairs in the interior of Krylov Spaces
      Speaker: Tony Kennedy
      Slides
    • 15:40
      Tea and coffee break
    • 7
      Fundamentals of Fermions on Simplicial Lattices
      Speaker: Richard Brower
      Slides
    • 8
      A Massive Momentum-Subtraction Scheme
      Speaker: Ava Khamseh
      Slides
    • Poster and discussion
    • Poster and discussion: Towards using the GRID as a low level library / Some tips on BiCGstab
      Convener: Issaku Kanamori
    • Poster and discussion: True Multigrid for 5d Chiral Fermions
      Conveners: Azusa Yamaguchi, Peter A. Boyle
    • Poster and discussion: Lattice QCD on NVIDIA P100 and DGX-1
      Convener: Kate Clark
    • Poster and discussion: Domain Wall Fermion Simulations with the Exact One-Flavor Algorithm
      Convener: David Murphy
    • Poster and discussion: pMR: A high-performance communication library
      Conveners: Daniel Richtmann, Peter Georg, Tilo Wettig
    • 9
      DD-alpha AMG on QPACE 2 & Inducing QCD with two bosonic flavors
      Speaker: Tilo Wettig
      Slides
    • 10
      NSPT near the continuum limit
      Speaker: Martin Lüscher
      Slides
    • 11:00
      Tea and coffee break
    • 11
      Lattice QCD on Non-Orientable Manifolds I -- Gauge Fields
      Speaker: Simon Mages
      Slides
    • 12
      Lattice QCD on Non-Orientable Manifolds II -- Fermions
      Speaker: Balint Toth
      Slides
    • 12:30
      Lunch
    • 13
      Multigrid for QCD
      Speaker: James Brannick
      Slides
    • 14
      (QUDA / multigrid)
      Speaker: Kate Clark
      Slides
    • 15:30
      Tea and coffee break
    • 15
      The DD-alpha AMG Solver Library
      Speaker: Matthias Rottmann
      Slides
    • 16
      Domain Wall Fermion Simulations with the Exact One-Flavor Algorithm
      Speaker: David Murphy
      Slides
    • Discussion
    • 19:00
      Dinner Nelson Room (St. Leonards Hall)

      Nelson Room

      St. Leonards Hall

    • 17
      A Jacobi Davidson Method with a Multigrid Solver for the Hermitian Wilson-Dirac Operator
      Speaker: Artur Strebel
      Slides
    • 18
      Adaptive Aggregation based Domain Decomposition Multigrid for Twisted Mass Fermions
      Speaker: Simone Bacchio
      Slides
    • 19
      AMG for Staggered Fermions - Progress Report
      Speaker: Matthias Rottmann
      Slides
    • 20
      (staggered multigrid)
      Speaker: Alexei Strelchenko
      Slides
    • 11:00
      Tea and Coffee Break
    • 21
      grid / HDCR
      Speaker: Peter Boyle
      Slides
    • 22
      Towards using the GRID as a low level library/ Some tips on BiCGstab
      Speaker: Issaku Kanamori
      Slides
    • 12:45
      Lunch
    • 23
      Performance Portability for Lattice QCD Towards Exascale
      Speaker: Meifeng Lin
      Slides
    • 24
      Exploring KNL Performance of the MILC Code
      Speaker: Steve Gottlieb
      Slides
    • 25
      MILC Staggered CG Performance on Intel KNL
      Speaker: Ruizi Li
      Slides
    • 15:30
      Tea and coffee break
    • 26
      Baryogenesis, novel CP violation and the neutron electric dipole moment on the lattice
      Speaker: Rajan Gupta
      Slides
    • Discussion and end of meeting