Report of the Snowmass 2013 Computing Frontier working group on Lattice Field Theory -- Lattice field theory for the energy and intensity frontiers: Scientific goals and computing needs

TL;DR

This report discusses the future computational needs of the U.S. lattice gauge theory community, emphasizing the importance of continued support for lattice-QCD to advance high-energy physics research at energy and intensity frontiers.

Contribution

It provides a comprehensive overview of past progress and outlines future computing requirements and plans for lattice-QCD research relevant to upcoming experiments.

Findings

Significant progress in lattice-QCD simulations over the past decade.

Detailed computational resource requirements for future lattice-QCD calculations.

Emphasis on the necessity of sustained support for lattice-QCD efforts.

Abstract

This is the report of the Computing Frontier working group on Lattice Field Theory prepared for the proceedings of the 2013 Community Summer Study ("Snowmass"). We present the future computing needs and plans of the U.S. lattice gauge theory community and argue that continued support of the U.S. (and worldwide) lattice-QCD effort is essential to fully capitalize on the enormous investment in the high-energy physics experimental program. We first summarize the dramatic progress of numerical lattice-QCD simulations in the past decade, with some emphasis on calculations carried out under the auspices of the U.S. Lattice-QCD Collaboration, and describe a broad program of lattice-QCD calculations that will be relevant for future experiments at the intensity and energy frontiers. We then present details of the computational hardware and software resources needed to undertake these calculations.