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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Multigrid for Wilson Clover Fermions in Grid

Jul 23, 2018, 4:50 PM
20m
103 (Kellogg Hotel and Conference Center)

103

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Algorithms and Machines Algorithms and Machines

Speaker

Mr Daniel Richtmann (University of Regensburg)

Description

With the ever-growing number of computing architectures, performance portability is an important aspect of (Lattice QCD) software. The Grid library provides a good framework for writing such code, as it thoroughly separates hardware-specific code from algorithmic functionality and already supports many modern architectures. The Regensburg group (RQCD) decided to deprecate its Xeon Phi version of the DD-$\alpha$AMG multigrid solver and implement this algorithm in Grid. We describe our implementation, review the coding efforts, and summarize our experiences with the Grid library. We present the solver's features and compare its performance with other multigrid implementations.

Primary author

Mr Daniel Richtmann (University of Regensburg)

Co-author

Prof. Tilo Wettig (University of Regensburg)

Presentation Materials