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

Clover HMC and Staggered Multigrid on Summit/Volta

Jul 25, 2018, 4:10 PM
103 (Kellogg Hotel and Conference Center)


Kellogg Hotel and Conference Center

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


Dr Kate Clark (NVIDIA)


We report on recent work to integrate and optimize QUDA's adaptive multi-grid solver into Chroma RHMC Wilson-clover gauge evolution. Particular emphasis has been paid to optimization for the new Volta-powered Summit supercomputer. When combined with other recent improvements into Chroma's molecular dynamics implementation, in moving from Titan to Summit we achieve close to an aggregate 100x improvement in throughput in gauge evolution. Finally, we report on the ongoing project to incorporate staggered multigrid into QUDA. We have completed an initial four-dimensional implementation based on our two-dimensional algorithm and will present initial results on dynamical gauge configurations, concluding with prospects for integrating multigrid into staggered gauge evolution.

Primary author

Dr Kate Clark (NVIDIA)


Alexei Strelchenko (FNAL) Dr Balint Joó (Jlab) Dr Boram Yoon (Los Alamos National Laboratory) Dr Dean Howarth (BU) Dr Evan Weinberg (NVIDIA) Dr Mathias Wagner (NVIDIA) Prof. Richard C. Brower (Boston University)

Presentation Materials