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GPU Servers for Research in Quantum Fluids
- L. Galantucci
Introduction GPU Servers Research Conclusion
GPU Servers for Research in Quantum Fluids L. Galantucci HPC & - - PowerPoint PPT Presentation
GPU Servers for Research in Quantum Fluids L. Galantucci HPC & - - PowerPoint PPT Presentation
Introduction GPU Servers Research Conclusion GPU Servers for Research in Quantum Fluids L. Galantucci HPC & Quantum Summit QEII Centre, London, 5 February 2019 Introduction GPU Servers Research Conclusion Overview Introduction 1
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JQC Durham - Newcastle
22 staff 23 Post Doc 28 PhD Grants ∼ 15M£(EPSRC)
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Newcastle University
School of Mathematics, Statistics and Physics
9 staff 4 Post Doc 5 PhD
Quantum Turbulence Quantum Vortices Bose Einstein Condensates Superfluid Helium
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Quantum fluids Group
School of Mathematics, Statistics and Physics
- Prof. Barenghi
- Dr. Parker
Quantum Vortex Reconnections in Trapped Atomic BECs EP/R005192/1 10/2017 - 09/2020 374,496 £ ∼ 45,000 £ equipment
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Tesla V100 GPUs Server
comparison BEC experiments in Trento 4×105 → 4×107 atoms ×100 computing power memory 64 GB past: 24 CPU node, 128 GB IBM POWER9 GPU Server 2× 16-core 2.60 GHz POWER9 256 GB DDR4 Memory 4x NVIDIA Tesla V100 GPU NVLINK SXM2 Tesla V100 GPUs 5120 cores 7.850 GFLOPS 16 GB Memory HBM2 Mem → 900 GB/sec
[NVIDIA Tesla V100 SXM2 Module]
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NVLINK 2.0
NVIDIA - IBM NVLINK 2.0: 300 GB/s
- GPU - GPU
- GPU - CPU
NVIDIA - INTEL NVLINK 1.0: 160 GB/s
- GPU - GPU
PCIe: 32GB/s GPU - CPU
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Quantum Vortex Reconnections
Quantum vortices
- ne-dimensional objects
hollow core source of rotational motion Importance of Reconnections redistribute energy quantum turbulence dissipate energy
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Plasmas
Magnetic Flux Tubes
reconnections of magnetic field lines
[Zhike et al., Nat. Com. (2016)]
anomalous heating of solar corona
[Cirtain et al., Nature (2013)]
explosive events, solar and stellar flares
[Che et al., Nature (2011)]
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Polymers and DNA
long chains of atoms [Marenduzzo et al., PNAS (2009)] [Marenda et al., Nat Comm (2018)]
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Optical beams
lines of zero intensity [Dennis et al., Nature (2010)]
- ptical vortices
phase singularities
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Nematic Liquid Crystals
Topological Defects [Chuang et al., Science (1991)]
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Classical and Quantum Fluids
vortices [Hussain et al., Phys. Fluids (2011)] [LG et al., subm. PNAS (2018)]
vortex tubes vortex lines
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Quantum Vortex Reconnections
Visualization
collaboration with BEC Centre, Trento core ∼ 0.5µm, size ∼ 50µm innovative stroboscopic technique
- rientation of vortices
rebound reconnection
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Quantum Vortex Reconnections
Universal aspects scaling distance δ(t) energy dissipation ǫ Controlled Vortex Generation laser beams atomtronics
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