Search Results for author: Thorsten Kurth

Found 25 papers, 12 papers with code

Modulated Adaptive Fourier Neural Operators for Temporal Interpolation of Weather Forecasts

no code implementations24 Oct 2024 Jussi Leinonen, Boris Bonev, Thorsten Kurth, Yair Cohen

Trained to interpolate between two time steps 6 h apart, the ModAFNO-based interpolation model produces 1 h resolution intermediate time steps that are visually nearly indistinguishable from the actual corresponding 1 h resolution data.

Weather Forecasting

Toward Capturing Genetic Epistasis From Multivariate Genome-Wide Association Studies Using Mixed-Precision Kernel Ridge Regression

no code implementations3 Sep 2024 Hatem Ltaief, Rabab Alomairy, Qinglei Cao, Jie Ren, Lotfi Slim, Thorsten Kurth, Benedikt Dorschner, Salim Bougouffa, Rached Abdelkhalak, David E. Keyes

We exploit the widening margin in tensor-core performance between [FP64/FP32/FP16/INT8, FP64/FP32/FP16/FP8/INT8] on NVIDIA [Ampere, Hopper] GPUs to boost the performance of output accuracy-preserving mixed-precision computation of Genome-Wide Association Studies (GWAS) of 305K patients from the UK BioBank, the largest-ever GWAS cohort studied for genetic epistasis using a multivariate approach.

Coupled Ocean-Atmosphere Dynamics in a Machine Learning Earth System Model

no code implementations12 Jun 2024 Chenggong Wang, Michael S. Pritchard, Noah Brenowitz, Yair Cohen, Boris Bonev, Thorsten Kurth, Dale Durran, Jaideep Pathak

Seasonal climate forecasts are socioeconomically important for managing the impacts of extreme weather events and for planning in sectors like agriculture and energy.

Neural Operators with Localized Integral and Differential Kernels

2 code implementations26 Feb 2024 Miguel Liu-Schiaffini, Julius Berner, Boris Bonev, Thorsten Kurth, Kamyar Azizzadenesheli, Anima Anandkumar

In this work, we present a principled approach to operator learning that can capture local features under two frameworks by learning differential operators and integral operators with locally supported kernels.

Operator learning

A Practical Probabilistic Benchmark for AI Weather Models

1 code implementation27 Jan 2024 Noah D. Brenowitz, Yair Cohen, Jaideep Pathak, Ankur Mahesh, Boris Bonev, Thorsten Kurth, Dale R. Durran, Peter Harrington, Michael S. Pritchard

We also reveal how multiple time-step loss functions, which many data-driven weather models have employed, are counter-productive: they improve deterministic metrics at the cost of increased dissipation, deteriorating probabilistic skill.

Diagnostic Weather Forecasting

Advancing Parsimonious Deep Learning Weather Prediction using the HEALPix Mesh

1 code implementation11 Sep 2023 Matthias Karlbauer, Nathaniel Cresswell-Clay, Dale R. Durran, Raul A. Moreno, Thorsten Kurth, Boris Bonev, Noah Brenowitz, Martin V. Butz

We present a parsimonious deep learning weather prediction model to forecast seven atmospheric variables with 3-h time resolution for up to one-year lead times on a 110-km global mesh using the Hierarchical Equal Area isoLatitude Pixelization (HEALPix).

Deep Learning

Spherical Fourier Neural Operators: Learning Stable Dynamics on the Sphere

4 code implementations6 Jun 2023 Boris Bonev, Thorsten Kurth, Christian Hundt, Jaideep Pathak, Maximilian Baust, Karthik Kashinath, Anima Anandkumar

Fourier Neural Operators (FNOs) have proven to be an efficient and effective method for resolution-independent operator learning in a broad variety of application areas across scientific machine learning.

Operator learning

Using Machine Learning to Augment Coarse-Grid Computational Fluid Dynamics Simulations

no code implementations30 Sep 2020 Jaideep Pathak, Mustafa Mustafa, Karthik Kashinath, Emmanuel Motheau, Thorsten Kurth, Marcus Day

As a proof-of-concept, we demonstrate our ML-PDE strategy on a two-dimensional turbulent (Rayleigh Number $Ra=10^9$) Rayleigh-B\'enard Convection (RBC) problem.

BIG-bench Machine Learning

Hierarchical Roofline Performance Analysis for Deep Learning Applications

1 code implementation11 Sep 2020 Charlene Yang, Yunsong Wang, Steven Farrell, Thorsten Kurth, Samuel Williams

This paper presents a practical methodology for collecting performance data necessary to conduct hierarchical Roofline analysis on NVIDIA GPUs.

Deep Learning Image Segmentation +1

Time-Based Roofline for Deep Learning Performance Analysis

no code implementations9 Sep 2020 Yunsong Wang, Charlene Yang, Steven Farrell, Yan Zhang, Thorsten Kurth, Samuel Williams

Deep learning applications are usually very compute-intensive and require a long run time for training and inference.

Deep Learning

$F_K / F_π$ from Möbius domain-wall fermions solved on gradient-flowed HISQ ensembles

1 code implementation10 May 2020 Nolan Miller, Henry Monge-Camacho, Chia Cheng Chang, Ben Hörz, Enrico Rinaldi, Dean Howarth, Evan Berkowitz, David A. Brantley, Arjun Singh Gambhir, Christopher Körber, Christopher J. Monahan, M. A. Clark, Bálint Joó, Thorsten Kurth, Amy Nicholson, Kostas Orginos, Pavlos Vranas, André Walker-Loud

We report the results of a lattice quantum chromodynamics calculation of $F_K/F_\pi$ using M\"{o}bius domain-wall fermions computed on gradient-flowed $N_f=2+1+1$ highly-improved staggered quark (HISQ) ensembles.

High Energy Physics - Lattice High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Theory

Simulating the weak death of the neutron in a femtoscale universe with near-Exascale computing

1 code implementation3 Oct 2018 Evan Berkowitz, M. A. Clark, Arjun Gambhir, Ken McElvain, Amy Nicholson, Enrico Rinaldi, Pavlos Vranas, André Walker-Loud, Chia Cheng Chang, Bálint Joó, Thorsten Kurth, Kostas Orginos

The fundamental particle theory called Quantum Chromodynamics (QCD) dictates everything about protons and neutrons, from their intrinsic properties to interactions that bind them into atomic nuclei.

High Energy Physics - Lattice Distributed, Parallel, and Cluster Computing Nuclear Theory Computational Physics C.1.4; D.1.3

Exascale Deep Learning for Climate Analytics

3 code implementations3 Oct 2018 Thorsten Kurth, Sean Treichler, Joshua Romero, Mayur Mudigonda, Nathan Luehr, Everett Phillips, Ankur Mahesh, Michael Matheson, Jack Deslippe, Massimiliano Fatica, Prabhat, Michael Houston

The Tiramisu network scales to 5300 P100 GPUs with a sustained throughput of 21. 0 PF/s and parallel efficiency of 79. 0%.

Distributed, Parallel, and Cluster Computing

A percent-level determination of the nucleon axial coupling from Quantum Chromodynamics

2 code implementations30 May 2018 Chia Cheng Chang, Amy Nicholson, Enrico Rinaldi, Evan Berkowitz, Nicolas Garron, David A. Brantley, Henry Monge-Camacho, Christopher J. Monahan, Chris Bouchard, M. A. Clark, Bálint Joó, Thorsten Kurth, Kostas Orginos, Pavlos Vranas, André Walker-Loud

The $\textit{axial coupling of the nucleon}$, $g_A$, is the strength of its coupling to the $\textit{weak}$ axial current of the Standard Model of particle physics, in much the same way as the electric charge is the strength of the coupling to the electromagnetic current.

High Energy Physics - Lattice High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory

Deep Neural Networks for Physics Analysis on low-level whole-detector data at the LHC

5 code implementations9 Nov 2017 Wahid Bhimji, Steven Andrew Farrell, Thorsten Kurth, Michela Paganini, Prabhat, Evan Racah

There has been considerable recent activity applying deep convolutional neural nets (CNNs) to data from particle physics experiments.

Möbius domain-wall fermions on gradient-flowed dynamical HISQ ensembles

3 code implementations26 Jan 2017 Evan Berkowitz, Chris Bouchard, Chia Cheng Chang, M. A. Clark, Balint Joo, Thorsten Kurth, Christopher Monahan, Amy Nicholson, Kostas Orginos, Enrico Rinaldi, Pavlos Vranas, Andre Walker-Loud

We report on salient features of a mixed lattice QCD action using valence M\"{o}bius domain-wall fermions solved on the dynamical $N_f=2+1+1$ HISQ ensembles generated by the MILC Collaboration.

High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory

On the Feynman-Hellmann Theorem in Quantum Field Theory and the Calculation of Matrix Elements

no code implementations21 Dec 2016 Chris Bouchard, Chia Cheng Chang, Thorsten Kurth, Kostas Orginos, Andre Walker-Loud

The Feynman-Hellmann theorem can be derived from the long Euclidean-time limit of correlation functions determined with functional derivatives of the partition function.

High Energy Physics - Lattice High Energy Physics - Phenomenology Nuclear Theory

High-Performance I/O: HDF5 for Lattice QCD

no code implementations28 Jan 2015 Thorsten Kurth, Andrew Pochinsky, Abhinav Sarje, Sergey Syritsyn, Andre Walker-Loud

Practitioners of lattice QCD/QFT have been some of the primary pioneer users of the state-of-the-art high-performance-computing systems, and contribute towards the stress tests of such new machines as soon as they become available.

High Energy Physics - Lattice Computational Physics

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