Search Results - "DÜBEN, Peter"

DYAMOND: The DYnamics of the Atmospheric general circulation Modeled on Non-hydrostatic Domains by Stevens, Bjorn, Satoh, Masaki, Auger, Ludovic, Biercamp, Joachim, Bretherton, Christopher S, Chen, Xi, Düben, Peter, Judt, Falko, Khairoutdinov, Marat, Klocke, Daniel, Kodama, Chihiro, Kornblueh, Luis, Lin, Shian-Jiann, Neumann, Philipp, Putman, William M, Röber, Niklas, Shibuya, Ryosuke, Vanniere, Benoit, Vidale, Pier Luigi, Wedi, Nils, Zhou, Linjiong

“…A review of the experimental protocol and motivation for DYAMOND, the first intercomparison project of global storm-resolving models, is presented. Nine models…”
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rpe v5: an emulator for reduced floating-point precision in large numerical simulations by Dawson, Andrew, Düben, Peter D

“…This paper describes the rpe (reduced-precision emulator) library which has the capability to emulate the use of arbitrary reduced floating-point precision…”
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The use of imprecise processing to improve accuracy in weather & climate prediction by Düben, Peter D., McNamara, Hugh, Palmer, T.N.

“…The use of stochastic processing hardware and low precision arithmetic in atmospheric models is investigated. Stochastic processors allow hardware-induced…”
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Fluid Simulations Accelerated With 16 Bits: Approaching 4x Speedup on A64FX by Squeezing ShallowWaters.jl Into Float16 by Klöwer, Milan, Hatfield, Sam, Croci, Matteo, Düben, Peter D., Palmer, Tim N.

“…Most Earth‐system simulations run on conventional central processing units in 64‐bit double precision floating‐point numbers Float64, although the need for…”
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A New Number Format for Ensemble Simulations by Düben, Peter D.

“…A new number format for ensemble simulations for weather and climate predictions is presented. The new format exploits similarities between ensemble members to…”
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Reliable low precision simulations in land surface models by Dawson, Andrew, Düben, Peter D., MacLeod, David A., Palmer, Tim N.

“…Weather and climate models must continue to increase in both resolution and complexity in order that forecasts become more accurate and reliable. Moving to…”
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Resilience and fault tolerance in high-performance computing for numerical weather and climate prediction by Benacchio, Tommaso, Bonaventura, Luca, Altenbernd, Mirco, Cantwell, Chris D, Düben, Peter D, Gillard, Mike, Giraud, Luc, Göddeke, Dominik, Raffin, Erwan, Teranishi, Keita, Wedi, Nils

“…Progress in numerical weather and climate prediction accuracy greatly depends on the growth of the available computing power. As the number of cores in top…”
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Exploiting the chaotic behaviour of atmospheric models with reconfigurable architectures by Russell, Francis P., Düben, Peter D., Niu, Xinyu, Luk, Wayne, Palmer, T.N.

“…Reconfigurable architectures are becoming mainstream: Amazon, Microsoft and IBM are supporting such architectures in their data centres. The computationally…”
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A study of reduced numerical precision to make superparameterization more competitive using a hardware emulator in the OpenIFS model by Düben, Peter D., Subramanian, Aneesh, Dawson, Andrew, Palmer, T. N.

“…The use of reduced numerical precision to reduce computing costs for the cloud resolving model of superparameterized simulations of the atmosphere is…”
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An approach to secure weather and climate models against hardware faults by Düben, Peter D., Dawson, Andrew

“…Enabling Earth System models to run efficiently on future supercomputers is a serious challenge for model development. Many publications study efficient…”
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Compressing atmospheric data into its real information content by Klöwer, Milan, Razinger, Miha, Dominguez, Juan J, Düben, Peter D, Palmer, Tim N

“…Hundreds of petabytes are produced annually at weather and climate forecast centers worldwide. Compression is essential to reduce storage and to facilitate…”
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Rounding errors may be beneficial for simulations of atmospheric flow: results from the forced 1D Burgers equation by Düben, Peter D., Dolaptchiev, Stamen I.

“…Inexact hardware can reduce computational cost, due to a reduced energy demand and an increase in performance, and can therefore allow higher-resolution…”
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Choosing the Optimal Numerical Precision for Data Assimilation in the Presence of Model Error by Hatfield, Sam, Düben, Peter, Chantry, Matthew, Kondo, Keiichi, Miyoshi, Takemasa, Palmer, Tim

“…The use of reduced numerical precision within an atmospheric data assimilation system is investigated. An atmospheric model with a spectral dynamical core is…”
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On the use of inexact, pruned hardware in atmospheric modelling by Düben, Peter D., Joven, Jaume, Lingamneni, Avinash, McNamara, Hugh, De Micheli, Giovanni, Palem, Krishna V., Palmer, T. N.

“…Inexact hardware design, which advocates trading the accuracy of computations in exchange for significant savings in area, power and/or performance of…”
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A discontinuous/continuous low order finite element shallow water model on the sphere by Düben, Peter D., Korn, Peter, Aizinger, Vadym

“…We study the applicability of a new finite element in atmosphere and ocean modeling. The finite element under investigation combines a second order continuous…”
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On the use of programmable hardware and reduced numerical precision in earth‐system modeling by Düben, Peter D., Russell, Francis P., Niu, Xinyu, Luk, Wayne, Palmer, T. N.

“…Programmable hardware, in particular Field Programmable Gate Arrays (FPGAs), promises a significant increase in computational performance for simulations in…”
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Opportunities for energy efficient computing: A study of inexact general purpose processors for high-performance and big-data applications by Duben, Peter, Schlachter, Jeremy, Parishkrati, Yenugula, Sreelatha, Augustine, John, Enz, Christian, Palem, K., Palmer, T. N.

“…In this paper, we demonstrate that disproportionate gains are possible through a simple devise for injecting inexactness or approximation into the hardware…”
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On the use of scale‐dependent precision in Earth System modelling by Thornes, Tobias, Düben, Peter, Palmer, Tim

“…Increasing the resolution of numerical models has played a large part in improving the accuracy of weather and climate forecasts in recent years. Until now,…”
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Reduced‐precision parametrization: lessons from an intermediate‐complexity atmospheric model by Saffin, Leo, Hatfield, Sam, Düben, Peter, Palmer, Tim

“…Reducing numerical precision can save computational costs which can then be reinvested for more useful purposes. This study considers the effects of reducing…”
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Assessing the scales in numerical weather and climate predictions: will exascale be the rescue? by Neumann, Philipp, Düben, Peter, Adamidis, Panagiotis, Bauer, Peter, Brück, Matthias, Kornblueh, Luis, Klocke, Daniel, Stevens, Bjorn, Wedi, Nils, Biercamp, Joachim

“…We discuss scientific features and computational performance of kilometre-scale global weather and climate simulations, considering the Icosahedral…”
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