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检索条件"机构=Software and Tools for Computational Engineering"
44 条 记 录,以下是1-10 订阅
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Discrete Interval Adjoints in Unconstrained Global Optimization  6th
Discrete Interval Adjoints in Unconstrained Global Optimizat...
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6th World Congress on Global Optimization, WCGO 2019
作者: Deussen, Jens Naumann, Uwe Software and Tools for Computational Engineering RWTH Aachen University Aachen Germany
We describe how to deploy interval derivatives up to second order in the context of unconstrained global optimization with a branch and bound method. For computing these derivatives we combine the Boost interval libra... 详细信息
来源: 评论
Parallel Adjoint Taping Using MPI  23rd
Parallel Adjoint Taping Using MPI
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23rd International Conference on computational Science, ICCS 2023
作者: Towara, Markus Kremer, Jannick Naumann, Uwe Software and Tools for Computational Engineering RWTH Aachen University Aachen Germany
The adjoint reversal of long evolutionary calculations (e.g. loops), where each iteration depends on the output of the previous iteration, is a common occurrence in computational engineering (e.g. computational fluid ... 详细信息
来源: 评论
A wish list for efficient adjoints of one-sided MPI communication
A wish list for efficient adjoints of one-sided MPI communic...
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19th European MPI Users' Group Meeting on Recent Advances in the Message Passing Interface, EuroMPI 2012
作者: Schanen, Michel Naumann, Uwe LuFG Informatik 12: Software and Tools for Computational Engineering RWTH Aachen University Germany
We present a generic approach to transforming one-sided MPI communication in the context of adjoint code. The adjoint allows us to compute gradients of multivariate function implementations at a computational cost tha... 详细信息
来源: 评论
Development of a discrete adjoint CFD code using algorithmic differentiation by operator overloading  1
Development of a discrete adjoint CFD code using algorithmic...
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1st International Conference on engineering and Applied Sciences Optimization, OPT-i 2014
作者: Dastouri, Z. Lotz, J. Naumann, U. RWTH Aachen University Software and Tools for Computational Engineering AachenD-52062 Germany
Design optimization for fluid flow recently has drawn a great deal of attention in the industrial design area including aeronautic[1, 2], turbo-machinery[3] and automotive design[4, 5]. The optimization problem is sub... 详细信息
来源: 评论
Adjoining hybrid parallel code
Adjoining hybrid parallel code
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8th International Conference on engineering computational Technology, ECT 2012
作者: Schanen, M. Foerster, M. Lotz, J. Leppkes, K. Naumann, U. Software and Tools for Computational Engineering Dept. LuFG Informatik 12 RWTH Aachen University Germany
OpenMP and MPI are typically used in combination to implement distributed shared memory parallelization schemes for numerical simulations on hybrid systems. The performance of said numerical simulations is frequently ... 详细信息
来源: 评论
Higher-order discrete adjoint ODE Solver in C++ for dynamic optimization
Higher-order discrete adjoint ODE Solver in C++ for dynamic ...
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15th Annual International Conference on computational Science, ICCS 2015
作者: Lotz, Johannes Naumann, Uwe Hannemann-Tamás, Ralf Ploch, Tobias Mitsos, Alexander RWTH Aachen Software and Tools for Computational Engineering Aachen Germany RWTH Aachen Process Systems Engineering Aachen Germany
Parametric ordinary differential equations (ODE) arise in many engineering applications. We consider ODE solutions to be embedded in an overall objective function which is to be minimized, e.g. for parameter estimatio... 详细信息
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Towards tangent-linear GPU programs using OpenACC
Towards tangent-linear GPU programs using OpenACC
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4th Symposium on Information and Communication Technology, SoICT 2013
作者: Minh, Bui Tat Förster, Michael Naumann, Uwe Bangkok Thailand LuFG Informatik 12: Software and Tools for Computational Engineering RWTH Aachen University Aachen Germany
Recently, Graphics Processing Units(GPUs) have emerged as a very promisingly powerful resource in scientific computing. Algorithmic Differentiation is a technique to numerically evaluate first and higher derivatives o... 详细信息
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Discrete adjoints of PETSc through dco/c++ and adjoint MPI
Discrete adjoints of PETSc through dco/c++ and adjoint MPI
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19th International Conference on Parallel Processing, Euro-Par 2013
作者: Lotz, Johannes Naumann, Uwe Sagebaum, Max Schanen, Michel LuFG Informatik 12: Software and Tools for Computational Engineering RWTH Aachen University Germany Department of Mathematics Center for Computational Engineering Science RWTH Aachen University Germany
PETSc's [1] robustness, scalability and portability makes it the foundation of various parallel implementations of numerical simulation codes. We formulate a least squares problem using a PETSc implementation as t... 详细信息
来源: 评论
MPI-Parallel Discrete Adjoint OpenFOAM
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Procedia Computer Science 2015年 51卷 19-28页
作者: Markus Towara Michel Schanen Uwe Naumann Software and Tools for Computational Engineering RWTH Aachen University Aachen Germany
OpenFOAM is a powerful Open-Source (GPLv3) computational Fluid Dynamics tool box with a rising adoption in both academia and industry due to its continuously growing set of features and the lack of license costs. Our ... 详细信息
来源: 评论
Evaluating Energy Efficiency of Buildings using Artificial Neural Networks and K-means Clustering Techniques  3
Evaluating Energy Efficiency of Buildings using Artificial N...
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3rd International Conference on Computing, Mathematics and engineering Technologies, iCoMET 2020
作者: Nazir, Ahsan Wajahat, Ahsan Akhtar, Faheem Ullah, Faheem Qureshi, Sirajuddin Malik, Sher Afghan Shakeel, Anum Beijing University of Technology Beijing School of Software Engineering China RWTH Aachen University Software Tools for Computational Engineering Germany Sukkur IBA University Department of Computer Science Sukkur65200 Pakistan
The consumption of energy in buildings has risen abruptly over the last decades. Due to less energy-efficient buildings, most of the energy is being thrown in our surroundings thus making an adverse effect on our envi... 详细信息
来源: 评论