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ExtraPeak: Advanced Automatic Performance Modeling for HPC Applications
[chapter]
2020
Lecture Notes in Computational Science and Engineering
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This article summarizes the results of the two projects Catwalk, which aimed to create tools that automate key activities of the performance modeling process, and ExtraPeak, which built upon the results ...
Unfortunately, the difficulties of creating such models manually and the effort involved render performance modeling a topic limited to a relatively small community of experts. ...
Catwalk The most important goal of Catwalk was to provide an automated method for constructing performance models. ...
doi:10.1007/978-3-030-47956-5_15
fatcat:d7ogrnpaargzzbpee43bgoq2ya
Understanding the Scalability of Molecular Simulation Using Empirical Performance Modeling
[chapter]
2019
Lecture Notes in Computer Science
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[27] used both Score-P and Extra-P to analyze the scalability of the whole UG4 framework, which simulates drug diffusion through the human skin. ...
Empirical performance modeling is a proven technique for automated generation of performance models from the results of code benchmarking. ...
doi:10.1007/978-3-030-17872-7_8
fatcat:h6ekqtzyjvcbfi6ishcw4olppe
Code generation approaches for parallel geometric multigrid solvers
2020
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
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As an example the numerical solution of an elliptic partial differential equation via generated geometric multigrid solvers is considered. ...
This is mainly due to the increasing parallelism and heterogeneity in modern computer architectures and to the more realistic physical and mathematical models that have to be processed. ...
This research has been funded partly by the Federal Ministry of Education and Research of Germany (BMBF) through the HPC2SE project and partly by the Deutsche Forschungsgemeinschaft (DFG) in its priority ...
doi:10.2478/auom-2020-0038
fatcat:rr63bsabc5cbbbcw7eljtr3gzy
Anatomically Detailed and Large-Scale Simulations Studying Synapse Loss and Synchrony Using NeuroBox
2016
Frontiers in Neuroanatomy
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MATERIALS AND METHODS In this section we will introduce the tools and methods used for the simulations performed in Section 3. ...
A combination of neuron and network generating tools (Section 2.1), synapse distribution algorithms, a new approach for numerical discretization of the network topology and a parallel computing framework ...
ACKNOWLEDGMENTS We want to thank Michael Hoffer for the helpful discussions and support around all VRL-based developments. ...
doi:10.3389/fnana.2016.00008
pmid:26903818
pmcid:PMC4751272
fatcat:v2xuqveygvck7izuyw4db2cytm
Lightweight, semi-automatic variability extraction: a case study on scientific computing
2021
Empirical Software Engineering
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Such alternative artifacts can speed up performance of the simulation or make it amenable to other use cases, without modifying the overall structure of the simulation. ...
We evaluate the practicality of VORM—especially, as it is very lightweight but possibly imprecise—by means of a case study on the DUNE numerics framework and two simulations from the realm of physical ...
Acknowledgements This work has been supported by the German Research Foundation (DFG), as part of the Priority Programme 1648 "Software for Exascale Computing", under the contract AP 206/7 and Pervolution ...
doi:10.1007/s10664-020-09922-8
fatcat:yujaqyh2xbd27nlwsj7btuo5ke
A Framework for Big Data Analytical Process and Mapping—BAProM: Description of an Application in an Industrial Environment
2020
Energies
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This paper presents an application of a framework for Big Data Analytical Process and Mapping—BAProM—consisting of four modules: Process Mapping, Data Management, Data Analysis, and Predictive Modeling ...
The real-world application showed the practical feasibility of the framework, particularly the effectiveness of the analytical workbench, for pre-processing and exploratory analysis, as well as the combined ...
The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results. ...
doi:10.3390/en13226014
fatcat:loxougpimffjdmxw555d6xdyii
Extreme-scale Multigrid Components within PETSc
[article]
2016
arXiv
pre-print
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Multilevel preconditioners represent a family of scalable techniques for solving discrete PDEs of this type and thus are the method of choice for high-resolution simulations. ...
We provide an overview of the design and implementation of this functionality, together with several use cases highlighting the benefits of agglomeration. ...
, and perform publicly and display publicly, by or on behalf of the Government. ...
arXiv:1604.07163v1
fatcat:gpnszozdfzhepjv7xrkqmdvj7y
A novel mesh generator for the numerical simulation of multi-scale physics in neurons
[article]
2021
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Mesh generation routines are compiled into a versatile and fully automated reconstruct-and-simulation toolbox for multi-scale physics to be utilized on high-performance or regular computing infrastructures ...
First-principle numerical simulations on the neuronal reconstructions reveal that intracellular Calcium dynamics are effected by morphological features of the neurons, for instance a change of endoplasmic ...
simulation framework ug4 [171, 74] amongst others. ...
doi:10.34944/dspace/4723
fatcat:obyguewn2falhjvt5nckqhxrye
Towards "On the Go" Matching of Linked Open Data Ontologies
2011
International Joint Conference on Artificial Intelligence
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The semantic extension is based on the adoption of the S-Match semantic matching tool and on the use of a specifically designed faceted ontology codifying domain specific knowledge. ...
In this paper we summarize our experience in providing a semantic extension to the geo-catalogue of the Autonomous Province of Trento (PAT) in Italy. ...
We wish to thank all the contributors to the project. ...
dblp:conf/ijcai/CruzPCS11
fatcat:62apmemu2zgirduzh6zomuw7wi
Changing land use in an uncertain climate: impacts on surface water and groundwater in the Goulburn River NSW
[article]
2019
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As a key contribution to the United Nations (UN) sustainable development goals, the UN high-level panel on water (HLPW) in 2018 identified as a priority the prevention of degradation and pollution of rivers ...
to separate them from the impacts of climate change, natural [...] ...
The results varied from
in the Sydney Basin developed a model of the aquifer framework of multilayered Triassic Hawkesbury sandstone porous rock aquifers. ...
doi:10.25911/5da986e1660f9
fatcat:lu5qik7jjvfw7mfdwrvjks7r3a
Electromagnetic Measurements with the KATRIN Pre-Spectrometer
2009
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The KArlsruhe TRItium Neutrino (KATRIN) Experiment will investigate the 'electron antineutrino' mass with a sensitivity of 200meV/c2. ...
A key to reach this sensititvity is a significant improvement of the MAC-E filter (Magnetic Adiabatic Collimation with Electrostatic filter) technology for the energy analysis of beta decay electrons. ...
The modifications performed in the framework of this thesis are of central importance for a better understanding of MAC-E filters as high resolution low background spectrometers for low-energy electrons ...
doi:10.5445/ir/1000013549
fatcat:3oqpg44tprfe5plttanwpd7meq