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Visualization of big SPH simulations via compressed octree grids
2013
2013 IEEE International Conference on Big Data
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We resample the particle data to a multiresolution multiblock grid, where the resolution of the blocks is dictated by the particle distribution. ...
Interactive and high-quality visualization of spatially continuous 3D fields represented by scattered distributions of billions of particles is challenging. ...
ACKNOWLEDGMENT We would like to thank Volker Springel from the Max Planck Society in Garching for his support with the data set. This publication is based on work supported by Award No. ...
doi:10.1109/bigdata.2013.6691717
dblp:conf/bigdataconf/ReichlTW13
fatcat:vum5milb5nfodjhpgk6mbo2rtm
A scalable and tunable adaptive resolution parallel i/o framework
2018
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Adaptive resolution storage and I/O, which allows subsets of a simulation to be accessed at varying spatial resolutions, can yield significant improvements to both the storage performance and I/O time. ...
This is achieved by developing technology for highly scalable and tunable parallel I/O, applicable to both traditional parallel data formats and multiresolution data formats, which are directly appropriate ...
This problem is addressed by layout-aware data aggregation, an I/O transformation suited specifically for sparse data dumps. ...
doi:10.26053/0h-rvmj-htg0
fatcat:7xzngi7gjzdr7nbrqu4ajtzyom
A divide-and-conquer/cellular-decomposition framework for million-to-billion atom simulations of chemical reactions
2007
Computational materials science
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Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently ...
Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining ...
An orderof-magnitude improvement in the I/O performance was achieved for MD data with user-controlled error bound [36] . ...
doi:10.1016/j.commatsci.2006.04.012
fatcat:muocll6lfvazrj4qmy2geazy6m
Occam's razor and petascale visual data analysis
2009
Journal of Physics, Conference Series
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An effective approach will likely combine application architectures that are capable of running on today's largest platforms to address the challenges posed by large data with visual data analysis techniques ...
For large to very large data, an approach was presented that evaluates FTLEs adaptively by varying the density of seeded particles in dependence of the spatial variation of the FTLE measure. ...
VisIt's parallelization approach uses domain decomposition so that each MPI process, which runs data I/O, processing, and rendering, operates only on its data subset. ...
doi:10.1088/1742-6596/180/1/012084
fatcat:tctjmafyfbhbfpwifrt3dhblgm
A Survey of GPU-Based Large-Scale Volume Visualization
[article]
2014
Eurographics Conference on Visualization
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This leads to recent outputsensitive approaches that are "ray-guided," "visualization-driven," or "display-aware." ...
In addition to combining the parallel processing power of GPUs with out-of-core methods and data streaming, a major enabler for interactivity is making both the computational and the visualization effort ...
We would like to thank Fabio Marton, Timo Ropinski, and Daniel Weiskopf for their valuable feedback, and Hendrik Strobelt for his help. This work was partially supported by NSF grant OIA 1125087. ...
doi:10.2312/eurovisstar.20141175
dblp:conf/vissym/BeyerHP14
fatcat:7bxd7zifyba37nqkcuht3qtsxy
Visualization for the Physical Sciences
2012
Computer graphics forum (Print)
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We introduce novel classifications schemes based on application area, data dimensionality and challenges addressed, and apply this classification scheme to each contribution. 4. ...
We introduce novel classification schemes based on application area, data dimensionality and main challenge addressed, and apply these classifications to each contribution from the literature. ...
We thank James Walker for proof-reading our paper and we acknowledge the anonymous reviewers for their thorough and insightful reviews. ...
doi:10.1111/j.1467-8659.2012.03184.x
fatcat:43gtqxe355cgvjhz5cvyw75vk4
Fusion Simulation Project Workshop Report
2008
Journal of fusion energy
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The Fusion Simulation Project agenda for applied mathematics and computer science lies squarely on top of the ten-year vision statement "Simulation and Modeling at the Exascale for Energy, Ecological Sustainability ...
going beyond traditional reductionism focused on detailed understanding of components; (2) interdisciplinary simulations incorporating expertise from all relevant quarters and observational data; and ...
There are also many advantages to adopting a parallel I/O layer that hides the complexity of the I/O logic and enables hiding I/O costs by overlapping I/O with computation. ...
doi:10.1007/s10894-008-9151-4
fatcat:mgibgmcdand75ptldzeeekwdwm
State-of-the-Art in GPU-Based Large-Scale Volume Visualization
2015
Computer graphics forum (Print)
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This leads to recent outputsensitive approaches that are "ray-guided," "visualization-driven," or "display-aware." ...
In addition to combining the parallel processing power of GPUs with out-of-core methods and data streaming, a major enabler for interactivity is making both the computational and the visualization effort ...
These challenges require research on novel techniques for data visualization, processing, storage, and I/O that scale to extreme-scale data [MWY * 09, AAM * 11, BCH12]. ...
doi:10.1111/cgf.12605
fatcat:3dlv7zvzm5dx7nxqgfglp5vew4
The Peano software - parallel, automaton-based, dynamically adaptive grid traversals
[article]
2018
arXiv
pre-print
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adaptive mesh refinement software. ...
We discuss the design decisions, design alternatives and rationale behind the third generation of Peano, a framework for dynamically adaptive Cartesian meshes derived from spacetrees. ...
Notably, thanks are due to Hans-Joachim Bungartz and his group at Technische Universität München who provided the longest-term environment for the development of this code. ...
arXiv:1506.04496v6
fatcat:iwgintogxjgiviybhvymz5xxou
The Peano Software—Parallel, Automaton-based, Dynamically Adaptive Grid Traversals
2019
ACM Transactions on Mathematical Software
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Notably, thanks are due to Hans-Joachim Bungartz and his group at Technische Universität München who provided the longest-term environment for the development of this code. ...
Adaptive Cartesian grids yield hanging nodes such as the vertex adjacent to I,O,Q. ...
For the grid from Figure B we obtain touchVertexFirstTime(v I,G,F,H ) enterCell(I) enterCell(G) enterCell(O) touchVertexFirstTime(v I,G,F,H ) createHangingVertex(v I,O,F,H ) touchVertexFirstTime(v I,G, ...
doi:10.1145/3319797
fatcat:5kohpbz3w5eqhfmjg67qngdsla
VDB
2013
ACM Transactions on Graphics
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Since the VDB data structure is fundamentally hierarchical, it also facilitates adaptive grid sampling, and the inherent acceleration structure leads to fast algorithms that are well-suited for simulations ...
Our "VDB", so named because it is a Volumetric, Dynamic grid that shares several characteristics with B+trees, exploits spatial coherency of time-varying data to separately and compactly encode data values ...
of a data structure and the spatial layout of voxels. ...
doi:10.1145/2487228.2487235
fatcat:zkee6xsz5vdfbfzs267ymadq7y
Multi-resolution bitmap indexes for scientific data
2007
ACM Transactions on Database Systems
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In particular, previously proposed methods of binning, encoding, and compressing bitmap vectors either were quite slow for processing the large-range query conditions our scientists used, or required excessive ...
In this article, we describe the difficulties we encountered in deploying bitmap indexes with scientific data and queries from two real-world domains. ...
of Illinois for help with the rocket science data set, and Vikas Mehra and Pratyush Sinha for their help with the earth science data set. ...
doi:10.1145/1272743.1272746
fatcat:umx62g5wxbgbrfe6k4zlfbhage
D8.3: Re-integration into Community Codes
2013
Zenodo
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WP8, together with scientists and community software developers from Astrophysics, Climate, Material Science, Particle Physics and Engineering, re-designed and re-factored eighteen codes. ...
The main focus of WP8 was the re-design and refactoring of a number of selected codes for scientific numerical applications, in order to effectively run on coming generations of supercomputing architectures ...
It is presumed that geometry data is placed in the distributed memory in a spatial locality aware way. ...
doi:10.5281/zenodo.6572421
fatcat:z6yjehkxrjdvnptuodtehjb6v4
Textures revisited
2005
The Visual Computer
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We describe texture generation methods for complex objects. ...
Our methods are fully automatic, except for the registration process between a 3D model and input photographs. We demonstrate the application of our method to human face models for evaluation. ...
Acknowledgement This work has been partially funded by the Max Planck Center for Visual Computing and Communication. ...
doi:10.1007/s00371-005-0283-5
fatcat:fth3yojcczdrtbjkfwxia7op7a
Computer-Assisted Medical Education
[chapter]
2014
Visual Computing for Medicine
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Visible Human The most widely used data sources for anatomy education are the Visible Human datasets. ...
Thus, in addition to the above-mentioned general requirements for e-learning systems in medicine, there are some further requirements for systems related to image data, e.g., in radiology and surgery.These ...
S I M U L AT I O N F O R S U R G E R Y A N D I N T E R V E N T I O N A L R A D I O L O G Y Computer support for the study of operative techniques is motivated by the desire to avoid damage to patients ...
doi:10.1016/b978-0-12-415873-3.00021-3
fatcat:ppmxm5nogffzhergpc3imhnd6a
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