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Visualization at exascale: Making it all work with VTK-m.

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Title: Visualization at exascale: Making it all work with VTK-m.
Authors: Moreland, Kenneth1 (AUTHOR) morelandkd@ornl.gov, Athawale, Tushar M1 (AUTHOR), Bolea, Vicente2 (AUTHOR), Bolstad, Mark3 (AUTHOR), Brugger, Eric4 (AUTHOR), Childs, Hank5 (AUTHOR), Huebl, Axel6 (AUTHOR), Lo, Li-Ta7 (AUTHOR), Geveci, Berk2 (AUTHOR), Marsaglia, Nicole4 (AUTHOR), Philip, Sujin2 (AUTHOR), Pugmire, David1 (AUTHOR), Rizzi, Silvio8 (AUTHOR), Wang, Zhe1 (AUTHOR), Yenpure, Abhishek2 (AUTHOR)
Source: International Journal of High Performance Computing Applications. Sep2024, Vol. 38 Issue 5, p508-526. 19p.
Subject Terms: *Software libraries (Computer programming), *Computer software development, Particle acceleration, Scientific visualization, Scientific discoveries
Abstract: The VTK-m software library enables scientific visualization on exascale-class supercomputers. Exascale machines are particularly challenging for software development in part because they use GPU accelerators to provide the vast majority of their computational throughput. Algorithmic designs for GPUs and GPU-centric computing often deviate from those that worked well on previous generations of high-performance computers that relied on traditional CPUs. Fortunately, VTK-m provides scientific visualization algorithms for GPUs and other accelerators. VTK-m also provides a framework that simplifies the implementation of new algorithms and adds a porting layer to work across multiple processor types. This paper describes the main challenges encountered when making scientific visualization available at exascale. We document the surprises and obstacles faced when moving from pre-exascale platforms to the final exascale designs and the performance on those systems including scaling studies on Frontier, an exascale machine with over 37,000 AMD GPUs. We also report on the integration of VTK-m with other exascale software technologies. Finally, we show how VTK-m helps scientific discovery for applications such as fusion and particle acceleration that leverage an exascale supercomputer. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of High Performance Computing Applications is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Visualization at exascale: Making it all work with VTK-m.
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  Data: <searchLink fieldCode="AR" term="%22Moreland%2C+Kenneth%22">Moreland, Kenneth</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> morelandkd@ornl.gov</i><br /><searchLink fieldCode="AR" term="%22Athawale%2C+Tushar+M%22">Athawale, Tushar M</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bolea%2C+Vicente%22">Bolea, Vicente</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bolstad%2C+Mark%22">Bolstad, Mark</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Brugger%2C+Eric%22">Brugger, Eric</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Childs%2C+Hank%22">Childs, Hank</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Huebl%2C+Axel%22">Huebl, Axel</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lo%2C+Li-Ta%22">Lo, Li-Ta</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Geveci%2C+Berk%22">Geveci, Berk</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Marsaglia%2C+Nicole%22">Marsaglia, Nicole</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Philip%2C+Sujin%22">Philip, Sujin</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pugmire%2C+David%22">Pugmire, David</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rizzi%2C+Silvio%22">Rizzi, Silvio</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Zhe%22">Wang, Zhe</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yenpure%2C+Abhishek%22">Yenpure, Abhishek</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+High+Performance+Computing+Applications%22">International Journal of High Performance Computing Applications</searchLink>. Sep2024, Vol. 38 Issue 5, p508-526. 19p.
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  Label: Abstract
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  Data: The VTK-m software library enables scientific visualization on exascale-class supercomputers. Exascale machines are particularly challenging for software development in part because they use GPU accelerators to provide the vast majority of their computational throughput. Algorithmic designs for GPUs and GPU-centric computing often deviate from those that worked well on previous generations of high-performance computers that relied on traditional CPUs. Fortunately, VTK-m provides scientific visualization algorithms for GPUs and other accelerators. VTK-m also provides a framework that simplifies the implementation of new algorithms and adds a porting layer to work across multiple processor types. This paper describes the main challenges encountered when making scientific visualization available at exascale. We document the surprises and obstacles faced when moving from pre-exascale platforms to the final exascale designs and the performance on those systems including scaling studies on Frontier, an exascale machine with over 37,000 AMD GPUs. We also report on the integration of VTK-m with other exascale software technologies. Finally, we show how VTK-m helps scientific discovery for applications such as fusion and particle acceleration that leverage an exascale supercomputer. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of International Journal of High Performance Computing Applications is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1177/10943420241270969
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      – Code: eng
        Text: English
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        PageCount: 19
        StartPage: 508
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      – SubjectFull: Software libraries (Computer programming)
        Type: general
      – SubjectFull: Computer software development
        Type: general
      – SubjectFull: Particle acceleration
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      – SubjectFull: Scientific visualization
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      – SubjectFull: Scientific discoveries
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              M: 09
              Text: Sep2024
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