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Large Data Visualization on Distributed Memory Multi-GPU Clusters

Large Data Visualization on Distributed Memory Multi-GPU Clusters. Thomas Fogal , Hank Childs, Siddharth Shankar, Jens Krüger, R. Daniel Bergeron, Philip Hatcher. Parallel Volume Rendering. Volume Rendering Scalability. Need lots of cores to render at acceptable speeds.

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Large Data Visualization on Distributed Memory Multi-GPU Clusters

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  1. Large Data Visualization on Distributed Memory Multi-GPU Clusters Thomas Fogal, Hank Childs, Siddharth Shankar, Jens Krüger, R. Daniel Bergeron, Philip Hatcher

  2. Parallel Volume Rendering

  3. Volume Rendering Scalability • Need lots of cores to render at acceptable speeds • Figure: Howison, Bethel, Childs, MPI-hybrid Parallelism for Volume Rendering on Large, Multi-core Systems, EGPGV 2010

  4. Longhorn

  5. Performance

  6. Brick Size NVIDIA Quadro FX 5800's

  7. Dynamic Load Balancing

  8. Load Balancing

  9. Future Work - AMR • "Adaptive mesh refinement" data • some spatial regions have higher-resolution • coarse/fine boundaries: sampling • uneven load distribution

  10. Thanks • Funding • VACET • CIBC • C-SAFE • MMCI (Saarland University) • Resources • TACC • ORNL • Open source communities: GLEW, Mesa, VisIt • Anonymous reviewers • You!

  11. Questions?

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