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

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Presentation transcript:

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

Growth of Data

Parallel Volume Rendering

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

Longhorn

Performance

Brick Size NVIDIA Quadro FX 5800's

Dynamic Load Balancing

Load Balancing

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

High resolution images Load balancing Additional grid types (curvilinear) Decoupled processing and rendering? Future Work

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

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