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Efficient Parallel Rendering in VisIt: Infrastructure and Future Directions

This presentation discusses the advancements in parallel rendering infrastructures in VisIt, focusing on efficient techniques for handling large datasets that are "too big to move." Key topics include community outreach for infrastructure projects, multi-GPU distributed volume rendering, the integration of Tuvok with VisIt, and improvements in bug tracking systems. We also explore future work in multiresolution rendering and the need for input on various rendering approaches. The aim is to enhance volume rendering speed significantly and foster collaboration across different research communities.

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Efficient Parallel Rendering in VisIt: Infrastructure and Future Directions

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Presentation Transcript

  1. Parallel Rendering && VisIt Infrastructure Tom Fogal www.vacet.org

  2. Impact • Infrastructure projects • Efficient parallel rendering in VisIt • VisIt infrastructure: process, community outreach • “Basic” infrastructure: wide range of groups • Most applicable: large data • “Too big to move” groups • 20 seconds is too long for volume rendering! • Accelerate it (now) • Other approaches (later) • CI-testing, BTS: all VisIt development www.vacet.org

  3. Back to the Future • Tuvok / VisIt integration • Multi-GPU Distributed Volume Rendering • New Bug tracking system • IceT and related work • GLEW / Mesa issues sorted out (AIX) • GPU – IO paper • VisIt bug fixes affecting above www.vacet.org

  4. Multi-GPU Parallel Volume Rendering www.vacet.org

  5. VisTrails Integration www.vacet.org

  6. Input Needed – Parallel Rendering Chromium SAGE IceT Equalizer www.vacet.org

  7. Future - Multiresolution • Colleague integrated multires operator, DB • Basic implementation now • Expand in this cycle www.vacet.org

  8. Future Work • Parallel VisIt GPU access (2.1) • Multiresolutionin VisIt • BTS • CI improvements • Infrastructure: Plot OpenGL use (2.1) • GLEW v2? • VisIt/Tuvok(2.2?) • Long term: tiled rendering? www.vacet.org

  9. End • Thanks • Cyrus (LLNL) – Mesa/GLEW, buildbot • Jianrong (Utah) – GLEW, particularly win32/GLEW • Hank – IceT interface issues needed for default, paper Questions? www.vacet.org

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