Multi-GPU sort-last volume visualization

  • Authors:
  • Stéphane Marchesin;Catherine Mongenet;Jean-Michel Dischler

  • Affiliations:
  • LSIIT, UMR, CNRS, Louis Pasteur University, Strasbourg, France;LSIIT, UMR, CNRS, Louis Pasteur University, Strasbourg, France;LSIIT, UMR, CNRS, Louis Pasteur University, Strasbourg, France

  • Venue:
  • EG PGV'08 Proceedings of the 8th Eurographics conference on Parallel Graphics and Visualization
  • Year:
  • 2008

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Abstract

In this paper, we propose an experimental study of an inexpensive off-the-shelf sort-last volume visualization architecture based upon multiple GPUs and a single CPU. We show how to efficiently make use of this architecture to achieve high performance sort-last volume visualization of large datasets. We analyze the bottlenecks of this architecture.We compare this architecture to a classical sort-last visualization system using a cluster of commodity machines interconnected by a gigabit Ethernet network. Based on extensive experiments, we show that this solution competes very well with a mid-sized PC cluster, while it significantly improves performance compared to a single standard PC.