Experiences in driving a cave with IBM scalable graphics engine-3 (SGE-3) prototypes

  • Authors:
  • Prabhat;Samuel G. Fulcomer

  • Affiliations:
  • Brown University, Providence, RI;Brown University, Providence, RI

  • Venue:
  • Proceedings of the ACM symposium on Virtual reality software and technology
  • Year:
  • 2005

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Abstract

The IBM Scalable Graphics Engine-3 (SGE-3) prototype is a network attached framebuffer. In its application at Brown, it is a pixel compositor for distributed rendering and a video source for frame-sequential stereo display in a four-wall CAVE™ -like display, a TAN VR-Cube. The configuration uses 4 SGE-3 prototype units (one per display wall) and 48 rendering nodes (12 per display wall; 6 per stereo field). With favorable rendering distribution, achieved performance per 12-node wall has been up to five times that of a single graphics card. This report provides details of the cluster systems architecture and the performance characteristics of the SGE-3 and sample test applications.