JuxtaView - a tool for interactive visualization of large imagery on scalable tiled displays

JuxtaView is a cluster-based application for viewing ultra-high-resolution images on scalable tiled displays. We present in JuxtaView, a new parallel computing and distributed memory approach for out-of-core montage visualization, using LambdaRAM, a software-based networklevel cache system. The ultimate goal of JuxtaView is to enable a user to interactively roam through potentially terabytes of distributed, spatially referenced image data such as those from electron microscopes, satellites and aerial photographs. In working towards this goal, we describe our first prototype implemented over a local area network, where the image is distributed using LambdaRAM, on the memory of all nodes of a PC cluster driving a tiled display wall. Aggressive pre-fetching schemes employed by LambdaRAM help to reduce latency involved in remote memory access. We compare LambdaRAM with a more traditional memorymapped file approach for out-of-core visualization.

• Type: Conference
• Year: 2004
• Where: CLUSTER
• Authors: Naveen K. Krishnaprasad, Venkatram Vishwanath, Shalini Venkataraman, A. G. Rao, Luc Renambot, Jason Leigh, Andrew E. Johnson, Brian Davis
• Keywords: CLUSTER 2004, Distributed And Parallel Computing, Distributed Memory, Out-of-core Montage Visualization, Scalable Tiled Displays