@techreport{Shalf:LBNL-50237, author = "John Shalf and E. Wes Bethel", title = {{Cactus and Visapult: A Case Study of Ultra-High Performance Distributed Visualization Using Connectionless Protocols}}, institution = {Lawrence Berkeley National Laboratory}, address={Berkeley, CA, USA, 94720}, number = {LBNL-50237}, year = {2002}, url = {http://vis.lbl.gov/Publications/2002/LBNL-50237-CactusVisapult.pdf} }