XPDB - X Windows Parallel DeBugger <author> <version> <abstract> In a parallel computer there are several activities occurring simultaneously at different locations. It is difficult to observe a parallel program with sequential debuggers. The X Windows Parallel Debugger XPDB brings together all necessary information at one place. A hierarchical display is used, so that processors and processes which are currently uninteresting can be clicked away. If detailed information is necessary it is possible to "open" these activities again. <description><url>http://www.informatik.uni-stuttgart.de/ipvr/as/grids/xpdb/xpdb-e.html</url> <reference><url></url> <contact>Roland Zink / Roland.Zink@informatik.uni-stuttgart.de <keywords>parallel debugging <category>ppt-exe <publication-date> <environment> <method> <application> <comments> </urc>