The time line view shows when send and receive events happened on individual processors.
Red circles represent sends, and green squares represent receives.
The diagonal lines show the messages that travel from a send to a receive. Panorama, a visualization and debugging tool for parallel programming, offers researchers multiple graphical views of their applications while they run their code. This new tool was developed by John May of Lawrence Livermore National Laboratory while a UCSD doctoral student in computer science and engineering, under Fran Berman, a UCSD professor and an SDSC senior fellow. This tool uses both the target parallel computer and a sequential computer, such as a workstation, which acts as a front-end. The two systems must be connected over a network so researchers can log in to the parallel machine from the workstation.