Visualising parallel jobs

When working on a parallel job with LIBHPM, by default each process generates its own *.viz file. We worked out two convenient ways to load these multiple files in the visualisation tool:

• On the UNIX command-line: List all the *.viz files on the command-line after the hpmviz command. This is particular useful when using wildcards for the file names originating from jobs with large processor counts.
• In the browser of the file menu of the visualisation tool: Select multiple files by holding the Control-key while clicking on them. If the files are consecutive, you can select the first file by clicking on it and the last file by holding down the Shift-key while clicking on it. In both cases it is helpful that you can sort the files by name, size, date etc. when using the ``Detail view'' format.

When comparing different runs it is useful to have different root names for the *.viz files. Change the second argument of the hpmInit command and recompile or use the environment variable HPM_OUTPUT_NAME.