Application: GenASiS ( GENeral Astrophysics SImulation System for the Terascale Supernova Initiative, Oak Ridge National Laboratory)

Problem: HydroImplosion 2D(parameters)

Platform: Cheetah ( 27 node IBM p690 at ORNL: http://info.nccs.gov/cheetah/overview)

Performance Analysis Tool: TAU (Tuning and Analysis Utilities)

Results:

Function-time distribution (ordered by exclusive time)

Call Graphs: Sorted by exclusive time (exclusive time showing major function details) | inclusive time

3D-Visualization Graph 1 | Graph2

Statistics Table | Table with Call Path

Statistics Text

Call Path Relations

Miscellaneous: TAU Profile file | Batch job output | pprof output

Note: The pprof output and the statistics table results can be used to filter out frequent functions that don't perform much work in order to reduce the instrumentation overhead.