PAPI provides the tool designer and application engineer with a consistent interface and methodology for use of the performance counter hardware found in most major microprocessors. PAPI enables software engineers to see, in near real time, the relation between software performance and processor events.
In addition, PAPI provides access to a collection of components that expose performance measurement opportunites across the hardware and software stack.
Please cite the following reference when publishing results obtained with PAPI Component:
Terpstra, D., Jagode, H., You, H., Dongarra, J. "Collecting Performance Data with PAPI-C", Tools for High Performance Computing 2009, Springer Berlin / Heidelberg, 3rd Parallel Tools Workshop, Dresden, Germany, pp. 157-173, 2010.