@conference {icl:16, title = {The PAPI Cross-Platform Interface to Hardware Performance Counters}, booktitle = {Department of Defense Users{\textquoteright} Group Conference Proceedings}, year = {2001}, month = {2001-06}, address = {Biloxi, Mississippi}, abstract = {The purpose of the PAPI project is to specify a standard API for accessing hardware performance counters available on most modern microprocessors. These counters exist as a small set of registers that count \"events,\" which are occurrences of specific signals and states related to the processor{\textquoteright}s function. Monitoring these events facilitates correlation between the structure of source/object code and the efficiency of the mapping of that code to the underlying architecture. This correlation has a variety of uses in performance analysis and tuning. The PAPI project has developed a standard set of hardware events and a standard cross-platform library interface to the underlying counter hardware. The PAPI library has been implemented for a number of Shared Resource Center platforms. The PAPI project is developing end-user tools for dynamically selecting and displaying hardware counter performance data. PAPI support is also being incorporated into a number of third-party tools.}, keywords = {papi}, author = {Kevin London and Shirley Moore and Phil Mucci and Keith Seymour and Richard Luczak} }