After much too long a wait, Component PAPI, or PAPI-C, or PAPI 4.0.0 has finally arrived.
The inaugural release of Component PAPI represents a significant architectural change from PAPI 3.7.x and earlier. As such, your application must be recompiled and relinked to libpapi, the PAPI library for this version to work. PAPI-C is backward compatible with earlier versions of PAPI. All new library features are supported through new APIs and all old APIs still work as expected. Applications instrumented for PAPI should continue to work as expected with no changes.
Read more...