Just in time for SC09, PAPI 3.7.1 is now available for download. This is an incremental release of Classic PAPI with a few bug fixes and a few new or improved features.
If PAPI 3.7.0 is working fine for you, there’s no pressing reason to upgrade.
If you’d like better support for the new perf_counter interface in the Linux 2.6.31 kernel, this might be the ticket. We’ve added autodetection of the perf_counter interface in the new kernel and eliminated some bugs that prevented basic counting of many Intel and Opteron events.
In addition to some other general cleanup, we also fixed a long-standing bug in multiplexing and better positioned PAPI for building rpms.
As always, the release tarball is available at: http://icl.cs.utk.edu/papi/software/.