PAPI 5.6.0 Release
PAPI 5.6.0 contains a major cleanup of the source code and the build system to have consistent code structure, eliminate errors, and reduce redundancies. A number of validation tests have been added to PAPI to verify the PAPI preset events. Improvements and changes to multiple PAPI components have been made, varying from supporting new events to fixes in the component testing.
For specific and detailed information on changes made in this release, see ChangeLogP560.txt for keywords of interest or go directly to the PAPI git repository.
- Validation tests: A substantial effort to add validation tests to PAPI to check and detect problems in the definition of PAPI preset events.
- Event testing: Thorough cleanup of code in the C and Fortran testing to add processor support, cleanup output and make the testing behavior consistent.
- CUDA component: Updated and rewritten to support CUPTI Metric API (combinations of basic events). This component now supports NVLink information through the Metric API. Updated testing for the component.
- NVML component: Updated to support power management limits and improved event names. Minor other bug fixes.
- RAPL component: Added support for: Intel Atom models Goldmont / Gemini_Lake / Denverton, Skylake-X / Kabylake
- PAPI preset events: Many updates to the PAPI preset event mappings; Skylake X support, initial AMD fam17h, fix AMD fam16h, added more Power8 events, initial Power9 events.
- Updating man and help pages for papi_avail and papi_native_avail.
- Powercap component: Added test for setting power caps via PAPI powercap component.
- Infiniband component: Bugfix for infiniband_umad component.
- Uncore component: Updated to support recent processors.
- Lmsensors component updated to support correct runtime linking, better events name, and a number of bug fixes.
- Updated and fixed timer support for multiple architectures.
- All components: Cleanup and standardize testing behavior in the components.
- Build system: Much needed cleanup of configure and make scripts.
- Support for C++ was enhanced.
- Enabling optional support for reading events using perfevent-rdpmc on recent Linux kernels can speed up PAPI_read() by a factor of 5.
- Pthread testing limited to avoid excessive CPU consumption on highly parallel machines.
Acknowledgements: This release is the result of efforts from many people, with special Thanks to Vince Weaver, Phil Mucci, Steve Kauffman, William Cohen, Will Schmidt, and Stephane Eranian (for libpfm4) from the internal PAPI team.
To verify the integrity of the download, the MD5 sum of
papi-5.6.0.tar.gz = fdd075860b2bc4b8de8b8b5c3abf594a
PAPI 5.5.1 Release
PAPI 5.5.1 is now available. This is a point release intended primarily to add support for uncore performance monitoring events on Intel Xeon Phi Knights Landing (KNL). Other minor bugfixes have also been made.
For specific and detailed information on changes made in this release, see ChangeLogP551.txt for keywords of interest or go directly to the PAPI git repository.
- Added Knights Landing (KNL) uncore event support via libpfm4.
- Fix some possible string termination problems.
- Cleanup lustre and mx components.
- Enable RAPL for Broadwell-EP.
PAPI 5.5.0 release
PAPI 5.5 is now available. This release includes a new component that provides read and write access to the information and controls exposed via the Linux powercap interface.The PAPI powercap component supports measuring and capping power usage on recent Intel architectures.
We have added core support for Knights Landing (uncore support will be released later) as well as power monitoring via the RAPL and powercap components.
- Added Knights Landing (KNL) core events and preset events.
- Added Intel Broadwell/Skylake/Knights Landing RAPL support
- Updated PAPI preset event support for Intel Broadwell/Skylake
- Powercap component: PAPI now supports the Linux Power Capping Framework which exposes power capping devices and power measurement to user space via a sysfs virtual file system interface.
- Add support for multiple flavors of POWER8 processors.
- Force all processors to check event schedulability by checking that PAPI can successfully read the counters.
- Support for Intel Broadwell-EP, Skylake, Goldmont, Haswell-EP inherited from libpfm4.
- Shared memory object (.so) naming is made more limited so that minor updates do not break ABI compatibility.
- Improve testlib error messages if a component fails to initialize.
- Fix _papi_hwi_postfix_calc parsing and robustness.
- Clean build rules for CUDA sampling subcomponent.
- Correct IBM Power7 and Power8 computation of PAPI_L1_DCA.
- Eliminate the sole use of ftests_skip subroutine.
- Correct the event string names for tenth.c.
- Have Fortran test support code report errors more clearly.
- Cleanup output from libmsr component.
- PAPI internal functions were marked as static to avoid exposing them externally.
- Multiple component were fixed to make internal functions static where possible, to avoid exposing the functions as externally accessible entry points.
- CUDA component configuration bug fixed.
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