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PAPI Releases


PAPI 6.0.0.1 Bug Fix Release


PAPI 6.0.0.1 was released April 3, 2020. This release fixes a bug for static builds that caused an undefined reference to "pthread_self". Furthermore, a bug with "make -j" (parallel make) has been fixed.

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PAPI 6.0.0 Release


PAPI 6.0.0 was released March 4, 2020. This release includes a new API for SDEs (Software Defined Events), a major revision of the 'high-level API', and several new components, including ROCM and ROCM_SMI (for AMD GPUs), powercap_ppc and sensors_ppc (for IBM Power9 and later), SDE, and the IO component (exposes I/O statistics exported by the Linux kernel). Furthermore, PAPI 6.0 ships CAT, a new Counter Analysis Toolkit that assists with native performance counter disambiguation through micro-benchmarks.

For specific and detailed information on changes made for this release, see ChangeLogP600.txt for filenames or keywords of interest and change summaries, or go directly to the PAPI git repository.

Some Major Changes for PAPI 6.0 include:

  • Added the rocm component to support performance counters on AMD GPUs.
  • Added the rocm_smi component; SMI is System Management Interface to monitor power usage on AMD GPUs, which is also writeable by the user, e.g. to reduce power consumption on non-critical operations.
  • Added 'io' component to expose I/O statistics exported by the Linux kernel (/proc/self/io).
  • Added 'SDE' component, Software Defined Events, which allows HPC software layers to expose internal performance-critical behavior via Software Defined Events (SDEs) through the PAPI interface.
  • Added 'SDE API' to register performance-critical events that originate from HPC software layers, and which are recognized as 'PAPI counters' and, thus, can be monitored with the standard PAPI interface.
  • Added powercap_ppc component to support monitoring and capping of power usage on IBM PowerPC architectures (Power9 and later) using the powercap interface exposed through the Linux kernel.
  • Added 'sensors_ppc' component to support monitoring of system metrics on IBM PowerPC architectures (Power9 and later) using the opal/exports sysfs interface.
  • Retired infiniband_umad component, it is superseded by infiniband.
  • Revived PAPI's 'high-level API' to make it more intuitive and effective for novice users and quick event reporting.
  • Added 'counter_analysis_toolkit' sub-directory (CAT): A tool to assist with native performance counter disambiguation through micro-benchmarks, which are used to probe different important aspects of modern CPUs, to aid the classification of native performance events.

Other Changes include:

  • Standardized our environment variables and implemented a simplified, unified approach for specifying libraries necessary for components, with overrides possible for special circumstances. Eliminated component level 'configure' requirements.
  • Corrected TLS issues (Thread Local Storage) and race conditions.
  • Several bug fixes, documentation fixes and enhancements, improvements to README files for user instruction and code comments.

Acknowledgements

This release is the result of efforts from many people. The PAPI team would like to express special Thanks to Vince Weaver, Stephane Eranian (for libpfm4), William Cohen, Steve Kaufmann, Phil Mucci, Kevin Huck, Yunqiang Su, Carl Love, Andreas Beckmann, Al Grant and Evgeny Shcherbakov.

Download papi-6.0.0.tar.gz

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PAPI 5.7.0 Release


PAPI 5.7.0 was released March 4, 2019. This release includes a new component, called "pcp", which interfaces to the Performance Co-Pilot (PCP). It enables PAPI users to monitor IBM POWER9 hardware performance events, particularly shared “NEST” events without root access.

This release also upgrades the (to date read-only) PAPI “nvml” component with write access to the information and controls exposed via the NVIDIA Management Library. The PAPI “nvml” component now supports both---measuring and capping power usage---on recent NVIDIA GPU architectures (e.g. V100).

We have added power monitoring as well as PMU support for recent Intel architectures such as Cascade Lake, Kaby Lake, Skylake, and Knights Mill (KNM). Furthermore, measuring power usage for AMD Fam17h chips is now available via the “rapl” component.

For specific and detailed information on changes made for this release, see ChangeLogP570.txt for filenames or keywords of interest and change summaries, or go directly to the PAPI git repository.

Some Major Changes for PAPI 5.7 include:

  • Added the component PCP (Performance Co-Pilot, IBM) which allows access toPCP events via the PAPI interface.
  • Added support for IBM POWER9 processors.
  • Added power monitoring support for AMD Fam17h architectures via RAPL.
  • Added power capping support for NVIDIA GPUs.
  • Added benchmarks and testing for the “nvml” component, which allowspower-management (reporting and setting) for NVIDIA GPUs.
  • Re-implementation of the “cuda” component to better handle GPU events,metrics (values computed from multiple events), and NVLink events, each ofwhich have differently handling requirements and may require separate readgroupings.
  • Enhanced NVLink support, and added additional tests and example code forNVLink (high-speed GPU interconnect).
  • Extension of test suite with more advanced testing: attach_cpu_sys_validate,attach_cpu_validate, event_destroy test, openmp.F test, attach_validate test(rdpmc issue).

Other Changes include:

  • ARM64 configuration now works with newer Linux kernels (>=3.19).
  • As part of the “cuda” component, expanded CUPTI-only tests to distinguishbetween PAPI or non-PAPI issues with NVIDIA events and metrics.
  • Many memory leaks have been corrected. Not all, some 3rd party librarycodes still exhibit memory leaks.
  • Better reporting and error handling of bugs. Changes to “infiniband_umad”name reporting to distinguish it from the “infiniband” component.
  • Cleaning up of the source code, added documentation and test/utility files.

Acknowledgements

This release is the result of efforts from many people. The PAPI team would like to express special Thanks to Vince Weaver, Stephane Eranian (for libpfm4), William Cohen, Steve Kaufmann, Phil Mucci, and Konstantin Stefanov.

Download papi-5.7.0.tar.gz

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PAPI 5.6.0 Release


PAPI 5.6.0 was released December 20, 2017. It 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.

Major changes

  • 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.

Other changes

  • 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.

Download papi-5.6.0.tar.gz

To verify the integrity of the download, check the MD5 hash "md5sum papi-5.6.0.tar.gz":

fdd075860b2bc4b8de8b8b5c3abf594a

PAPI 5.5.1 Release


PAPI 5.5.1 was released November, 18, 2016. 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.

New Platforms

  • Added Knights Landing (KNL) uncore event support via libpfm4.

Bug Fixes

  • Fix some possible string termination problems.
  • Cleanup lustre and mx components.
  • Enable RAPL for Broadwell-EP.

Download papi-5.5.1.tar.gz

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