News

PAPI 5.5.0 Release
2016-09-14

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. 

As always, a very large Thank You goes out to all our collaborators and contributors!  This project would not be successful without your help!

The PAPI release can be downloaded from http://icl.cs.utk.edu/papi/software.

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Announcing PAPI 5.4.3
2016-01-26

PAPI 5.4.3 is now available.  

This release includes some new implementations of components and tools, some general enhancements, and a number of bug fixes.

New Implementations:

  • libmsr component: Using LLNL's libmsr library to access Intel RAPL (Running Average Power Limit) library adds power capping abilities to PAPI.
  • CUDA PC sampling: A new standalone CUDA sampling tool (papi_cuda_sampling) has been added to the CUDA component (components/cuda/sampling/) and can be used as a preloader to perform PC sampling on Nvidia GPUs which support the CUPTI sampling interface (e.g. Maxwell).
  • ARM Cortex A53 support: Event definitions added.

Enhancements:

  • Added Haswell-EP uncore support
  • Initial Broadwell, Skylake support
  • Added a general CUDA example (components/cuda/test) that uses LD_PRELOAD to attach to a running CUcontext.
  • Added "-check" flag to papi_avail and papi_native_avail to test counter availability/validity, unifying previous flags.

Information about the bug fixes can be found in the release notes and the ChangeLogP543.txt documents.

Last but not least, a special Thank You goes out to all our collaborators and contributors!  This project would not be successful without your help!

The PAPI release can be downloaded from http://icl.cs.utk.edu/papi/software.


Announcing PAPI 5.4.1
2015-03-02

PAPI 5.4.1 is now available. This is a minor release with a major rewrite of the CUDA component as well as several other enhancements and bug fixes.

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Announcing PAPI 5.4.0
2014-11-14

Just in time for SuperComputing 2014, PAPI 5.4.0 is now available.

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Announcing PAPI 5.3.2
2014-07-02

PAPI 5.3.2 is now available. This is a minor release featuring several enhancements and bug fixes.

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