News
PAPI 4.2.0 is now available
2011-10-26

See the software page for details and to download the tarball.


PAPI 4.1.3 Update
2011-05-13

We had a minor mishap with yesterday's PAPI 4.1.3 tarball. A few changes were inadvertently ommitted. A new tarball was uploaded to the software page at 3:30 ET today (Friday). If you downloaded PAPI 4.1.3 yesterday or this morning, you may want to download a new copy.

Thanks,

- the (chagrined) management


PAPI 4.1.3 Now Available
2011-05-12

The PAPI 4.1.3 release is now available for download. This is a minor release of PAPI-C. It addresses a number of bugs and other issues that have surfaced since the 4.1.2 release. See the software page to download the tarball.

 

Read more...

PAPI CUDA Component
2011-03-12

PAPI community,
We would like to announce that the PAPI CUDA component is now available from the PAPI cvs repository. The CUDA component is a hardware performance counter measurement technology for the NVIDIA CUDA platform which provides access to the hardware counters inside the GPU. PAPI CUDA is based on CUPTI support - shipped with CUDA 4.0rc - in the NVIDIA driver library. In any environment where the CUPTI-enabled driver is installed, the PAPI CUDA component can provide detailed performance counter information regarding the execution of GPU kernels. If users want to test the component, they will have to do a clean checkout from cvs. Also, we are planning on releasing PAPI 4.2 when NVIDIA has a stable CUDA release in case you want to wait for an official release.

Let us know if you have questions.
Thanks,


PAPI 4.1.2.1 Now Available
2011-01-21

The PAPI 4.1.2.1 release is now available for download. This is a minor release of PAPI-C. It addresses a bug in event selection for Westmere processors. See the software page to download the tarball.


PAPI 4.1.2 Now Available
2011-01-20

The PAPI 4.1.2 release is now available for download. This is a minor release of PAPI-C. It addresses a number of bugs and other issues that have surfaced since the 4.1.1 release. See the software page to download the tarball.

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PAPI 4.1.1 Now Available
2010-10-01

The PAPI 4.1.1 release is now available for download. This is a minor release of PAPI-C. It addresses a number of bugs and other issues that have surfaced since the 4.1.0 release. See the software page to download the tarball.

Read more...

PAPI 4.1.0 Now Available
2010-06-22
The PAPI 4.1.0 release is now available for download. It incorporates all the fixes from the 4.0 patches, as well as a few other goodies. See the software page to download the tarball.
Read more...

Blue Gene P Patch
2010-04-30

We've fixed a bug that was causing a crash in Blue Gene P. Go to the Software page and download Patch # 3 if this applies to you. Read more details there.


PAPI Patches
2010-01-29

In order to help keep PAPI releases current, we're trying something different. PAPI patches will be made available periodically to help keep the most recent release up-to-date and bug free.

Visit the Software page to read about and download the first of the patches for PAPI 4.0.0.

Read more...

Announcing Component PAPI
2010-01-19

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...

Another PAPI 3.7.x Release
2009-12-05
If you've been having trouble installing PAPI on the new Linux kernels (2.6.31 and 2.6.32) you might want to check out the new PAPI 3.7.2 release.

Thanks to an update error in the tarball, PAPI 3.7.1 did not have the promised automatic configuration support for the 2.6.31 kernel. While fixing that, we also added clean support for the 2.6.32 kernel and the name change from perf_counter to perf_event.

Read more...

PAPI 3.7.1
2009-11-14

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.

Read more...

PAPI 3.7 and Jaguar
2009-09-09

The newly released PAPI 3.7.0 runs great on the newly upgraded Jaguar 6-Core XT5.

Read more...

Announcing PAPI 3.7.0
2009-09-08

The latest release of PAPI Classic is here.

PAPI version 3.7.0 provides support for the latest processors from Intel and AMD, including Core i7 (Nehalem) and Atom, Shanghai and Istanbul.

 

Read more...

PAPI Now Has User Forum
2009-08-25

In a blatant attempt to remain trendy and relevant, PAPI now has its very own User Discussion Forum. You can find it at: http://icl.cs.utk.edu/papi/forum/, or by following the link at the bottom left of the PAPI web page. Of course, we'll continue to maintain our mailing lists, but anyone who is truly cool will want to start their own topic in this forum -- or at least chime in on someone else's topic. Register now. It's easy. The more people that use it, the more value it will have. You might even be the first to post!


Support for Intel Core i7 (Nehalem)
2009-01-23

PAPI now supports Intel's new Core i7 (Nehalem) processor. To download the development version of PAPI with this support use cvs as described in this FAQ.

Read more...

Short start/stop times in papi_cost utility
2009-01-14

There's a bug in the papi_cost utility that grossly under-reports the start/stop times for PAPI execution.

To fix it, download the new source from: papi/src/utils/cost.c and rebuild.

Read more...

The PAPI 3.6.2 release is here.
2008-10-03

We now support IBM POWER6 on AIX.

Really.

Read more...

PAPI 3.6.1 is here
2008-08-04

The incremental PAPI 3.6.1 release is here.

In addition to a handful of important bug fixes, this release also introduces support for SiCortex and Cell processors.

Read more...

PAPI 3.6 Released
2008-05-02

After much delay and anticipation, PAPI 3.6 has finally been released.

In addition to support for newer dual and quad core processors from Intel and AMD, this version has added support for POWER6 with Linux, new offerings from Cray, Itanium multicore chips, and FreeBSD.

Read more...

PAPI-C Technology Pre-Release
2007-04-05

A pre-release of the new PAPI-C Component technology, PAPI-C version 3.9.0, is now available for select platforms.

Read more...

SC06 PAPI BOF Presentation
2006-11-20

If you missed the PAPI BOF at this year's Supercomputing, you can catch up on what's happening with Phil Mucci's BOF presentation slides, found here: [papi-bof-sc06.pdf]


PAPI 3.5 Released
2006-11-09

The much anticipated (and much delayed) release of PAPI 3.5 is finally here. It adds support for Intel Core2Duo, and brings support for IBM Blue Gene and Cray XT3 into compatibility with the rest of the PAPI world.

Read more...

PAPI 3.2.1 Released with AIX/POWER5 Support
2005-11-23

The latest release of PAPI is a well tested stable release that includes support for AIX/POWER5 and enhanced support for Cray XT3.

Read more...

PAPI Now Available on Blue Gene
2005-09-09

A PAPI release is now available to provide support for IBM's Blue Gene / L. This release, based on the stable PAPI 2.3.4.3 core, is intended as a transitional release to provide immediate support for this important platform. Work is underway to port PAPI 3.x to Blue Gene as well.

Read more...

PAPI 3.1.0 Released
2005-08-30

A new technology release of PAPI 3 is now available.

It includes support for the POWER4, POWER5, and PowerPC970 platforms on Linux.

It also includes a number of bug fixes and enhancements.

Read more...

PAPI 3.0.8.1 Now Available
2005-03-07

A new maintenance release of PAPI 3.0 is now available.

PAPI 3.0.8.1 fixes installation problems with the utilities and their new man pages. The rest of the changes are summarized in the PAPI 3.0.8 release.

PAPI 3.0.8 addresses a number of issues of some significance to specific platforms.

For a complete description of the changes between PAPI 3.0.7 and PAPI 3.0.8, see the Release Notes


PAPI 3.0.7 Maintenance Release Now Available
2004-12-03

A new maintenance release of PAPI 3.0 is now available.

Read more...

The PAPI 3.0 Press Release
2004-12-01

The Innovative Computing Laboratory at the University of Tennessee announces the recent release of PAPI 3.0.

Read more...

Announcing PAPI 3!
2004-10-20

It's been a long time coming, but PAPI 3 is finally here.

Read more...

PAPI 3.0 gamma is here!
2004-10-04

This release will be the final release before PAPI 3.0 comes out.


Cray X1 is here!
2004-07-29

The latest PAPI 3.0.4 beta now supports the Cray X1.

Read more...

PAPI 3.0 beta 3
2004-06-11

The beta 3 release of PAPI 3 is now available for download.

Read more...

Two Installers for PAPI 3.0 beta 3 on Windows
2004-06-11

Two separate installers are now available for running PAPI on your Windows machine.

Read more...

PapiEx is now available
2004-05-04

PapiEx is a performance analysis tool designed to transparently and passively measure the hardware performance counters of an application.

Read more...

PAPI 3.0 beta 2
2004-03-11

The beta 2 release of PAPI 3 is now available for download.

Read more...

PAPI Conversion Cookbook Arrives
2003-12-17

So you'd like to upgrade your code to PAPI 3, but you're scared to take the plunge? The PAPI Conversion Cookbook is just what you need.

Read more...

IT'S TIME!
2003-11-21

The PAPI 3.0 - beta tarball has been posted to the software download section.

Read more...

WATCH THIS SPACE!
2003-11-17

Look for a tarball of the long-awaited PAPI 3.0 beta 1 release before the end of the week.

Read more...

THE PAPI CVS REPOSITORY HAS MOVED
2003-09-18

Please update your CVS/Root entries to point to the machine icl.cs.utk.edu.


AMD Opteron is in the latest 2.x source tree.
2003-08-01

Get the latest snapshot. You need to use PerfCtr version 2.5.x with this hardware.


PAPI 2.3.4.3 is released.
2003-08-01

This release fixes a couple of typos in the power Makefiles *Ok laugh*, and makes sure PAPI is shutdown in tests which is important for all those using Alpha-DADD. Download the release at: PAPI 2.3.4.3.


OK, so we introduced a bug in multiplex.c that keeps it from compiling for POWER4 64-bit.
2003-05-13

It's fixed in PAPI 2.3.4.2. Go ahead and snicker. We can take it.


IBM POWER4 Users: If you want to use PAPI with 64-bit codes, download PAPI 2.3.4.1.
2003-05-09

Stop snickering. The only change in this tarball from PAPI 2.3.4 is 64-bit support on POWER 4. If that's not you, you can safely ignore this release.


PAPI 2.3.4 is released.
2003-04-14

This release fixes several bugs with Makefiles, multiplex support, locking, and other bug fixes. There is also better Pentium 4 support, for full details look at the HISTORY.txt file. See the software archive page for more details.


ICL joined APART.
2003-03-17

APART is a network of researchers and vendors interested in performance technology and tools. See the APART web page for details.


PAPI 2.3.3 is released.
2003-03-15

This version fixes various bugs and adds perfctr-2.4.5 support. This should add support for hyper-threading but has not been tested yet. See the software archive page for details.


PAPI 2.3.2 is released.
2003-02-11

This version adds libpfm2.0 support, *alpha* memory extensions and hardware overflow on Itanium. Bug fixes including making profile 64 bit safe, itanium out of order values returned,Makefile problems and various other bugs. See the software archive page for details.


PAPI 2.3.1 is released.
2002-11-15

Includes support for PAPI 2.3 architectures and alpha support for Pentium 4. See the software archive page for details.



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