PAPI 5.0.0 Release, AKA PAPI-V with support for Virtual Systems
The PAPI 5.0.0 release is now available for download.
This is a major release of PAPI. Parts of both the internal component and external low-level interfaces have changed. This will break your 4.4 compliant components and links to shared libraries.
Although we have tried to keep the impact of these changes minimal, we have made changes to the Application Binary Interface, the Application Programming Interface, and the Component Development Interface. A full detailed description of the changes to PAPI 5.0 can be found here:
Meanwhile here's a quick summary of changed APIs:
- PAPI_perror now behaves like its posix cousin. The API has been changed to reflect this.
- Both PAPI_perror and PAPI_strerror can now report errors from components as well as pre-defined PAPI errors.
- The data returned by PAPI_get_component_info has been cleaned up significantly. If you were using esoteric fields, they may no longer be there.
And some new APIs:
- PAPI add named event, PAPI remove named event, PAPI query named event
- PAPI get event component, PAPI enum cmp event, PAPI get component index
- PAPI disable component by by name, PAPI disable component
PAPI-V also add detection of operation inside a virtual environment and several virtual machine related components, including one to report stealtime from linux.
If you're running on a SandyBridge machine, you can use the new RAPL component to measure power consumed by the chip, and if you're running certain NVidia cards, you can use the NVML component to measure power on that card.
Oh, and if you're using SandyBridge or IvyBridge processors, good luck with counting Floating Point operations. They'll work on SandyBridge if you're careful and only count Floating Point; they won't work at all on IvyBridge.
As always, please contact us through the mailing list or User Forum if you have any questions or complaints about this release.
Copyright © 2014 The University of Tennessee. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
· Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
· Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer listed in this license in the documentation and/or other materials provided with the distribution.
· Neither the name of the copyright holders nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
This software is provided by the copyright holders and contributors "as is" and any express or implied warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose are disclaimed. in no event shall the copyright owner or contributors be liable for any direct, indirect, incidental, special, exemplary, or consequential damages (including, but not limited to, procurement of substitute goods or services; loss of use, data, or profits; or business interruption) however caused and on any theory of liability, whether in contract, strict liability, or tort (including negligence or otherwise) arising in any way out of the use of this software, even if advised of the possibility of such damage.