SCHEDULE: NOV 12-18, 2011

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New Features of the PAPI Hardware Counter Library

SESSION: Research Poster Reception

EVENT TYPE: ACM Student Research Competition Poster, Poster, Electronic Poster

TIME: 5:15PM - 7:00PM

SESSION CHAIR: Bernd Mohr

AUTHOR(S):Shirley Moore, Dan Terpstra, Vincent Weaver, Heike Jagode, James Ralph, Jack Dongarra

ROOM:WSCC North Galleria 2nd/3rd Floors

ABSTRACT:
The PAPI library has evolved from a cross-platform interface for accessing processor hardware performance counters to a component-based library for simultaneously accessing hardware monitoring information from various components of a computer system, including processors, memory controllers, network switches and interface cards, I/O subsystem, temperature sensors and power meters, and GPU counters. A GPU component is discussed. A new feature called user-defined events adds a layer of abstraction that allows users to define new metrics by combining previously defined events and machine constants and to share those metrics with other users. One current effort is the development of a PAPI interface for virtual machines, called PAPI-V, which will allow users to access processor and component hardware performance information from applications running within virtual machines. PAPI continues to be widely used by application developers and by higher level performance analysis tools such as TAU, PerfSuite, Scalasca, IPM, HPCtoolkit, Vampir, and CrayPat.

Chair/Author Details:

Bernd Mohr (Chair) - Juelich Supercomputing Centre

Shirley Moore - University of Tennessee, Knoxville

Dan Terpstra - University of Tennessee, Knoxville

Vincent Weaver - University of Tennessee, Knoxville

Heike Jagode - University of Tennessee, KnoxvilleUniversity of Tennessee, Knoxville

James Ralph - University of Tennessee, Knoxville

Jack Dongarra - University of Tennessee, Knoxville

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