Abstract
The purpose of the PAPI project is to specify a standard API for accessing hardware performance counters available on most modern microprocessors. These counters exist as a small set of registers that count "events", which are occurrences of specific signals and states related to the processor's function. Monitoring these events facilitates correlation between the structure of source/object code and the efficiency of the mapping of that code to the underlying architecture. This correlation has a variety of uses in performance analysis and tuning. The PAPI project has proposed a standard set of hardware events and a standard cross-platform library interface to the underlying counter hardware. The PAPI library has been or is in the process of being implemented on all major HPC platforms. The PAPI project is developing end-user tools for dynamically selecting and displaying hardware counter performance data. PAPI support is also being incorporated into a number of third-party tools.
| Original language | English |
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| Title of host publication | SC 2000 - Proceedings of the 2000 ACM/IEEE Conference on Supercomputing |
| Publisher | Association for Computing Machinery |
| ISBN (Electronic) | 0780398025 |
| DOIs | |
| State | Published - 2000 |
| Event | 2000 ACM/IEEE Conference on Supercomputing, SC 2000 - Dallas, United States Duration: Nov 4 2000 → Nov 10 2000 |
Publication series
| Name | Proceedings of the International Conference on Supercomputing |
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| Volume | 2000-November |
Conference
| Conference | 2000 ACM/IEEE Conference on Supercomputing, SC 2000 |
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| Country/Territory | United States |
| City | Dallas |
| Period | 11/4/00 → 11/10/00 |
Funding
This work was partially supported by ERDC MSRC under prime contract #DAHC94-96-C-0002, b y ARL MSRC under prime contract #DACHC94-96-C-0010, by NSF PACI under Cooperative Agreement #ACI-9619019, and by DOE ASCI LANL under contract #04830-001-99 4R. The authors would like to thank John Levesque and Luiz DeRose at the IBM Advanced Computing Technology Center for assistance with the IBM reference implementation and integration of PAPI with SvPablo, Curtis Janssen at Sandia National Laboratory for integration with vprof and comments on PAPI profiling, Alex Poulos and Uros Prestor at SGI/Cray for assistance with the MIPS R10K/R12K implementation, and Monika ten Bruggencate at SGI/Cray for assistance with the Cray T3E implementation. The authors would also like to thank the Parallel Tools Consortium (Ptools) (http://www.ptools.org/) for sponsoring PAPI as a Ptools project.