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View Code? Open in Web Editor NEWA Tool for Light-weight Performance Instrumentation
License: MIT License
A Tool for Light-weight Performance Instrumentation
License: MIT License
Authors: Eric Anger, Georgia Institute of Technology Benjamin Allan, Sandia National Labs Date: 12/2014 The Lightweight Performance Instrumentation Library (lwperf) is a tool to add instrumentation to your applications. Simple API calls allow for adding metrics of interest, starting, and stopping instrumentation. lwperf supports exporting the data to CSV, Eiger, and SST/macro, and can be used to collect both execution time and hardware performance counters using PAPI. * Documentation: This code is documented in the doc subdirectory. Run 'make' to regenerate (requires pdflatex). * Build: To build using the defaults, run ./configure make Support for PAPI, Eiger, and SST/macro need to be enabled explicitly during configuration with --enable-papi, --enable-eiger, and --enable-sstmac respectively. * Install: After building, run 'make install'. * Requirements: See lwperf.pdf. Support for PAPI, Eiger, and SST/macro require each to be installed, but are not mandatory. * Parallelism: The library is thread safe assuming no lwperf_t pointers are shared between threads. * PAPI: Hardware Performance Counters: This build supports the collection of PAPI hardware performance counters during execution in addition to excution time. This allows for the creation of other performance metrics, such as power or energy. Support must be explicitly configured and PAPI must be explicitly initialized during runtime.
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