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Performance monitoring and benchmarking suite

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Introduction

Likwid is a simple to install and use toolsuite of command line applications for performance oriented programmers. It works for Intel and AMD processors on the Linux operating system.

Build Status

It consists of:

  • likwid-topology: print thread, cache and NUMA topology
  • likwid-perfctr: configure and read out hardware performance counters on Intel and AMD processors
  • likwid-powermeter: read out RAPL Energy information and get info about Turbo mode steps
  • likwid-pin: pin your threaded application (pthread, Intel and gcc OpenMP to dedicated processors)
  • likwid-bench: Micro benchmarking platform
  • likwid-genTopoCfg: Dumps topology information to a file
  • likwid-mpirun: Wrapper to start MPI and Hybrid MPI/OpenMP applications (Supports Intel MPI, OpenMPI and MPICH)
  • likwid-perfscope: Frontend to the timeline mode of likwid-perfctr, plots live graphs of performance metrics using gnuplot
  • likwid-agent: Monitoring agent for hardware performance counters
  • likwid-memsweeper: Sweep memory of NUMA domains and evict cachelines from the last level cache
  • likwid-setFrequencies: Tool to control the CPU frequency

Download, Build and Install

You can get the releases of LIKWID at: http://ftp.fau.de/pub/likwid/

For build and installation hints see INSTALL file


Documentation

For a detailed documentation on the usage of the tools have a look at the html documentation build with doxygen. Call

make docs

or after installation, look at the man pages.

There is also a wiki at the github page: https://github.com/rrze-likwid/likwid/wiki

If you have problems or suggestions please let me know on the likwid mailing list: http://groups.google.com/group/likwid-users

or if it is bug, add an issue at: https://github.com/rrze-likwid/likwid/issues


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