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Introduction
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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.
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
See INSTALL for installation hints.
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Documentation
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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/
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