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Introduction

Likwid is a simple to install and use toolsuite of command line applications and a library for performance oriented programmers. It works for Intel, AMD, ARMv8 and POWER9 processors on the Linux operating system. There is additional support for Nvidia and AMD GPUs. There is support for ARMv7 and POWER8/9 but there is currently no test machine in our hands to test them properly.

LIKWID Playlist (YouTube)

Build Status General LIKWID DOI

It consists of:

  • likwid-topology: print thread, cache and NUMA topology
  • likwid-perfctr: configure and read out hardware performance counters on Intel, AMD, ARM and POWER processors and Nvidia GPUs
  • 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 for CPU architectures
  • likwid-features: Print and manipulate cpu features like hardware prefetchers (x86 only)
  • likwid-genTopoCfg: Dumps topology information to a file
  • likwid-mpirun: Wrapper to start MPI and Hybrid MPI/OpenMP applications (Supports Intel MPI, OpenMPI, MPICH and SLURM)
  • likwid-perfscope: Frontend to the timeline mode of likwid-perfctr, plots live graphs of performance metrics using gnuplot
  • likwid-memsweeper: Sweep memory of NUMA domains and evict cachelines from the last level cache
  • likwid-setFrequencies: Tool to control the CPU and Uncore frequencies (x86 only)
  • likwid-sysFeatures: Tool to system settings like frequencies, powercaps and prefetchers (experimental)

For further information please take a look at the Wiki or contact us via Matrix chat LIKWID General.

Supported architectures

Intel

  • Intel Atom
  • Intel Pentium M
  • Intel Core2
  • Intel Nehalem
  • Intel NehalemEX
  • Intel Westmere
  • Intel WestmereEX
  • Intel Xeon Phi (KNC)
  • Intel Silvermont & Airmont
  • Intel Goldmont
  • Intel SandyBridge
  • Intel SandyBridge EP/EN
  • Intel IvyBridge
  • Intel IvyBridge EP/EN/EX
  • Intel Xeon Phi (KNL, KNM)
  • Intel Haswell
  • Intel Haswell EP/EN/EX
  • Intel Broadwell
  • Intel Broadwell D
  • Intel Broadwell EP
  • Intel Skylake
  • Intel Kabylake
  • Intel Coffeelake
  • Intel Skylake SP
  • Intel Cascadelake SP
  • Intel Icelake
  • Intel Icelake SP
  • Intel Tigerlake (experimental)
  • Intel SapphireRapids

AMD

  • AMD K8
  • AMD K10
  • AMD Interlagos
  • AMD Kabini
  • AMD Zen
  • AMD Zen2
  • AMD Zen3
  • AMD Zen4

ARM

  • ARMv7
  • ARMv8
  • Special support for Marvell Thunder X2
  • Fujitsu A64FX
  • ARM Neoverse N1 (AWS Graviton 2)
  • ARM Neoverse V1
  • HiSilicon TSV110
  • Apple M1 (only with Linux)

POWER (experimental)

  • IBM POWER8
  • IBM POWER9

Nvidia GPUs

AMD GPUs

Download, Build and Install

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

For build and installation hints see INSTALL file or check the build instructions page in the wiki https://github.com/RRZE-HPC/likwid/wiki/Build

For quick install:

VERSION=stable
wget https://ftp.fau.de/pub/likwid/likwid-$VERSION.tar.gz
tar -xaf likwid-$VERSION.tar.gz
cd likwid-*
vi config.mk # configure build, e.g. change installation prefix and architecture flags
make
sudo make install <