NAME

       likwid-topology - print thread and cache topology

SYNOPSIS

       likwid-topology [-hvgcC] [-V level] [-o output_file]

DESCRIPTION

       likwid-topology  is  a  command line application to print the thread and cache topology on
       multicore x86, ARM and POWER processors. Used with mono  spaced  fonts  it  can  draw  the
       processor  topology  of a machine in ASCII art. Beyond topology likwid-topology determines
       the clock of a processor and prints detailed information about the caches hierarchy.  When
       compiled  with  NVIDIA_INTERFACE=true in config.mk and the CUDA/CUPTI library reachable at
       runtime, likwid-topology prints information about the Nvidia GPUs in the system.

OPTIONS

       -h, --help
              prints a help message to standard output, then exits.

       -v, --version
              prints version information to standard output, then exits.

       -V, --verbose <level>
              sets the verbosity level of LIKWID's topology backend. Possible levels range from 0
              to 3.

       -g     prints topology information in ASCII art. Best viewed with monospaced font.

       -c, --caches
              prints detailed information about cache hierarchy

       -C, --clock
              measures and output the processor clock. This involves a longer run time of likwid-
              topology.

       -o, --output <file>
              write the output  to  file  instead  of  stdout.   Likwid  applies  filter  scripts
              according  to  filename suffix.  Currently available scripts are csv. You can place
              additional filter scripts in /usr/share/likwid/filter.

AUTHOR

       Written by Thomas Gruber <thomas.roehl@googlemail.com>.

BUGS

       Report Bugs on <https://github.com/RRZE-HPC/likwid/issues>.

SEE ALSO

       likwid-perfctr(1), likwid-features(1), likwid-pin(1),