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LIKWID-TOPOLOGY

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 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.

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 Roehl <thomas DOT roehl AT googlemail DOT com>.

BUGS

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

SEE ALSO

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

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