Provided by: likwid_5.1.0+dfsg1-1_amd64 bug

NAME

       likwid-setFrequencies - print and manage the clock frequency of hardware threads

SYNOPSIS

       likwid-setFrequencies  [-hvplmp]  [-c  <cpu_list>] [-g <governor>] [-f,--freq <frequency>]
       [-x,--min <min_freq>] [-y,--max <max_freq>] [-t,--turbo <0|1>] [--umin  <uncore_min_freq>]
       [--umax <uncore_max_freq>] [--reset] [--ureset]

DESCRIPTION

       likwid-setFrequencies is a command line application to set the clock frequency of hardware
       threads. Since only priviledged users are allowed to  change  the  frequency  of  hardware
       threads, the application works in combination with a daemon likwid-setFreq(1).  The daemon
       needs the suid permission bit to be set in order to manipulate  the  sysfs  entries.  With
       likwid-setFrequencies  the  clock  of  all hardware thread inside the cpu_list or affinity
       domain can be set to a specific frequency  or  governor  at  once.   likwid-setFrequencies
       works now with the cpufreq drivers 'acpi-cpufreq' and 'intel_pstate'.

OPTIONS

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

       -p     prints the current frequencies for all hardware threads

       -l     prints all configurable frequencies

       -m     prints all configurable governors

       -c <cpu_list>
              set  the  affinity  domain  where  to  set the frequencies. Common are N (Node), SX
              (Socket X), CX (Cache Group X) and MX (Memory Group X).  For  detailed  information
              about affinity domains see likwid-pin(1)

       -g <governor>
              set  the  governor  of  all  hardware  threads  inside the affinity domain. Current
              governors are ondemand, performance, turbo. Default is ondemand

       -f, --freq <frequency>
              set a  fixed  frequency  at  all  hardware  threads  inside  the  affinity  domain.
              Implicitly  sets 'userspace' governor for the hardware threads when using the acpi-
              cpufreq driver.

       -x, --min <min_freq>
              set a fixed minimal frequency at all hardware threads inside the  affinity  domain.
              Can be used in combination with a dynamic governor.

       -y, --max <max_freq>
              set  a  fixed maximal frequency at all hardware threads inside the affinity domain.
              Can be used in combination with a dynamic governor.

       -t, --turbo <0|1>
              deactivates/activates Turbo mode for the specified hardware threads.

       --umin <uncore_min_freq>
              set the minimal frequency for the  Uncore.  There  are  no  limits  available,  but
              likwid-setFrequencies  allows the available minimal CPU frequency as minimal Uncore
              frequency. Only available for Intel architectures.

       --umax <uncore_max_freq>
              set the maximal frequency for the  Uncore.  There  are  no  limits  available,  but
              likwid-setFrequencies  allows  the  available  maximal CPU frequency (with a single
              hardware thread and Turbo) as maximal Uncore frequency. Only  available  for  Intel
              architectures.

       --reset
              resets  the  hardware threads to maximal range, deactivates Turbo mode and sets the
              governor to "performance", "conservative" or the last one in the governor  list  as
              fallback

       --ureset
              resets  the  Uncore to maximal range. It uses the minimally available CPU frequency
              as minimal Uncore frequency and the  maximally  achievable  CPU  frequency  (single
              core, Turbo active) as maximal Uncore frequency.

AUTHOR

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

BUGS

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

SEE ALSO

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