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

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

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

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'.

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

-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.

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

likwid-5                                           09.12.2024                           LIKWID-SETFREQUENCIES(1)

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]