Updated likwid setFrequencies (markdown) authored by Thomas Gruber's avatar Thomas Gruber
...@@ -90,7 +90,7 @@ Some Intel CPUs provide the possibility to change the Uncore frequency. You can ...@@ -90,7 +90,7 @@ Some Intel CPUs provide the possibility to change the Uncore frequency. You can
### Resetting frequencies ### Resetting frequencies
Starting with LIKWID 4.3.2, it is possible to reset the CPU and Uncore frequencies to its full range to return to a defined state. There are different switches for CPU frequencies (`-reset`) and Uncore frequencies (`-ureset`): Starting with LIKWID 4.3.2, it is possible to reset the CPU and Uncore frequencies to its full range to return to a defined state. There are different switches for CPU frequencies (`-reset`) and Uncore frequencies (`-ureset`):
- `-reset`: Change CPU frequencies to its minimal and maximal frequencies. If not specified, the turbo is deactivated and the maximum non-turbo frequency selected. The turbo reset setting can be set with `-t <0|1>`. The governor is switched back to the last on the list of available governors (`-m`) or to the one specified (`-g <gov>`). - `-reset`: Change CPU frequencies to its minimal and maximal frequencies. If not specified, the turbo is deactivated and the maximum non-turbo frequency selected. The turbo reset setting can be set with `-t <0|1>`. For the government, LIKWID checks first for a governor `performance`, afterwards `conservative` and finally falls back to the last on the list of available governors (`-m`).
- `-ureset`: Change the Uncore frequencies to minimum (lowest available CPU frequency, first at `likwid-setFrequencies -l`) and to maximum (highest turbo frequency if only a single core is running, `C0` at `likwid-powermeter -i`) - `-ureset`: Change the Uncore frequencies to minimum (lowest available CPU frequency, first at `likwid-setFrequencies -l`) and to maximum (highest turbo frequency if only a single core is running, `C0` at `likwid-powermeter -i`)
## Configuration of the setFreq daemon ## Configuration of the setFreq daemon
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