... | @@ -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 |
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### Resetting frequencies
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### Resetting frequencies
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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`):
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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`):
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- `-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>`).
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- `-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`).
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- `-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`)
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- `-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`)
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## Configuration of the setFreq daemon
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## Configuration of the setFreq daemon
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