dolfin team mailing list archive

[Johannes Ring <johannr@xxxxxxxxx>]

On Wed, Oct 17, 2012 at 6:52 AM, Anders Logg <logg@xxxxxxxxx> wrote:
> On Wed, Oct 17, 2012 at 06:38:14AM +0200, Johannes Ring wrote:
>> On Wed, Oct 17, 2012 at 6:15 AM, Anders Logg <logg@xxxxxxxxx> wrote:
>> > I'm having trouble building ATLAS. It seems to believe I have CPU
>> > throttling disabled, although I've set the CPU frequency to its
>> > maximum for all my cores and set the 'governor' to 'performance'.
>> >
>> > The commands in question are
>> >
>> >  sudo cpufreq-set -c $i -u $MAX_FREQ
>> >  sudo cpufreq-selector -g performance -c $i
>> >
>> > for each processor $i.
>> >
>> > Any ideas how to fix this?
>>
>> What is set in your
>> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor? If it is not
>> 'performance', try changing it directly instead of using cpufrequtils:
>>
>>   sudo sh -c "echo performance >
>> /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor"
>>
>> Do the same for the other CPU's.
>
> That's the strange thing. All 8 of those files already say
> 'performance'.
>
> Does it work on your machine if you run
>
>   ./dorsal.sh FEniCS/platforms/contributed/precise-hpc.platform

It looks ok for me. No errors and it is compiling now. I got "Cannot
detect CPU throttling" but I'm not sure if that's good or bad.

BTW, I commented out the part in atlas.package where you change the
frequency and governor because I already had it set to 'performance'.

Johannes