Rahul Nabar wrote: > On Wed, Aug 12, 2009 at 1:06 PM, Craig Tierney<craig.tier...@noaa.gov> wrote: >> I read there are several different tools to manage the CPU frequency. >> If you are using Centos/Redhat try: >> >> cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors >> >> Does it list any? If not, that might be why cpufreq-info can't >> find anything. > > Thanks again Craig! > > cat: /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors: > No such file or directory > > But I distinctly remember several "power performance " options being > listed in the BIOS. It is funny that the governors aren't listed. I am > not sure how I can fix this. > > On my older AMD Barcelonas I am used to setting the governor to > "performance" and that way it then does not drop its frequency ever. >
We have ours set to performance and then copy the setting from scaling_max_freq to scaling_min_freq to make sure the speed is set right. When everything works we will play with modifying that in the prolog/epilog of the batch system to try and reduce power consumption during idle time. Craig -- Craig Tierney (craig.tier...@noaa.gov) _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
