power

Intel® Xeon Phi™ coprocessor Power Management Pt 0: Introduction and inquiring minds

So exactly which power states exist on the Intel® Xeon Phi™ coprocessor? What happens in each of the power states? Inquiring minds want to know. And since you are, no doubt, aggressively involved in high performance computing (HPC), I am sure you want to know also.

Troubleshooting VTune(TM) Amplifier XE's Power Analysis

We have recently learned about various problems users are experiencing when attempting to use the power analysis capability of the VTune™ Amplifier XE 2013.  For example, you may see one of the following messages:

  • Error: Power Analysis is not supported on this platform.
  • Unknown symbol "cpufreq_freq_attr_scaling_available_freqs" in /var/log after building and attempting to load the power driver module

Below are some suggestions for troubleshooting problems with the power analysis feature.

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