Caffe Install requires a Math library. Of the 3 options, ATLAS is open source and, hence, the default. Installation of ATLAS was causing issues because intel_pstate governor. Governor does power management for Kernel .
To identify if, the intel_pstate is the issue, identify if the governor is intel_pstate.
- cpufreq-info will show the governor.
- If intel_pstate is shown as the governor, disable intel_pstate.