3 ms·
This is great and reminds me of the ATLAS BLAS[1] I would really like the authors to discuss the effects of power-saving features, for example dynamic clocking
by frozenport 11y ago
This is great and reminds me of the ATLAS BLAS[1]
I would really like the authors to discuss the effects of power-saving features, for example dynamic clocking of the CPU.
Indeed ATLAS will often fail to converge or get the wrong tuning when automatic power-tuning is not disabled. In a modern system is becoming increasingly difficult to manage concurrent power saving features, for example things like Intel's Turbo Boost or the clock on your mobile device.
[1]http://math-atlas.sourceforge.net/ http://math-atlas.sourceforge.net/
- jepler 11y agoDo you have a reference for this problem? I would love to hear more. Is it thought to be a hardware bug, like this recent snafu with arithmetic (but for which power tuning was not mentioned as contributing) http://arstechnica.com/gadgets/2016/01/intel-skylake-bug-causes-pcs-to-freeze-during-complex-workloads/ http://arstechnica.com/gadgets/2016/01/intel-skylake-bug-cau... ?
- frozenport 11y agoSo, modern ATLAS has a CPU throttling check, for example: http://stackoverflow.com/questions/14592401/atlas-install-really-need-to-get-past-cpu-throttle-check http://stackoverflow.com/questions/14592401/atlas-install-re...