News for hackers. Stuff that matters.

sathvikl

what do you do? and for how many years
Re:AVX-512, what’s useful for us on Friday December 22, 2017 @08:47PM (#15992433)
Running AVX-512 on all cores will lower all core operating frequency, in order to maintain the TDP of the processor.

When you run it in isolation, there's more headroom since only one core can run at the higher freq. and use AVX512 registers.

Also the power license ensures the cores running AVX512 code runs at a lower frequency.

Make sure to guard your AVX512 code block with VZEROUPPER when exiting it

Re:On asking job candidates to code on Tuesday March 15, 2016 @10:14PM (#11294521)
which company was the one offering puzzle homework ?
Re:Git fresh: clean up your repo in one command on Thursday August 13, 2015 @04:42PM (#10057076)
How is this different from git clean -dxf .
Re:Disclosure of H/W prefetcher control on some Intel processors on Thursday October 16, 2014 @10:39PM (#8469156)
yes, since Nehalem it was not publicly disclosed. Only the BIOS writer guide had these details. The Model Specific Register address and its bit value settings were not published, not all BIOS implementations exposed the 4 h/w prefetchers. In some CPUs they stayed disabled that way which made debugging more difficult.
very very cool ! Can you point to some links that you used to learn node, backbone.. what do you use for layout design ?