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Old 2017-04-18, 20:11   #1
tServo
 
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May 2009
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Default Intel AVX-512 compiler vectorization article

It's here:
http://https://www.codeproject.com/A...proved-Perform

Remember, the Xeon Phi system that AirSquirrels hosts for this forum ( thanks, David )
has this compiler and the Phi has AVX-512 registers.
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Old 2017-04-18, 20:15   #2
sdbardwick
 
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Corrected link: https://www.codeproject.com/Articles...proved-Perform
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Old 2017-04-18, 21:53   #3
ewmayer
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Quote:
Originally Posted by tServo View Post
It's here:
http://https://www.codeproject.com/A...proved-Perform

Remember, the Xeon Phi system that AirSquirrels hosts for this forum ( thanks, David )
has this compiler and the Phi has AVX-512 registers.
I find no advantage from using ICC over GCC on that system - in fact GCC gives me more reliable performance. I've also seen GCC doing lots of auto-vectorization, at least of simple snips of code which are obvious candidates for this kind of optimization.

Have not yet had an opportunity to play with the ICC advanced-performance-analysis tools - I still hold out hope those will prove useful once I complete the basic code-port/hand-optimization of my AVX2 stuff to AVX-512.
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Old 2017-04-18, 22:27   #4
Mysticial
 
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I'm gonna wait until Skylake Purley before jumping on the AVX512 train. Though based on what I know so far, I have a strong feeling that getting the right chip will require mortgaging my house.
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