Software Tuning, Performance Optimization & Platform Monitoring
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Which is fast?

GHui
Novice
‎09-06-2016 08:24 PM
440 Views

Recently, I found a things. 

The computiing "a=b*c" and "a+=b*c". In the same size, which runs fast on v3?

I complied it with "icc a.c  -xAVX  -O3".

"a+=b*c" runs faster than "a=b*c", almost 10 times performance.

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