[Users] Vectorization issue
Hee Il Kim
heeilkim at gmail.com
Wed Jul 7 19:20:17 CDT 2021
Hi all,
While examining different results from my colleague's, I found the
vectorization option could develop misleading results. I seldom use the
vectorization option but in the configuration file but he mixed up with
mine and others leaving:
VECTORISE = yes
VECTORISE_ALIGNED_ARRAYS = no
VECTORISE_INLINE = yes
in the config file. I found these are default config options in recent
simfactory optionlists. Instead, I used to use AVX but always adding e.g.,
"-fp-model precise" for value safeness.
I attached two figures with the vectorization on/off. For the case of no
vectorization, I tested it w/wo AVX and got the identical result.
Hee Il
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