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Should the number of OpenBLAS threads be limited by the number of big cores on big.LITTLE systems? #3

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psyhtest opened this issue Sep 10, 2016 · 0 comments
Open

Should the number of OpenBLAS threads be limited by the number of big cores on big.LITTLE systems? #3

psyhtest opened this issue Sep 10, 2016 · 0 comments
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@psyhtest
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On Odroid-XU3 with 4 "big" Cortex-A15 cores and 4 "LITTLE" Cortex-A7 cores, OpenBLAS configures itself with the maximum number of threads equal to the total number of cores, i.e. 8 (-DMAX_CPU_NUMBER=8). I'd say it's probably better to configure OpenBLAS to limit the maximum threads to the number of big cores only. Any thoughts?
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