[Buildroot] [PATCH 1/2] openblass: drop SSE_GENERIC target
Peter Korsgaard
peter at korsgaard.com
Wed Apr 11 15:46:41 UTC 2018
>>>>> "Peter" == Peter Korsgaard <peter at korsgaard.com> writes:
> Fixes #10856
> The SSE_GENERIC target fails to build with a "sgemm_kernel.o: No such file
> or directory" error. Several upstream bug reports exist for this:
> https://github.com/xianyi/OpenBLAS/issues/502
> https://github.com/xianyi/OpenBLAS/issues/685
> In both cases, upstream suggests using a different target definition
> instead. E.G. from issue 685:
> You may use NORTHWOOD on x86: make TARGET=NORTHWOOD that uses SSE2
> instructions. It's very hard to find non-SSE2 x86 CPUs today. For x86-64
> use the PRESCOTT target
> So drop the SSE_GENERIC target. The only x86_64 variant we support not
> covered by a more specific openblas target is the default variant, nocona.
> Nocona was a Xeon variant of the P4 "Prescott" architecture, so use the
> PRESCOTT openblas target:
> https://en.wikipedia.org/wiki/Xeon#Nocona_and_Irwindale
> Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
Committed to 2017.02.x, thanks.
--
Bye, Peter Korsgaard
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