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Re: AVX on Cygwin
- From: Achim Gratz <Stromeko at nexgo dot de>
- To: cygwin-apps at cygwin dot com
- Date: Fri, 27 Nov 2015 20:33:08 +0100
- Subject: Re: AVX on Cygwin
- Authentication-results: sourceware.org; auth=none
- References: <87mvu039rg dot fsf at Rainer dot invalid> <20151127093227 dot GA25325 at calimero dot vinschen dot de> <20151127093748 dot GA16698 at calimero dot vinschen dot de>
Corinna Vinschen writes:
>> I hope this affects 64 bit only?
I don't know if it would even be possible to run AVX code from 32bit,
but yes, the three reports so far have been from 64bit systems.
> Btw., for the time being it might be prudent to disable AVX in gmp...
There is no configure option for that when producing a fat binary. I
guess the GMP folks didn't test it on Cygwin on a system where that code
is actually used. Haswell and IvyBridge also use some AVX bits, but
apparently nothing that bugs out (or nobody has found it yet).
Regards,
Achim.
--
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