bug-gnubg
[Top][All Lists]
Advanced

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Bug-gnubg] Wrong evaluations with gcc 7 and AVX


From: Marcell Fulop
Subject: Re: [Bug-gnubg] Wrong evaluations with gcc 7 and AVX
Date: Wed, 20 Dec 2017 19:33:27 +1100

Hi Philippe,

> The issue should be fixed in the current CVS sources.

I confirm that 1.06.001 seems to be OK with SIMD on, however analyses
results are slightly off, e.g. error based FIBS rating +-5.
(1.05.000 produced without SIMD produced the exact same results as the
1.04.000 Mac version.)

With OpenGL it's broken the same way as 1.05.000.

On Sat, Dec 16, 2017 at 10:28 AM, Philippe Michel
<address@hidden> wrote:
> On Tue, Dec 12, 2017 at 10:27:59PM +0100, Philippe Michel wrote:
>
>> In a post in the "Gnubg on MacOS High Sierra", I mentionned that I had
>> noticed a problem with evaluations when built with gcc 7 and using SIMD
>> instructions but only on FreeBSD.
>>
>> My recollection was not too accurate. In fact the issue is only with
>> AVX and probably on all operating systems.
>
> The issue should be fixed in the current CVS sources.
>
> _______________________________________________
> Bug-gnubg mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/bug-gnubg



reply via email to

[Prev in Thread] Current Thread [Next in Thread]