[oi-dev] SIMD support

[Toomas Soome]

> On 15. Feb 2024, at 18:25, Marcel Telka <marcel at telka.sk> wrote:
> 
> On Thu, Feb 15, 2024 at 05:09:12PM +0100, Marcel Telka wrote:
>> On Thu, Feb 15, 2024 at 06:01:16PM +0200, Toomas Soome via oi-dev wrote:
>>> 
>>> 
>>>> On 15. Feb 2024, at 17:47, Marcel Telka <marcel at telka.sk> wrote:
>>>> 
>>>> Hi,
>>>> 
>>>> There[1] is this comment:
>>>> 
>>>> # We cannot build sbcl on our build server because it lacks SIMD support.
>>>> 
>>>> 
>>>> How can I check a machine does have SIMD support?
>>>> 
>>>> 
>>>> Thank you.
>>>> 
>>> 
>>> $ isainfo -v
>>> 64-bit amd64 applications
>>>        fsgsbase rdseed adx avx2 fma bmi2 bmi1 rdrand f16c vmx avx xsave 
>>>        pclmulqdq aes movbe sse4.2 sse4.1 ssse3 amd_lzcnt popcnt tscp cx16 
>>>        sse3 sse2 sse fxsr mmx cmov amd_sysc cx8 tsc fpu 
>>> 32-bit i386 applications
>>>        rdseed adx avx2 fma bmi2 bmi1 rdrand f16c vmx avx xsave pclmulqdq 
>>>        aes movbe sse4.2 sse4.1 ssse3 amd_lzcnt popcnt tscp ahf cx16 sse3 
>>>        sse2 sse fxsr mmx cmov sep cx8 tsc fpu 
>> 
>> There is no 'simd' in your output.  Does it mean you do not have simd
>> support?
> 
> The initial comment I was referring to is misleading.  It should say
> AVX2 instead of SIMD.
> 

Well, yes, AVX is part of SIMD (SSE), and yes, AVX2 is listed as well:)

rgds,
toomas

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