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Groups > comp.programming.threads > #2532

Re: To Melzzzzz

From Ramine <ramine@1.1>
Newsgroups comp.programming, comp.programming.threads
Subject Re: To Melzzzzz
Date 2014-06-29 10:33 -0700
Organization A noiseless patient Spider
Message-ID <lop839$ute$1@dont-email.me> (permalink)
References <longtm$bkp$1@dont-email.me> <lonsia$ea2$1@solani.org>

Cross-posted to 2 groups.

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On 6/28/2014 7:10 PM, Melzzzzz wrote:
> On Sat, 28 Jun 2014 15:51:59 -0700
> Ramine <ramine@1.1> wrote:
>
>>
>> Hello,
>>
>> I have looked at your matrix multiplication using
>> SSE2 and AVX that you have posted on assembler.x86 forum,
>> i just wanted to tell you that you don't need to write
>> it in assembler, cause GCC do auto-vectorize the floating
>> point calculation and it auto-vectorize also the Matrix
>> multiplication even at -O1 optimization...
>
> as I see it it don't....
>


I am using the newest version of tdm-gcc and auto-vectorization is 
working even at -O1 level optimization.


You can download tdb-gcc from here and try it yourself:

http://tdm-gcc.tdragon.net/




Thank you,
Amine Moulay Ramdane.







>
>   and GCC do
>> auto-vectorize beautifully since the GCC auto-vectorization
>> have  given a good results on scimark2 benchmark too.
>
> Care to share example?
>
>>
>>
>> Thank you,
>> Amine Moulay Ramdane.
>>
>>
>>
>>
>
>
>

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Thread

To Melzzzzz Ramine <ramine@1.1> - 2014-06-28 15:51 -0700
  Re: To Melzzzzz Melzzzzz <mel@zzzzz.invalid> - 2014-06-29 04:10 +0200
    Re: To Melzzzzz Ramine <ramine@1.1> - 2014-06-29 10:33 -0700
      Re: To Melzzzzz Melzzzzz <mel@zzzzz.com> - 2014-06-29 16:39 +0200
        Re: To Melzzzzz Ramine <ramine@1.1> - 2014-06-29 10:47 -0700
          Re: To Melzzzzz Melzzzzz <mel@zzzzz.com> - 2014-06-29 17:00 +0200
            Re: To Melzzzzz Ramine <ramine@1.1> - 2014-06-29 11:14 -0700
              Re: To Melzzzzz Melzzzzz <mel@zzzzz.com> - 2014-06-29 17:20 +0200
              Re: To Melzzzzz Ramine <ramine@1.1> - 2014-06-29 11:23 -0700
                Re: To Melzzzzz Melzzzzz <mel@zzzzz.com> - 2014-06-29 17:31 +0200
                Re: To Melzzzzz Ramine <ramine@1.1> - 2014-06-29 11:32 -0700
                Re: To Melzzzzz Ramine <ramine@1.1> - 2014-06-29 11:38 -0700
    Re: To Melzzzzz Ramine <ramine@1.1> - 2014-06-29 10:41 -0700
      Re: To Melzzzzz Melzzzzz <mel@zzzzz.invalid> - 2014-06-29 16:46 +0200
        Re: To Melzzzzz Ramine <ramine@1.1> - 2014-06-29 10:54 -0700

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