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Groups > comp.programming.threads > #2534
| From | Ramine <ramine@1.1> |
|---|---|
| Newsgroups | comp.programming, comp.programming.threads |
| Subject | Re: To Melzzzzz |
| Date | 2014-06-29 10:41 -0700 |
| Organization | A noiseless patient Spider |
| Message-ID | <lop8hu$59l$1@dont-email.me> (permalink) |
| References | <longtm$bkp$1@dont-email.me> <lonsia$ea2$1@solani.org> |
Cross-posted to 2 groups.
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.... > > > and GCC do >> auto-vectorize beautifully since the GCC auto-vectorization >> have given a good results on scimark2 benchmark too. > > Care to share example? You can download the following scimark2 and compile it with the newest version of tdm-gcc with just -O1 level optimization and -S to generate the assembler code and after that look at the assembler code and you will see that it is auto-vectorizing the code: http://math.nist.gov/scimark2/ Thank you, Amine Moulay Ramdane. > >> >> >> Thank you, >> Amine Moulay Ramdane. >> >> >> >> > > >
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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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