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Re: [Help-gsl] gsl_permutation_next
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From: |
Patrick Alken |
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Subject: |
Re: [Help-gsl] gsl_permutation_next |
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Date: |
Wed, 12 Apr 2017 11:44:07 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 |
Hello, thanks for working on this. I will take a look at your function
and do some testing and get back to you
On 04/11/2017 05:58 PM, Pavel Sinitcyn wrote:
> Hello everyone,
>
> I was reading the permutation module of GSL and found that a function
> "gsl_permutation_next" can be improved (you can see function
> gsl_permutation_next0
> <https://gist.github.com/pgsin/fc779f7ce7d4724221fe2dc5450e9358#file-gsl_permutation_next-test-c-L111>,
> more specifically - this line
> <https://gist.github.com/pgsin/fc779f7ce7d4724221fe2dc5450e9358#file-gsl_permutation_next-test-c-L135>
> ).
>
> I made a benchmarking on my computer (AMD Opteron(TM) Processor 6276; gcc
> -O2; gcc Ubuntu 4.8.4-2ubuntu1~14.04.3) and found a significant difference
> in the performance (result contains stdout; bencmark.pdf - visualisation).
>
> Best,
> Pavel Sinitcyn