Re: Algorithm Optimization

"Derek M. Jones" <derek@_NOSPAM_knosof.co.uk>
Tue, 15 Sep 2020 14:29:31 +0100

          From comp.compilers

Related articles
Algorithm Optimization rick.c.hodgin@gmail.com (Rick C. Hodgin) (2020-09-13)
Re: Algorithm Optimization elronnd@elronnd.net (Elijah Stone) (2020-09-14)
Re: Algorithm Optimization rick.c.hodgin@gmail.com (Rick C. Hodgin) (2020-09-15)
Re: Algorithm Optimization derek@_NOSPAM_knosof.co.uk (Derek M. Jones) (2020-09-15)
Re: Algorithm Optimization gah4@u.washington.edu (gah4) (2020-09-15)
Re: Algorithm Optimization mwmarkland@gmail.com (mwmarkland@gmail.com) (2020-09-16)
Re: Algorithm Optimization rick.c.hodgin@gmail.com (Rick C. Hodgin) (2020-09-16)
Re: Algorithm Optimization derek@_NOSPAM_knosof.co.uk (Derek M. Jones) (2020-09-16)
Re: Algorithm Optimization gah4@u.washington.edu (gah4) (2020-09-16)
Re: Algorithm Optimization richard.nospam@gmail.com (Richard Harnden) (2020-09-16)
[3 later articles]
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From: "Derek M. Jones" <derek@_NOSPAM_knosof.co.uk>
Newsgroups: comp.compilers
Date: Tue, 15 Sep 2020 14:29:31 +0100
Organization: virginmedia.com
References: 20-09-032
Injection-Info: gal.iecc.com; posting-host="news.iecc.com:2001:470:1f07:1126:0:676f:7373:6970"; logging-data="89600"; mail-complaints-to="abuse@iecc.com"
Keywords: optimize
Posted-Date: 15 Sep 2020 22:24:09 EDT
In-Reply-To: 20-09-032
Content-Language: en-US

Rick,


> I've been pursuing the idea of what I call algorithm optimization.  It's
> the idea that algorithms coded by individuals may not be optimal, and
> may require refactoring / re-engineering to be made optimal based on
> what's trying to be achieved.


Compilers had done to death figuring out how best to optimize what
the developer wrote. The future is optimizing what they intended to write.


> Are these all standard optimization techniques which exist, or is this
> something else I'm pursuing with the big push to have optimization take
> place at the BAlive level to revamp algorithms based on fundamental data
> types and data/flow analyses of the intent of the algorithms?


A while back I had the idea of trying to figure out what floating-point
calculation was being attempted, e.g., using a Taylor series when a Chebyshev
series would be more efficient.


http://shape-of-code.coding-guidelines.com/2010/02/28/using-numeric-literals-to-identify-application-domains/


> Note:  All of this is my original thinking this all through.  I have not
> read books or articles or papers from others on how to do things.  I
> look at the code and I think things.  I used to discuss them with Walter
> Banks, but he passed in late 2019.


I'm sorry to hear this news about Walter.


--
Derek M. Jones
blog:shape-of-code.coding-guidelines.com


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