GCC Spec2017 optimization Wiki

[Toon Moene]

Over a month ago, I wrote , about SPEC2017:

> Of the 7 benchmarks that are (partly) written in Fortran, Cactus is free 
> software (LGPL'd) and the 3 geological ones (wrf, cam4 and roms) are 
> "obtainable" (need to register to get the source code). Of course, that 
> means you get "a" version of the code, not necessarily what is in the 
> SPEC benchmark, but at least it enables us to join in the analysis.
> 
> exchange2 was written by Michael Metcalf, of countless Fortran books, 
> whom I met once (when I was on the Fortran Standardization Committee). 
> He might be persuaded to give us a copy for analysis if this really is 
> an outlier in performance.

Although I still can't completely vouch for it's correctness, I have 
written a Sudoku solver (exchange2 is a form of a Sudoku solver) in 
Fortran 2018. In principle - if you can find the initial clue 
arrangement - it can solve 3x3, 4x4, 5x5, and 6x6 Sudoku's. Up til now, 
I have only been able to test it on 3x3 and 4x4 examples.

You'll find it on my web page (indicated below).

-- 
Toon Moene - e-mail: toon@moene.org - phone: +31 346 214290
Saturnushof 14, 3738 XG  Maartensdijk, The Netherlands
At home: http://moene.org/~toon/; weather: http://moene.org/~hirlam/
Progress of GNU Fortran: http://gcc.gnu.org/wiki/GFortran#news