Gaviota Tablebases Probing Code (v0.1.2) UPDATE

[michiguel]

Hi Miguel,

how about building a "gtb.dll" (under windows) or "libgtb.so" (under linux)?

This would reduce the size of executables and allows for future optimizations in TB access without recompiling. Just a thought.

---
Richard

If someone provide the .dll, I will consider doing the .so or Aaron could provide his. I barely use Windows and not at all for this subproject. It may not be the best approach for an engine developer, but maybe it could be good for a user. If the engine developer does not update his/her engine, the engine could improve the performance of the TB access by just updating the .so. Please correct me if I am wrong, I never had the necessity to do this. My lack of formal education in comp. sci. is showing.

Miguel

[michiguel]

I've used github.com for hosting public copies of my code, and I'm quite happy with it.

I just took a look at it, and it seems fine. So GitHub will be.

Miguel

Probing code is in GitHub.

http://github.com/michiguel/Gaviota-Tablebases

Miguel

[JVMerlino]

76 hours to generate
11 hours to compress
...and less than 2 hours to implement!

Gaviota TBs FTW!

Thanks, Miguel!!

jm

[michiguel]

76 hours to generate
11 hours to compress
...and less than 2 hours to implement!

Gaviota TBs FTW!

Thanks, Miguel!!

jm

I am glad it gave you no troubles. I put a link to Myrddin in the Gaviota TBs site. Two engines so far besides Gaviota and one GUI implemented the TBs.

Miguel

[JVMerlino]

Hi Miguel,

It's probably going to be a little while (at least a few weeks) before I publicly release a version that implements GTB, since I just released 0.83 last week. So I leave it up to you if you want to link to Myrddin on your site.

Just thought you should know.

But thanks again!

jm

[mathmoi]

Hi Miguel,

I'm currently trying Gaviota's EGTB for my engine, MatMoi.

Is there any reason why the second arguments of tbpaths_add is not of type const char* ?

Anyhow, thanks for releasing your code.

[michiguel]

Hi Miguel,

I'm currently trying Gaviota's EGTB for my engine, MatMoi.

Is there any reason why the second arguments of tbpaths_add is not of type const char* ?

Anyhow, thanks for releasing your code.

Very good point. They will be better if they are all const.
The next version will all be:

extern const char ** tbpaths_init (void);
extern const char ** tbpaths_add (const char **ps, const char *newpath);
extern const char ** tbpaths_done (const char **ps);

They are not supposed to be changed.

Miguel
PS: I still need to solve an issue brought by John Merlino with a C++ compiler and will release a maintenance update. Do not count too much on tbget_stats, it is the only function that I will change the interface (at least once more time). Changing things internally will give the chance to have different type of stats.

[mathmoi]

Hi Miguel,

Thanks for the change, it will make it easier to use them with std::string, since std::string only return pointer to const char*. In the meantime I casted away the constness with a const_cast<char *> but that is really ugly.