Re: [Bug-gnubg] evaluation DLL for windows

[Øystein Johansen]

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David Montgomery wrote:
| Hi GnuBG gurus,

Hi David!

| At GamesGrid we're looking into upgrading the
| gnubg evaluation dll we use for our online
| robots (GGraccoon, etc.).
|
| As we usually do, we're running into some problems.

:-)

| Before we spend a lot more time on it, I wanted
| to ask if anyone knows of resources that would
| simplify the task.

I used to be able to build .dll some years ago, I guess it hasn't
changed that much.

| For example, I know that others (BlowFish, 3DFibs)
| have built Windows DLLs with the evaluation code.
| Does anyone know of any that are publicly available
| with the (near) latest version of the evaluation
| engine?

I don't know what kind of systems these programs are using. I think
BlowFish used a .dll. I'm not sure what Mike does. I havrn't heard from
him in a long time. Same with Maareyes. Where did he go?

| Does anyone know whether building the gnubg evaluation
| code is feasible under MS VC++?

Jon does builds with MSVC. Even though I have MSVC available, I still
perfere GCC/MinGW. I guess the "best" compiler is Intel though. I also
belive Jon knows something about this issue.

| I think we are using version 0.13 of the weights.
| Assuming that's true, is there some way to use the
| 0.14 weights without updating the dll?  Assuming
| that's feasible, how much of the improvement in
| playing strength would this get, relative to also
| getting the changes in the code?

At least you have to recompile. CalculateInputs have changed.

You can notice the difference in strength between 0.13 and 0.14. It's
not the huge size of the difference as the sw3->sw4 difference, but
maybe more like the the differnce from sw5->sw6 (If there's ever going
to be any releases of these numbers)

PS:
I would love to build you a dll of the evaluation routines of gnubg, but
I'm a bit buzy the next week. Can you meanwhile check which functions
you need to export?

- -Øystein
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