Linux port of newer versions of TogaII

[Michel]

Hi ,

I ported Toga 14b5c and Toga 142JD back to linux . See

http://emis.uhasselt.be/~webby/Toga/

I think these sources will still compile under windows. Perhaps someone can verify this.

The porting was not hard. The windows thread api and the posix thread api are more
or less equivalent.

Regards,
Michel

[krazyken]

Hey thanks! They compile fine on Mac OS X.

How do you set the number of threads? They seem to default to 2.

[Michel]

There is a line

const int NumberThreads = 2;

in search.h.

You can change it.

Regards,
Michel

[Michel]

Hello,

I now also put up a linux version ot Toga143JDbeta (downloaded from
http://computerchessengines.mylivepage. ... D-beta-.7z )
on http://emis.uhasselt.be/~webby . Again the same patch applied.

Regards,
Michel

[IanO]

Hey thanks! They compile fine on Mac OS X.

How do you set the number of threads? They seem to default to 2.

Could you stick your build of 1.4 for the Mac somewhere public? The last version for the Mac made available was 1.2b2a.

Ian

[Michel]

Could you stick your build of 1.4 for the Mac somewhere public? The last version for the Mac made available was 1.2b2a.

If you do please take the latest version from

http://alpha.uhasselt.be/Research/Algeb ... _versions/

I found a bug in the book handling code in the MP versions of Toga. This bug is
also present in the Windows versions but apparently went unnoticed.

Michel

[krazyken]

I can probably do that. Although it would be nicer if someone like Tord who has the Intel compiler did it. I'll post up something later today anyway. You want 32 or 64 bits? and how many threads? And do you have a preference for some version?

[krazyken]

Now that I've had time to work with it a bit, it seems that although these compile, they crash after a few moves when playing. I'll look into it a bit more...

[Michel]

Now that I've had time to work with it a bit, it seems that although these compile, they crash after a few moves when playing. I'll look into it a bit more...

I have heard from someone else who had the same problem. Sadly he couldn't supply any details and I don't have access to a Mac.

I am curious what "crashing" means. Whether the engine hangs or just sends incorrect information to the GUI?

Does the crash also happen if you execute the UCI commands directly in the terminal?

Does the crash also happen if the number of threads is 1?

Did you take the latest version from from http://alpha.uhasselt.be/Research/Algeb ... _versions/? There was a bug in which is some cases Toga would report a1a1 as a move making polyglot unhappy for example. It happens only on a MP version using its own book.

[krazyken]

the engine terminates. Tried with threads =1 and it does not crash. It appears to be happening while thinking about the second non-book move of the game. And yes I'm using the latest patch.

crash report:

Code: Select all

Process:         Toga2 [76014]
Path:            ./Toga2
Identifier:      Toga2
Version:         ??? (???)
Code Type:       X86 (Native)
Parent Process:  polyglotw [76013]

Date/Time:       2008-10-19 16:46:40.232 -0600
OS Version:      Mac OS X 10.5.5 (9F33)
Report Version:  6

Exception Type:  EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_PROTECTION_FAILURE at 0x00000000bcf0e694
Crashed Thread:  1

Thread 0:
0   Toga2                         	0x0000f4a7 gen_captures(list_t*, board_t const*) + 2503

Thread 1 Crashed:
0   Toga2                         	0x00019b32 see_move(int, board_t const*) + 1554
1   ???                           	0000000000 0 + 0

Thread 1 crashed with X86 Thread State (32-bit):
  eax: 0x6f3bb81e  ebx: 0x0001952f  ecx: 0x000000b6  edx: 0xffffff80
  edi: 0x00000039  esi: 0x90909090  ebp: 0x00020440  esp: 0xb00808f0
   ss: 0x0000001f  efl: 0x00010217  eip: 0x00019b32   cs: 0x00000017
   ds: 0x0000001f   es: 0x0000001f   fs: 0x0000001f   gs: 0x00000037
  cr2: 0xbcf0e694

Binary Images:
    0x1000 -    0x1ffff +Toga2 ??? (???) <68181c67370ebed68a88275266877b50> /Volumes/Ferk/Chess/ChessApps/TogaII/Toga2
0x8fe00000 - 0x8fe2da53  dyld 96.2 (???) <7af47d3b00b2268947563c7fa8c59a07> /usr/lib/dyld
0x9067a000 - 0x9067efff  libmathCommon.A.dylib ??? (???) /usr/lib/system/libmathCommon.A.dylib
0x90c3b000 - 0x90d9bff3  libSystem.B.dylib ??? (???) <a12f397abf2285077b89bd726bff5b18> /usr/lib/libSystem.B.dylib
0x97086000 - 0x9708dfe9  libgcc_s.1.dylib ??? (???) <a9ab135a5f81f6e345527df87f51bfc9> /usr/lib/libgcc_s.1.dylib
0xffff0000 - 0xffff1780  libSystem.B.dylib ??? (???) /usr/lib/libSystem.B.dylib