Jumbo 0.6.62 is out

[Sven]

I have just released Jumbo 0.6.64 . Versions 0.6.63 and 0.6.62 should not be used, they are crashing and/or not working reliably.

http://www.schuelebln.de/chess/jumbo

@joechess: I am not sure whether this solves your problem since I can't reproduce your "illegal instruction" error on my hardware. But I found another crash which I fixed with the new version. So could you please try again with 0.6.64 using the binary "jumbo64-0.6.64-bb-sse41.exe"?

[tpoppins]

Sven, I think compiling with -march=barcelona would solve joechess' crashes, because that's the microarchitecture of his CPU. -msse4a should work too if that's an option. The next step down is -mssse3 but that drops the POPCNT instruction.

If you're still compiling with -msse4.1 Jumbo will keep crashing on his notebook. Or did you merely forget to rename the exec?

[Sven]

Sven, I think compiling with -march=barcelona would solve joechess' crashes, because that's the microarchitecture of his CPU. -msse4a should work too if that's an option. The next step down is -mssse3 but that drops the POPCNT instruction.

If you're still compiling with -msse4.1 Jumbo will keep crashing on his notebook. Or did you merely forget to rename the exec?

Compile flag differences are as follows for the public Jumbo versions:

a) Up to Jumbo 0.6.51 there were no special compile or linker flags related to certain hardware platforms (just Windows 64 bit). As far as I understood, these binaries were working for "joechess".

b) Starting with Jumbo 0.6.62 the following flags were added to achieve a noticeable speedup and strength increase:
-flto (for all 64-bit binaries)
-msse4.2 (for "jumbo64-VERSION-bb.exe")
The "jumbo64-VERSION-bb-sse41.exe" binary is compiled without "-msse4.2" flag (but not with any "-msseXXX" flag instead). Obviously the name is misleading, the meaning is more like "before SSE 4.2".

I am not willing to provide special binaries for all sorts of special hardware. If the "sse41" binary of 0.6.64 does not work for him but the standard binary for 0.6.51 and earlier were working then the reason might be the "-flto" flag.

[joechess]

Hi Sven no still not working. Here is log file, is it failing on bookFilePath= ?

2018-11-02 10:34:47.341*1*-----------------Starting engine 1 Jumbo64-0.6.64-bb-sse41------------------
2018-11-02 10:34:47.357*1*Configured Engine 1 Type: WB2
2018-11-02 10:34:47.357*1*Engine 1 dir: C:\Users\Joe\Documents\ChessBase\Chess Engines\WB & UCI ENGINE\Jumbo-0.6.64
2018-11-02 10:34:47.357*1*Engine 1 commandline: "C:\Users\Joe\Documents\ChessBase\Chess Engines\WB & UCI ENGINE\Jumbo-0.6.64\jumbo64-0.6.64-bb-sse41.exe"
2018-11-02 10:34:47.466*1*Engine 1 ProcessID: 812
2018-11-02 10:34:47.466*1*Engine 1 Prio:32 ThreadPrio:0
2018-11-02 10:34:47.466<--1:# JumboBB 0.6.64
2018-11-02 10:34:47.466-->1:xboard
2018-11-02 10:34:47.466-->1:protover 2
2018-11-02 10:34:47.513<--1:# (c) 2016-18 by Sven Schuele, Berlin, Germany
2018-11-02 10:34:47.513<--1:#
2018-11-02 10:34:47.560<--1:feature done=0
2018-11-02 10:34:47.560-->1:accepted done
2018-11-02 10:34:47.591<--1:# new size of TT hash: 256 MB
2018-11-02 10:34:47.903<--1:# new size of Pawn hash: 32 MB
2018-11-02 10:34:47.965<--1:# rnbqkbnr
2018-11-02 10:34:47.996<--1:# pppppppp
2018-11-02 10:34:48.028<--1:# ........
2018-11-02 10:34:48.059<--1:# ........
2018-11-02 10:34:48.090<--1:# ........
2018-11-02 10:34:48.121<--1:# ........
2018-11-02 10:34:48.121<--1:# PPPPPPPP
2018-11-02 10:34:48.152<--1:# RNBQKBNR
2018-11-02 10:34:48.184<--1:#
2018-11-02 10:34:48.215<--1:# Your move:
2018-11-02 10:34:48.246<--1:feature ping=1
2018-11-02 10:34:48.246-->1:accepted ping
2018-11-02 10:34:48.277<--1:feature setboard=1
2018-11-02 10:34:48.277-->1:accepted setboard
2018-11-02 10:34:48.308<--1:feature playother=1
2018-11-02 10:34:48.308-->1:accepted playother
2018-11-02 10:34:48.308<--1:feature usermove=1
2018-11-02 10:34:48.308-->1:accepted usermove
2018-11-02 10:34:48.308<--1:feature colors=0
2018-11-02 10:34:48.308-->1:accepted colors
2018-11-02 10:34:48.340<--1:feature sigint=0
2018-11-02 10:34:48.340-->1:accepted sigint
2018-11-02 10:34:48.371<--1:feature sigterm=0
2018-11-02 10:34:48.371-->1:accepted sigterm
2018-11-02 10:34:48.402<--1:feature analyze=1
2018-11-02 10:34:48.402-->1:accepted analyze
2018-11-02 10:34:48.433<--1:feature name=0
2018-11-02 10:34:48.433-->1:accepted name
2018-11-02 10:34:48.464<--1:feature nps=0
2018-11-02 10:34:48.464-->1:accepted nps
2018-11-02 10:34:48.496<--1:feature debug=1
2018-11-02 10:34:48.496-->1:accepted debug
2018-11-02 10:34:48.527<--1:feature egt="gaviota"
2018-11-02 10:34:48.527-->1:accepted egt
2018-11-02 10:34:48.527<--1:feature smp=1
2018-11-02 10:34:48.527-->1:accepted smp
2018-11-02 10:34:48.558<--1:feature variants="normal"
2018-11-02 10:34:48.558-->1:accepted variants
2018-11-02 10:34:48.558<--1:feature option="ttHashSizeMB -spin 256 1 2048"
2018-11-02 10:34:48.558-->1:accepted option
2018-11-02 10:34:48.558<--1:feature option="pawnHashSizeMB -spin 32 1 2048"
2018-11-02 10:34:48.558-->1:accepted option
2018-11-02 10:34:48.558<--1:feature option="gtbCacheSizeMB -spin 16 0 256"
2018-11-02 10:34:48.558-->1:accepted option
2018-11-02 10:34:48.558<--1:feature option="gtbPath -path C:/gtb"
2018-11-02 10:34:48.558-->1:accepted option
2018-11-02 10:34:48.558<--1:feature option="bookFilePath -path book.bin"
2018-11-02 10:34:48.558-->1:accepted option
2018-11-02 10:34:48.558<--1:feature myname="JumboBB 0.6.64"
2018-11-02 10:34:48.558<--1:feature done=1
2018-11-02 10:34:48.558-->1:accepted done
2018-11-02 10:34:48.558-->1:option bookFilePath
2018-11-02 10:34:48.558-->1:option gtbPath
2018-11-02 10:34:48.558<--1:# setting option: bookFilePath= 2 [main] jumbo64-0.6.64-bb-sse41 812 cygwin_exception::open_stackdumpfile: Dumping stack trace to jumbo64-0.6.64-bb-sse41.exe.stackdump
2018-11-02 10:34:48.558-->1:egtpath gaviota C:\Users\Joe\Documents\ChessBase\TB\Gaviota4Men
2018-11-02 10:34:48.558-->1:cores 1
2018-11-02 10:34:48.558-->1:new
2018-11-02 10:34:48.558-->1:random
2018-11-02 10:34:48.558-->1:level 40 2 0
2018-11-02 10:34:48.558-->1:post
2018-11-02 10:34:48.558-->1:hard
2018-11-02 10:34:48.558-->1:easy
2018-11-02 10:34:48.558-->1:ping 6
2018-11-02 10:34:59.104-->1:cores 1
2018-11-02 10:34:59.104-->1:egtpath gaviota C:\Users\Joe\Documents\ChessBase\TB\Gaviota4Men

[D Sceviour]

Sven, I think compiling with -march=barcelona would solve joechess' crashes, because that's the microarchitecture of his CPU. -msse4a should work too if that's an option. The next step down is -mssse3 but that drops the POPCNT instruction.

Are you sure sse3 drops the POPCNT instruction? I did a test with sse3 and it uses the "popq" instruction.

[Sven]

Hi Sven no still not working. Here is log file, is it failing on bookFilePath= ?

Please check your PM.

[Sven]

Sven, I think compiling with -march=barcelona would solve joechess' crashes, because that's the microarchitecture of his CPU. -msse4a should work too if that's an option. The next step down is -mssse3 but that drops the POPCNT instruction.

Are you sure sse3 drops the POPCNT instruction? I did a test with sse3 and it uses the "popq" instruction.

Isn't popq about restoring registers after a subroutine call?

Anyway, to my knowledge POPCNT was introduced with SSE4.2. Since Jumbo uses the GCC intrinsic function __builtin_popcountll(), it will automatically use the POPCNT instruction if available, otherwise the substitute implementation provided by the compiler.

[D Sceviour]

Sven, I think compiling with -march=barcelona would solve joechess' crashes, because that's the microarchitecture of his CPU. -msse4a should work too if that's an option. The next step down is -mssse3 but that drops the POPCNT instruction.

Are you sure sse3 drops the POPCNT instruction? I did a test with sse3 and it uses the "popq" instruction.

Isn't popq about restoring registers after a subroutine call?

Anyway, to my knowledge POPCNT was introduced with SSE4.2. Since Jumbo uses the GCC intrinsic function __builtin_popcountll(), it will automatically use the POPCNT instruction if available, otherwise the substitute implementation provided by the compiler.

Sorry, it should have been "popcntq". The code generated for -msse3 is:

Code: Select all

_popcnt:
	pushq	%rbp
	movq	%rsp, %rbp
	subq	$16, %rsp
	movq	%rcx, 16(%rbp)
	movq	16(%rbp), %rax
/APP
 # 41 "bitboard.h" 1
	popcntq %rax, %rax
 # 0 "" 2
/NO_APP
	movq	%rax, -8(%rbp)
	movq	-8(%rbp), %rax
	addq	$16, %rsp
	popq	%rbp
	ret

I am not sure if my compiler is simply over-riding the sse3 command based on native architecture. Take it from there.

[Sven]

Hi Sven no still not working. Here is log file, is it failing on bookFilePath= ?

Please check your PM.

I sent another PM to you. I hope we are close to the solution ...

[Jamal Bubker]

Hi Sven !

Thanks for this new release !