Discussion of anything and everything relating to chess playing software and machines.
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syzygy
Posts: 5557Joined: Tue Feb 28, 2012 11:56 pm
Post by syzygy Sun Oct 16, 2016 3:02 pm
Jouni wrote: Yes I mean time losses as seen in this log:
Something was missing in the easy move logic. I have just fixed this.
I am not sure this completely fixes the time management issue. If you could test again that would be great.
I am afraid there is still a bug left causing a crash around move 100.
syzygy
Posts: 5557Joined: Tue Feb 28, 2012 11:56 pm
Post by syzygy Sun Oct 16, 2016 5:18 pm
syzygy wrote: I am afraid there is still a bug left causing a crash around move 100.
Which I have fixed now, hopefully.
I'd be interested in any remaining crashes (preferably including the pgn) and in hearing whether Cfish's time usage is now similar to that of Stockfish.
drj4759
Posts: 89Joined: Mon Nov 17, 2014 10:05 am
Post by drj4759 Sun Oct 16, 2016 5:26 pm
Thank you for the latest fix. I will immediately run tests for feedback.
syzygy
Posts: 5557Joined: Tue Feb 28, 2012 11:56 pm
Post by syzygy Sun Oct 16, 2016 5:45 pm
drj4759 wrote: Thank you for the latest fix. I will immediately run tests for feedback.
NUMA is only relevant if your computer has more than one CPU socket. Mine does not and yours probably does not either.
I have Wine version 1.9.18 installed here. Maybe you have an older version. You could try this (on Linux):
Code: Select all
$ wine --version
wine-1.9.18 (Staging)
$ wine cfish.exe
fixme:winediag:start_process Wine Staging 1.9.18 is a testing version containing experimental patches.
fixme:winediag:start_process Please mention your exact version when filing bug reports on winehq.org.
err:winedevice:async_create_driver failed to create driver L"Null": c0000142
Cfish 161016 64 POPCNT by T. Romstad, M. Costalba, J. Kiiski, G. Linscott
uci
id name Cfish 161016 64 POPCNT
id author T. Romstad, M. Costalba, J. Kiiski, G. Linscott
option name Debug Log File type string default <empty>
option name Contempt type spin default 0 min -100 max 100
option name Threads type spin default 1 min 1 max 128
option name Hash type spin default 16 min 1 max 1048576
option name Clear Hash type button
option name Ponder type check default false
option name MultiPV type spin default 1 min 1 max 500
option name Skill Level type spin default 20 min 0 max 20
option name Move Overhead type spin default 30 min 0 max 5000
option name Minimum Thinking Time type spin default 20 min 0 max 5000
option name Slow Mover type spin default 89 min 10 max 1000
option name nodestime type spin default 0 min 0 max 10000
option name UCI_Chess960 type check default false
option name SyzygyPath type string default <empty>
option name SyzygyProbeDepth type spin default 1 min 1 max 100
option name Syzygy50MoveRule type check default true
option name SyzygyProbeLimit type spin default 6 min 0 max 6
option name LargePages type check default true
uciok
go depth 10
info string Unable to allocate large pages for the transposition table.
info depth 1 seldepth 1 multipv 1 score cp 90 nodes 20 nps 10000 tbhits 0 time 2 pv e2e4
info depth 2 seldepth 2 multipv 1 score cp 93 nodes 47 nps 23500 tbhits 0 time 2 pv e2e4 b7b6
info depth 3 seldepth 3 multipv 1 score cp 119 nodes 133 nps 66500 tbhits 0 time 2 pv d2d4 d7d6 e2e4
info depth 4 seldepth 4 multipv 1 score cp 15 nodes 567 nps 189000 tbhits 0 time 3 pv g1f3 d7d5 d2d4 e7e6
info depth 5 seldepth 5 multipv 1 score cp 48 nodes 1362 nps 272400 tbhits 0 time 5 pv g1f3 d7d5 d2d4 e7e6 e2e3
info depth 6 seldepth 6 multipv 1 score cp 12 nodes 3003 nps 500500 tbhits 0 time 6 pv e2e4 d7d5 e4e5 d5d4 f1b5 b8c6
info depth 7 seldepth 8 multipv 1 score cp 29 nodes 5978 nps 597800 tbhits 0 time 10 pv d2d4 d7d5 c1f4 c8g4 g1f3 e7e6 b1c3
info depth 8 seldepth 8 multipv 1 score cp 27 nodes 9487 nps 729769 tbhits 0 time 13 pv e2e4 d7d5 e4d5 d8d5 g1f3 b8c6 b1c3 d5e6 d1e2
info depth 9 seldepth 14 multipv 1 score cp 50 nodes 24655 nps 1120681 tbhits 0 time 22 pv d2d4 g8f6 b1c3 d7d5 c1f4 e7e6 e2e3 b8c6 c3b5
info depth 10 seldepth 14 multipv 1 score cp 54 nodes 48826 nps 1395028 tbhits 0 time 35 pv e2e4 e7e5 d2d4 e5d4 d1d4 b8c6 d4e3 d7d6 g1f3 g8f6 b1c3
bestmove e2e4 ponder e7e5
quit
If it crashes, post the output here and I might be able to say what is wrong.
drj4759
Posts: 89Joined: Mon Nov 17, 2014 10:05 am
Post by drj4759 Sun Oct 16, 2016 6:19 pm
I have WINE 1.8. PCLinuxOS is conservative in the selection of programs to minimize instablility.
syzygy
Posts: 5557Joined: Tue Feb 28, 2012 11:56 pm
Post by syzygy Sun Oct 16, 2016 6:50 pm
Unfortunately the stack trace does not betray what part of Cfish is causing problems with Wine.
MikeB
Posts: 4889Joined: Thu Mar 09, 2006 6:34 amLocation: Pen Argyl, Pennsylvania
Post by MikeB Sun Oct 16, 2016 11:01 pm
syzygy wrote: Unfortunately the stack trace does not betray what part of Cfish is causing problems with Wine.
Here's a link to the current cfish ( today's code) for MacOS:
https://www.dropbox.com/s/5if904bksg418 ... S.zip?dl=1
No NUMA of course on the Mac.
The only change to the source required is in tt.c This section had to be commented out (and of course the trailing "#endif") :
Code: Select all
/*#ifdef __APPLE__
if (settings.large_pages) {
TT.mem = mmap(NULL, alloc_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, VM_SUPERPAGE_SIZE_2MB, 0);
if (!TT.mem)
printf("info string Unable to allocate large pages for the "
"transposition table.\n");
else
printf("info string Transposition table allocated using large pages.\n");
fflush(stdout);
}
if (!TT.mem)
TT.mem = mmap(NULL, alloc_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
#else*/
TT.mem = mmap(NULL, alloc_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
//#endif
Source can be found here:
https://github.com/syzygy1/Cfish
syzygy
Posts: 5557Joined: Tue Feb 28, 2012 11:56 pm
Post by syzygy Sun Oct 16, 2016 11:43 pm
MikeB wrote: The only change to the source required is in tt.c This section had to be commented out (and of course the trailing "#endif") :
That part does not work on MacOS X?
I cannot test it myself, but I took it probably from here:
http://stackoverflow.com/questions/3233 ... n-mac-os-x
Code: Select all
void *p = mmap((void *) 0x000200000000, 8 * 1024 * 1024,
PROT_READ | PROT_WRITE,
MAP_ANON | MAP_FIXED | MAP_PRIVATE,
VM_FLAGS_SUPERPAGE_SIZE_2MB, 0);
One thing I am clearly doing wrong: I should test against MAP_FAILED (which is (void *)-1) and not against NULL.
What is the problem on your system? Is VM_FLAGS_SUPERPAGE_SIZE_2MB not defined? Or does the program crash?
I should probably anyway test if VM_FLAGS_SUPERPAGE_SIZE_2MB is defined. And I should of course test against MAP_FAILED.
MikeB
Posts: 4889Joined: Thu Mar 09, 2006 6:34 amLocation: Pen Argyl, Pennsylvania
Post by MikeB Mon Oct 17, 2016 12:44 am
syzygy wrote: MikeB wrote: The only change to the source required is in tt.c This section had to be commented out (and of course the trailing "#endif") :
That part does not work on MacOS X?
I cannot test it myself, but I took it probably from here:
http://stackoverflow.com/questions/3233 ... n-mac-os-x
Code: Select all
void *p = mmap((void *) 0x000200000000, 8 * 1024 * 1024,
PROT_READ | PROT_WRITE,
MAP_ANON | MAP_FIXED | MAP_PRIVATE,
VM_FLAGS_SUPERPAGE_SIZE_2MB, 0);
One thing I am clearly doing wrong: I should test against MAP_FAILED (which is (void *)-1) and not against NULL.
What is the problem on your system? Is VM_FLAGS_SUPERPAGE_SIZE_2MB not defined? Or does the program crash?
I should probably anyway test if VM_FLAGS_SUPERPAGE_SIZE_2MB is defined. And I should of course test against MAP_FAILED.
Code: Select all
tt.c:96:48: error: use of undeclared identifier 'VM_SUPERPAGE_SIZE_2MB'
MAP_PRIVATE | MAP_ANONYMOUS, VM_SUPERPAGE_SIZE_2MB, 0);
syzygy
Posts: 5557Joined: Tue Feb 28, 2012 11:56 pm
Post by syzygy Mon Oct 17, 2016 1:02 am
MikeB wrote: Code: Select all
tt.c:96:48: error: use of undeclared identifier 'VM_SUPERPAGE_SIZE_2MB'
MAP_PRIVATE | MAP_ANONYMOUS, VM_SUPERPAGE_SIZE_2MB, 0);
Oops, it should have been VM_
FLAGS _SUPERPAGE_SIZE_2MB.
I'll fix this and probably anyway test for the presence of this #define.
