I've done a little tourney on my phone (4×2.2 GHz Cortex-A73) at 240s/40 + 1s, so that should be comparable to CCRL Blitz list testing conditions. Hash = 64, syzygy 5-men, adjudication at 3 moves in a row at +5 on both sides (Lc0 doesn't score high easily, so that looks safe). The offset was done to match best CCRL Blitz list again. All other engine but Lc0 used only 1 CPU. Apparently, Deep Fritz 15 for android is in fact Ginkgo 2.0: http://chesstroid.blogspot.com/2017/11/ ... ngine.html . I used a set of 25 opening positions that came with Fritz 17 (Nunn2).
Lc0 settings (different from defaults) were:
NNCacheSize = 800 000
MinibatchSize = 8
MaxPrefetch = 0
LogitQ = on
MMarco wrote: ↑Thu Apr 16, 2020 4:12 pm
I've done a little tourney on my phone (4×2.2 GHz Cortex-A73) at 240s/40 + 1s, so that should be comparable to CCRL Blitz list testing conditions. Hash = 64, syzygy 5-men, adjudication at 3 moves in a row at +5 on both sides (Lc0 doesn't score high easily, so that looks safe). The offset was done to match best CCRL Blitz list again. All other engine but Lc0 used only 1 CPU. Apparently, Deep Fritz 15 for android is in fact Ginkgo 2.0: http://chesstroid.blogspot.com/2017/11/ ... ngine.html . I used a set of 25 opening positions that came with Fritz 17 (Nunn2).
Lc0 settings (different from defaults) were:
NNCacheSize = 800 000
MinibatchSize = 8
MaxPrefetch = 0
LogitQ = on
Rank Name Elo + - games score oppo. draws
1 Laser 1.7 for Android 3295 67 63 50 69% 3173 34%
2 Lc0 24.1 (591226) 4CPU 3173 31 31 200 52% 3159 42%
3 Deep Fritz 15 (Ginkgo 2.0) 3159 59 59 50 48% 3173 56%
4 Pedone 2.0 3142 61 62 50 45% 3173 42%
5 Vajolet2 2.4 3042 63 67 50 30% 3173 36%
Nice!
Why lc0 is on 4 cores?
[/quote]
I was curious to see the increase in strength going from 1 to 4 CPU. Given the low depths it reaches on my phone on 1 CPU and the time control (sometimes d=4 or d=5), it tends to blunder a lot. On 4 CPU, Lc0 seems much stronger (compared to what a regular AB engine would gain going from 1 to 4 CPU). I set the offset in my rating list to match CCRL blitz list on which Lc0 v24 591226 is rated 2988 on 1 CPU (see https://ccrl.chessdom.com/ccrl/404/cgi/ ... 226_64-bit). So there is a gain of 180 elo for LC0 4 CPU here. Well, to make sure I should redo my test on my phone on 1 CPU, but now I need my phone back!
On my laptop (ryzen 7) the results were even better for Lc0 4CPU. I'm a bit surprised. I set ratings of other engines equal to their CCRL Blitz list rating. Time control was 40/2m repeating + 1s/move. I used 100 positions from Albert Silver (the 2010 set). Again, settings for Lc0 were:
MMarco wrote: ↑Tue Apr 21, 2020 4:52 am
On my laptop (ryzen 7) the results were even better for Lc0 4CPU. I'm a bit surprised. I set ratings of other engines equal to their CCRL Blitz list rating. Time control was 40/2m repeating + 1s/move. I used 100 positions from Albert Silver (the 2010 set). Again, settings for Lc0 were:
I have a question for you, can any of these Android engines beat Shredder 8 on a regular P.C which is rated around 2800 ? The reason for asking is that I am NOT convinced the these Android are really rated over 2800
Do NOT worry and be happy, we all live a short life
MMarco wrote: ↑Tue Apr 21, 2020 4:52 am
On my laptop (ryzen 7) the results were even better for Lc0 4CPU. I'm a bit surprised. I set ratings of other engines equal to their CCRL Blitz list rating. Time control was 40/2m repeating + 1s/move. I used 100 positions from Albert Silver (the 2010 set). Again, settings for Lc0 were:
I have a question for you, can any of these Android engines beat Shredder 8 on a regular P.C which is rated around 2800 ? The reason for asking is that I am NOT convinced the these Android are really rated over 2800
I'm almost 100% sure these android engines would clobber Shredder 8. They are the same engines as on PC, they just run slower (i.e. on my phone they run around 50% of the speed of my laptop on one thread). That isn't enough to give a chance to Shredder 8 against any of the engines listed above. You could pick another android engine to have a faire match up against Shredder 8 though,, maybe Cheese 1.9, Fruit 2.1 or Rhetoric for android.
MMarco wrote: ↑Tue Apr 21, 2020 4:52 am
On my laptop (ryzen 7) the results were even better for Lc0 4CPU. I'm a bit surprised. I set ratings of other engines equal to their CCRL Blitz list rating. Time control was 40/2m repeating + 1s/move. I used 100 positions from Albert Silver (the 2010 set). Again, settings for Lc0 were:
I repeated the games with Senpai and Xiphos for Lc0 1CPU. The rating difference between 1 CPU and 4 CPU is close to 200 elo when I use Xiphos, Komodo Fritz and Senpai ratings set to their respective CCRL Blitz list rating (done with Ordo):
MMarco wrote: ↑Tue Apr 21, 2020 4:52 am
On my laptop (ryzen 7) the results were even better for Lc0 4CPU. I'm a bit surprised. I set ratings of other engines equal to their CCRL Blitz list rating. Time control was 40/2m repeating + 1s/move. I used 100 positions from Albert Silver (the 2010 set). Again, settings for Lc0 were:
I repeated the games with Senpai and Xiphos for Lc0 1CPU. The rating difference between 1 CPU and 4 CPU is close to 200 elo when I use Xiphos, Komodo Fritz and Senpai ratings set to their respective CCRL Blitz list rating (done with Ordo):
Fuddur wrote: ↑Sun Apr 26, 2020 3:02 am
Hi,
What's the cores/threads others engine using?
Or only leela is using 4 cores and others 1 core.
And where you test leela? in android device or PC.
It changed along the way of this thread, but the last results I posted were done on my PC, ryzen 7. All other engines were on 1 thread. I used the DNNL BLAS build for Leela.