Latest Updates:
Page Index Toggle Pages: [1] 2 
Topic Tools
Very Hot Topic (More than 25 Replies) Install Lc0? (Read 1900 times)
fling
God Member
*****
Offline


I Love ChessPublishing!

Posts: 1541
Joined: 01/21/11
Gender: Male
Re: Install Lc0?
Reply #29 - 08/20/19 at 08:59:04
Post Tools
msiipola wrote on 08/20/19 at 06:27:09:
Ok, I shall test to change the NNchache.

My cpu: Intel(R) Core(TM) i5-8600K CPU @ 3.60GHz, 3600 Mhz, 6 cores

I'm using 5 cores for Lc0.
I assume that's better then 2?
Or doesn't/can't Lc0 use more then 2?


Nope, normally you should use 1-2 cores per GPU.
  
Back to top
 
IP Logged
 
fling
God Member
*****
Offline


I Love ChessPublishing!

Posts: 1541
Joined: 01/21/11
Gender: Male
Re: Install Lc0?
Reply #28 - 08/20/19 at 08:58:38
Post Tools
msiipola wrote on 08/20/19 at 06:39:16:
About the benchmark.

Fritz 15 has an engine benchmark function, but looks it just measures the cpu and not the engine? Have I missed something?


Haven't tried benchmarking Fritz 15. But for Lc0, here is what to normally do:
Press the Win key.
Type "cmd".
Choose the location where the .exe file is, e.g. if it is on your disk e, type "e:", followed by cd and the directory name, e.g. "cd lc0". Lastly, type "lc0.exe benchmark". SF10 works in the same manner I think.
  
Back to top
 
IP Logged
 
msiipola
Junior Member
**
Offline



Posts: 93
Joined: 10/04/09
Gender: Male
Re: Install Lc0?
Reply #27 - 08/20/19 at 06:39:16
Post Tools
About the benchmark.

Fritz 15 has an engine benchmark function, but looks it just measures the cpu and not the engine? Have I missed something?
  
Back to top
 
IP Logged
 
msiipola
Junior Member
**
Offline



Posts: 93
Joined: 10/04/09
Gender: Male
Re: Install Lc0?
Reply #26 - 08/20/19 at 06:27:09
Post Tools
Ok, I shall test to change the NNchache.

My cpu: Intel(R) Core(TM) i5-8600K CPU @ 3.60GHz, 3600 Mhz, 6 cores

I'm using 5 cores for Lc0.
I assume that's better then 2?
Or doesn't/can't Lc0 use more then 2?
  
Back to top
 
IP Logged
 
fling
God Member
*****
Offline


I Love ChessPublishing!

Posts: 1541
Joined: 01/21/11
Gender: Male
Re: Install Lc0?
Reply #25 - 08/19/19 at 22:02:36
Post Tools
Sorry, posting on my phone, didn't check who posted what. The RAM issue was Leon T, not you Msiipola.
  
Back to top
 
IP Logged
 
fling
God Member
*****
Offline


I Love ChessPublishing!

Posts: 1541
Joined: 01/21/11
Gender: Male
Re: Install Lc0?
Reply #24 - 08/19/19 at 22:01:01
Post Tools
msiipola wrote on 08/19/19 at 08:40:38:
fling wrote on 08/18/19 at 17:45:56:
msiipola wrote on 08/18/19 at 15:05:18:
I have checked my installation with Lc0 support. And according to them my installation is ok.
The low kN/s number for Lc0, doesn't mean it's weak. Only an engine-engine game will show it's strength.


Yes, indeed.

In fact, I'd say your numbers seemed pretty high for your GPU, but you should use the benchmark option for both engines instead, to be able to compare with others' results.


The kN/s numbers for Lc0 decrease after some time.

I did a engine blitz (4min/2sek) tournament between Lc0 and Stockfish 10, which the SF won 5.5-4.5. I looks like the SF and Lc0 is abt equal in strength with my current setup.


The numbers vary. That is why the benchmark value is better to use for comparison.

In the setup, have you increased the NNcache? It seems better to use 10x more than the default value. Also, number of cores should likely be 2 for your setup.

As for the RAM, that is low and I think that is why you see lag after 2 hours. There are some posts about that at the Talkchess forum.
  
Back to top
 
IP Logged
 
msiipola
Junior Member
**
Offline



Posts: 93
Joined: 10/04/09
Gender: Male
Re: Install Lc0?
Reply #23 - 08/19/19 at 08:40:38
Post Tools
fling wrote on 08/18/19 at 17:45:56:
msiipola wrote on 08/18/19 at 15:05:18:
I have checked my installation with Lc0 support. And according to them my installation is ok.
The low kN/s number for Lc0, doesn't mean it's weak. Only an engine-engine game will show it's strength.


Yes, indeed.

In fact, I'd say your numbers seemed pretty high for your GPU, but you should use the benchmark option for both engines instead, to be able to compare with others' results.


The kN/s numbers for Lc0 decrease after some time.

I did a engine blitz (4min/2sek) tournament between Lc0 and Stockfish 10, which the SF won 5.5-4.5. I looks like the SF and Lc0 is abt equal in strength with my current setup.
  
Back to top
 
IP Logged
 
Leon_Trotsky
Senior Member
****
Offline


Кто был никем — тот станет
всем!

Posts: 432
Location: Barcelona, CAT
Joined: 08/11/17
Gender: Male
Re: Install Lc0?
Reply #22 - 08/18/19 at 18:41:07
Post Tools
fling wrote on 08/18/19 at 17:44:34:
How much RAM cache do you have? RAM fills up pretty quickly with Lc0, and it seems to be a well known issue.


16 GB RAM with i7 core. At least larger than previous laptop which was 8 GB RAM. Maybe now they have 32 and 64 GB RAM laptops ¿  Cheesy
  
Back to top
 
IP Logged
 
fling
God Member
*****
Offline


I Love ChessPublishing!

Posts: 1541
Joined: 01/21/11
Gender: Male
Re: Install Lc0?
Reply #21 - 08/18/19 at 17:45:56
Post Tools
msiipola wrote on 08/18/19 at 15:05:18:
I have checked my installation with Lc0 support. And according to them my installation is ok.
The low kN/s number for Lc0, doesn't mean it's weak. Only an engine-engine game will show it's strength.


Yes, indeed.

In fact, I'd say your numbers seemed pretty high for your GPU, but you should use the benchmark option for both engines instead, to be able to compare with others' results.
  
Back to top
 
IP Logged
 
fling
God Member
*****
Offline


I Love ChessPublishing!

Posts: 1541
Joined: 01/21/11
Gender: Male
Re: Install Lc0?
Reply #20 - 08/18/19 at 17:44:34
Post Tools
Leon_Trotsky wrote on 08/17/19 at 22:03:16:
As I speak, I have Leela running for two hours. It lags the whole system, that some webpages cannot even load because it seems to make my internet connection slower. Chrome and Microsoft Edge sometimes crash when Leela runs due to its lag.

I think that to not have this slowness, you need very heavy duty laptop. Perhaps even those gaming laptops or similar. Otherwise it is hard to do anything like browsing when Leela runs for long times.


How much RAM cache do you have? RAM fills up pretty quickly with Lc0, and it seems to be a well known issue.
  
Back to top
 
IP Logged
 
msiipola
Junior Member
**
Offline



Posts: 93
Joined: 10/04/09
Gender: Male
Re: Install Lc0?
Reply #19 - 08/18/19 at 15:05:18
Post Tools
I have checked my installation with Lc0 support. And according to them my installation is ok.
The low kN/s number for Lc0, doesn't mean it's weak. Only an engine-engine game will show it's strength.
  
Back to top
 
IP Logged
 
Leon_Trotsky
Senior Member
****
Offline


Кто был никем — тот станет
всем!

Posts: 432
Location: Barcelona, CAT
Joined: 08/11/17
Gender: Male
Re: Install Lc0?
Reply #18 - 08/17/19 at 22:03:16
Post Tools
As I speak, I have Leela running for two hours. It lags the whole system, that some webpages cannot even load because it seems to make my internet connection slower. Chrome and Microsoft Edge sometimes crash when Leela runs due to its lag.

I think that to not have this slowness, you need very heavy duty laptop. Perhaps even those gaming laptops or similar. Otherwise it is hard to do anything like browsing when Leela runs for long times.
  
Back to top
 
IP Logged
 
Pawnpusher
Full Member
***
Offline


I Love ChessPublishing!

Posts: 130
Joined: 01/04/18
Gender: Male
Re: Install Lc0?
Reply #17 - 08/17/19 at 10:34:28
Post Tools
I am not the best person to reply, but the short answer is that a "Monte Carlo" search like LcO uses is a different breed of animal. Each node there is based on different calculation (Monte Carlo search ) than Stockfish which is based on an evaluation that is basically written out by a human. So there are differences. People use LcO because it is a top competitor in TCEC, and many people think machine learning is the future of computer chess.
  
Back to top
 
IP Logged
 
msiipola
Junior Member
**
Offline



Posts: 93
Joined: 10/04/09
Gender: Male
Re: Install Lc0?
Reply #16 - 08/17/19 at 10:29:36
Post Tools
I have reinstalled Lc0 (v0.21.1) and compared it with Stockfish 10 64bit, with same position.

Lc0: 20 kN/s, after 1 min: Depth=15
SF: 11700 kN/s, after 1 min: Depth=32
  
Back to top
 
IP Logged
 
msiipola
Junior Member
**
Offline



Posts: 93
Joined: 10/04/09
Gender: Male
Re: Install Lc0?
Reply #15 - 08/17/19 at 10:02:27
Post Tools
I have deleted my Lc0 installation, so I can't give any figures now.

But I'm confused when you say a normal (?) ratio between Stockfish and Lc0 is 1000:1. Do you mean Stockfish should be 1000 times faster then Lc0?! If I'm correct, why should anybody use Lc0, if it's 1000 slower then Stockfish?

  
Back to top
 
IP Logged
 
Page Index Toggle Pages: [1] 2 
Topic Tools
Bookmarks: del.icio.us Digg Facebook Google Google+ Linked in reddit StumbleUpon Twitter Yahoo