1. Es wird beim aktuellen CCC Blitztunier gegen Komodo eingesetzt.

Mit diesen Einstellungen:

Backend demux
BackendOptions
backend=cuda-fp16,multi_stream=true,threads=2,(gpu=0),(gpu=1)
CPuct 1.9775
CPuctBase 45669.0
CPuctFactor 3.973
FpuValue 0.5512
MaxPrefetch 37
MinibatchSize 512
MoveOverheadMs 1000
NNCacheSize 20000000
PolicyTemperature 1.4816
Ponder false
SmartPruningFactor 2
SmartPruningMinimumBatches 300
StrictTiming true
SyzygyPath /data/tablebases
Threads 2
TimeManager legacy
UCI_ShowMovesLeft true
UCI_ShowWDL true
VerboseMoveStats true
WeightsFile /weights/weights_run3_780977

2. Großer Sprung beim Self-Elo:

https://cdn.discordapp.com/attachments/539960268982059008/937940721976102922/unknown.png

3. Neues Optimum bei den Parametern:

**Match:** 780977 optimum 1 vs 780977 optimum 2
**LC0 version:** v0.28
**LC0 options:** --smart-pruning-factor=1 --minibatch-size=64 --cpuct-factor=3.973 --cpuct-base=45669
**Hardware:** EPYC 74F3 + A100
**Time control:** 10k npm
**Book:** book-ply8-unifen-Q-0.25-0.40.pgn
**Tablebases:** no
**Adjudication:** -resign movecount=2 score=500 twosided=true -draw movenumber=50 movecount=20 score=10
**Software:** cutechess-cli
**Comment:**
Optimum1: --cpuct=1.25 --fpu-value=0.15 --policy-softmax-temp=1.0
Optimum2: --cpuct=1.97 --fpu-value=0.55 --policy-softmax-temp=1.5

```
   # PLAYER                 :  RATING  ERROR  POINTS  PLAYED   (%)  CFS(%)    W     D    L  D(%)
   1 Lc0.780977_optimum1    :     0.0   ----  1026.0    2000    51      98  469  1114  417    56
   2 Lc0.780977_optimum2    :   -10.8    9.8   974.0    2000    49     ---  417  1114  469    56

White advantage = 146.12 +/- 5.01
Draw rate (equal opponents) = 73.42 % +/- 1.55
```

4. Neue Tests:

**Round Robin:** lc0.net.780001 vs lc0.net.780977
**LC0-version:** lc0-v0.28.2, --threads=1 --backend=cuda-fp16 
**Hardware:** RTX 2060
**Software:** cutechess-cli
**Time control:** 3000 nodes/move
**Book:** Sufi_20, sequential, color reversed
**Tablebases:** Syzygy 5-men
**Adjudication:** -draw movenumber=50 movecount=5 score=8 -resign movecount=5 score=1000
**Comment:** 

```
# PLAYER         : RATING  ERROR  POINTS  PLAYED    W    L    D  D(%)  CFS(%)
1 lc0.net.780977 :   20.0   40.0    52.5     100   21   16   63    63      84
2 lc0.net.780001 :    0.0   ----      47.5     100   16   21   63    63     --- ```

5. Optimale Parameter bei einer GPU:

**Match:** 780977 optimum 1 vs 780977 optimum 2
**LC0 version:** v0.28
**LC0 options:** --smart-pruning-factor=1 --minibatch-size=64 --cpuct-factor=3.973 --cpuct-base=45669
**Hardware:** EPYC 74F3 + A100
**Time control:** 10k npm
**Book:** book-ply8-unifen-Q-0.25-0.40.pgn
**Tablebases:** no
**Adjudication:** -resign movecount=2 score=500 twosided=true -draw movenumber=50 movecount=20 score=10
**Software:** cutechess-cli
**Comment:**
Optimum1: --cpuct=1.25 --fpu-value=0.15 --policy-softmax-temp=1.0
Optimum2: --cpuct=1.97 --fpu-value=0.55 --policy-softmax-temp=1.5

```
   # PLAYER                 :  RATING  ERROR  POINTS  PLAYED   (%)  CFS(%)    W     D    L  D(%)
   1 Lc0.780977_optimum1    :     0.0   ----  1026.0    2000    51      98  469  1114  417    56
   2 Lc0.780977_optimum2    :   -10.8    9.8   974.0    2000    49     ---  417  1114  469    56

White advantage = 146.12 +/- 5.01
Draw rate (equal opponents) = 73.42 % +/- 1.55
```
Wichtig ist auch Demux als Backend und Thread=1 sowie die o.a. optimum1 Einstellungen.

Lothar