Example script for running the `variant-nnue-tools` Fairy-Stockfish data generation

run_datagen

#!/usr/bin/env bash

VARIANT=khans
FSF=./fstockfish_bmi
INI=../variants_pychess.ini
NNUE=../nnue/chennis_old.nnue
OUTNAME="$VARIANT"_data_v1.bin
THREADS=20
DEPTH=6
COUNT="$(echo '1 000 000 000' | tr -d ' ')"
RMPVDIFF=200

## For running with an existing neural network:
# setoption name Use NNUE value pure
# setoption name EvalFile value $NNUE

## For running without an existing neural network:
# setoption name Use NNUE value false

## To use an opening book, add "book $BOOK" to the list of arguments.

echo ":: Generating training data for depth=$DEPTH, count=$COUNT"
echo "
uci
setoption name Use NNUE value pure
setoption name EvalFile value $NNUE
setoption name Threads value $THREADS
setoption name Hash value 2048
setoption name VariantPath value $INI
setoption nam UCI_Variant value $VARIANT
isready
generate_training_data depth $DEPTH count $COUNT random_multi_pv 4 random_multi_pv_diff $RMPVDIFF random_move_count 8 random_move_max_ply 20 write_min_ply 5 eval_limit 10000 set_recommended_uci_options data_format bin output_file_name $OUTNAME
quit
" | nice -20 $FSF