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dataset.toml

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+[general]
+shuffle_caption = false
+caption_extension = '.txt'
+keep_tokens = 1
+
+[[datasets]]
+resolution = 512
+batch_size = 1
+keep_tokens = 1
+
+  [[datasets.subsets]]
+  image_dir = '/app/fluxgym/datasets/flux1dev-pitting-lora-rk16-random'
+  class_tokens = 'pitting defect on galvanized steel, irregular pitted surface, rough grainy texture, dark pits, subtle metallic sheen, close-up industrial inspection photo, shallow depth of field, low contrast, dim lighting, shadowed edges, horizontal striations'
+  num_repeats = 1

sample_prompts.txt

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+pitting defect on galvanized steel, irregular pitted surface, rough grainy texture, dark pits, subtle metallic sheen, close-up industrial inspection photo, shallow depth of field, low contrast, dim lighting, shadowed edges, horizontal striations
+small pitting defect on galvanized steel, irregular pitted surface, rough grainy texture, dark pits, subtle metallic sheen, close-up industrial inspection photo, shallow depth of field, low contrast, dim lighting, shadowed edges, horizontal striations
+medium-size pitting defect on galvanized steel, irregular pitted surface, rough grainy texture, dark pits, subtle metallic sheen, close-up industrial inspection photo, shallow depth of field, low contrast, dim lighting, shadowed edges, horizontal striations
+large pitting defect on galvanized steel, irregular pitted surface, rough grainy texture, dark pits, subtle metallic sheen, close-up industrial inspection photo, shallow depth of field, low contrast, dim lighting, shadowed edges, horizontal striations

train.sh

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+accelerate launch \
+  --mixed_precision bf16 \
+  --num_cpu_threads_per_process 1 \
+  sd-scripts/flux_train_network.py \
+  --pretrained_model_name_or_path "/app/fluxgym/models/unet/flux1-dev.sft" \
+  --clip_l "/app/fluxgym/models/clip/clip_l.safetensors" \
+  --t5xxl "/app/fluxgym/models/clip/t5xxl_fp16.safetensors" \
+  --ae "/app/fluxgym/models/vae/ae.sft" \
+  --cache_latents_to_disk \
+  --save_model_as safetensors \
+  --sdpa --persistent_data_loader_workers \
+  --max_data_loader_n_workers 8 \
+  --seed 42 \
+  --gradient_checkpointing \
+  --mixed_precision bf16 \
+  --save_precision bf16 \
+  --network_module networks.lora_flux \
+  --network_dim 16 \
+  --optimizer_type adamw8bit \--sample_prompts="/app/fluxgym/outputs/flux1dev-pitting-lora-rk16-random/sample_prompts.txt" --sample_every_n_steps="1000" \
+  --learning_rate 8e-4 \
+  --cache_text_encoder_outputs \
+  --cache_text_encoder_outputs_to_disk \
+  --fp8_base \
+  --highvram \
+  --max_train_epochs 20 \
+  --save_every_n_epochs 10 \
+  --dataset_config "/app/fluxgym/outputs/flux1dev-pitting-lora-rk16-random/dataset.toml" \
+  --output_dir "/app/fluxgym/outputs/flux1dev-pitting-lora-rk16-random" \
+  --output_name flux1dev-pitting-lora-rk16-random \
+  --timestep_sampling shift \
+  --discrete_flow_shift 3.1582 \
+  --model_prediction_type raw \
+  --guidance_scale 1 \
+  --loss_type l2 \