# 2 * 60GiB
# This is just a demo for DiffusionGemma training.
# Notes:
# 1. Currently only --per_device_train_batch_size 1 is supported,
# and the response length of a single sample must be less than config.canvas_length.
# 2. --gradient_checkpointing false must be set. DiffusionGemma's encoder passes
# KV to the decoder via DynamicCache, and gradient checkpointing causes errors
# when recomputing the forward pass during backward.
# 3. For customizing the specific training loss, refer to:
# https://github.com/modelscope/ms-swift/blob/104048e374b954b4df6961f83f77392031f38fb0/swift/template/templates/gemma.py#L386-L428
CUDA_VISIBLE_DEVICES=0,1 \
NPROC_PER_NODE=2 \
swift sft \
    --model google/diffusiongemma-26B-A4B-it \
    --dataset 'sapientinc/sudoku-extreme-1k' \
    --load_from_cache_file true \
    --split_dataset_ratio 0.01 \
    --tuner_type lora \
    --torch_dtype bfloat16 \
    --per_device_train_batch_size 1 \
    --per_device_eval_batch_size 1 \
    --learning_rate 1e-4 \
    --num_train_epochs 3 \
    --loss_scale ignore_empty_think \
    --gradient_checkpointing false \
    --lora_rank 8 \
    --lora_alpha 32 \
    --target_modules all-linear \
    --freeze_vit true \
    --freeze_aligner true \
    --gradient_accumulation_steps 4 \
    --eval_steps 100 \
    --save_steps 100 \
    --save_total_limit 2 \
    --logging_steps 5 \
    --max_length 4096 \
    --output_dir output \
    --warmup_ratio 0.05 \
    --dataset_num_proc 4 \
    --deepspeed zero2 \
    --dataloader_num_workers 4

CUDA_VISIBLE_DEVICES=0 \
swift infer \
    --adapters output/vx-xxx/checkpoint-xxx \
    --load_data_args true \
    --enable_thinking false