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# 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