examples/megatron/export/lora.sh

# torch_dist -> safetensors
# If you need to perform merge-lora and test precision alignment after merge-lora,
# simply set `--merge_lora true`

# You can also change `--model safetensors-path` to `--mcore_model torch-dist-path`.
# These two methods are equivalent, and mcore-bridge will handle it automatically.
CUDA_VISIBLE_DEVICES=0,1,2,3 \
NPROC_PER_NODE=4 \
megatron export \
    --model Qwen/Qwen3-30B-A3B-Instruct-2507 \
    --mcore_adapter megatron_output/Qwen3-30B-A3B-Instruct-2507/vx-xxx/checkpoint-xxx \
    --output_dir megatron_output/Qwen3-30B-A3B-Instruct-2507/vx-xxx/checkpoint-xxx-lora \
    --merge_lora false \
    --to_hf true \
    --tensor_model_parallel_size 2 \
    --expert_model_parallel_size 2 \
    --pipeline_model_parallel_size 2 \
    --test_convert_precision true

# safetensors -> torch_dist
CUDA_VISIBLE_DEVICES=0,1,2,3 \
NPROC_PER_NODE=4 \
megatron export \
    --model Qwen/Qwen3-30B-A3B-Instruct-2507 \
    --adapters megatron_output/Qwen3-30B-A3B-Instruct-2507/vx-xxx/checkpoint-xxx-lora \
    --output_dir megatron_output/Qwen3-30B-A3B-Instruct-2507/vx-xxx/checkpoint-xxx-mcore \
    --merge_lora false \
    --to_mcore true \
    --tensor_model_parallel_size 2 \
    --expert_model_parallel_size 2 \
    --pipeline_model_parallel_size 2 \
    --test_convert_precision true

# Merge-LoRA:
# torch_dist -> torch_dist
CUDA_VISIBLE_DEVICES=0,1,2,3 \
NPROC_PER_NODE=4 \
megatron export \
    --model Qwen/Qwen3-30B-A3B-Instruct-2507 \
    --mcore_adapter megatron_output/Qwen3-30B-A3B-Instruct-2507/vx-xxx/checkpoint-xxx \
    --output_dir megatron_output/Qwen3-30B-A3B-Instruct-2507/vx-xxx/checkpoint-xxx-merged \
    --merge_lora true \
    --to_mcore true \
    --tensor_model_parallel_size 2 \
    --expert_model_parallel_size 2 \
    --pipeline_model_parallel_size 2