chore: import upstream snapshot with attribution

2026-07-13 13:34:58 +08:00
commit a203934033
1368 changed files with 175001 additions and 0 deletions
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+# Env: 4 * A100
+# Max Length: 32K
+# GPU Memory: 4 * 50GB, Training Speed 23s/it
+PYTORCH_CUDA_ALLOC_CONF='expandable_segments:True' \
+NPROC_PER_NODE=4 \
+CUDA_VISIBLE_DEVICES=0,1,2,3 \
+megatron sft \
+    --model Qwen/Qwen2.5-7B \
+    --save_safetensors true \
+    --dataset 'ZhipuAI/LongWriter-6k' \
+    --load_from_cache_file true \
+    --split_dataset_ratio 0.01 \
+    --tensor_model_parallel_size 4 \
+    --micro_batch_size 1 \
+    --global_batch_size 8 \
+    --packing true \
+    --recompute_granularity full \
+    --recompute_method uniform \
+    --recompute_num_layers 1 \
+    --train_iters 1000 \
+    --eval_iters 50 \
+    --finetune true \
+    --cross_entropy_loss_fusion true \
+    --lr 1e-5 \
+    --lr_warmup_fraction 0.05 \
+    --min_lr 1e-6 \
+    --output_dir megatron_output/Qwen2.5-7B \
+    --eval_steps 200 \
+    --save_steps 200 \
+    --max_length 32768 \
+    --dataloader_num_workers 8 \
+    --dataset_num_proc 8 \
+    --no_save_optim true \
+    --no_save_rng true \
+    --sequence_parallel true \
+    --attention_backend flash