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# /// script
# requires-python = ">=3.10"
# dependencies = [
# "trl>=0.12.0",
# "peft>=0.7.0",
# "transformers>=4.45.0",
# "accelerate>=0.24.0",
# "trackio",
# "datasets",
# "bitsandbytes",
# ]
# ///
import trackio
from datasets import load_dataset
from peft import LoraConfig
from trl import SFTTrainer, SFTConfig
# Load dataset from Hub
print("Loading dataset...")
dataset = load_dataset("tobil/qmd-query-expansion-train", split="train")
print(f"Loaded {len(dataset)} examples")
# Create train/eval split
dataset_split = dataset.train_test_split(test_size=0.1, seed=42)
train_dataset = dataset_split["train"]
eval_dataset = dataset_split["test"]
print(f"Train: {len(train_dataset)}, Eval: {len(eval_dataset)}")
# Training configuration
config = SFTConfig(
output_dir="qmd-query-expansion-1.7B",
push_to_hub=True,
hub_model_id="tobil/qmd-query-expansion-1.7B",
hub_strategy="every_save",
# Training parameters - slightly smaller batch for larger model
num_train_epochs=3,
per_device_train_batch_size=2,
gradient_accumulation_steps=8,
learning_rate=2e-4,
max_length=512,
# Logging & checkpointing
logging_steps=25,
save_strategy="steps",
save_steps=200,
save_total_limit=2,
# Evaluation
eval_strategy="steps",
eval_steps=200,
# Optimization
warmup_ratio=0.1,
lr_scheduler_type="cosine",
bf16=True,
gradient_checkpointing=True, # Save memory for larger model
# Monitoring
report_to="trackio",
project="qmd-query-expansion",
run_name="qwen3-1.7B-lora",
)
# LoRA configuration
peft_config = LoraConfig(
r=16,
lora_alpha=32,
lora_dropout=0.05,
bias="none",
task_type="CAUSAL_LM",
target_modules=["q_proj", "k_proj", "v_proj", "o_proj", "gate_proj", "up_proj", "down_proj"],
)
# Initialize trainer
print("Initializing trainer with Qwen/Qwen3-1.7B...")
trainer = SFTTrainer(
model="Qwen/Qwen3-1.7B",
train_dataset=train_dataset,
eval_dataset=eval_dataset,
args=config,
peft_config=peft_config,
)
print("Starting training...")
trainer.train()
print("Pushing to Hub...")
trainer.push_to_hub()
trackio.finish()
print("Done! Model at: https://huggingface.co/tobil/qmd-query-expansion-1.7B")
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