Upload fix_fp16_lora.py
Browse files- fix_fp16_lora.py +53 -0
fix_fp16_lora.py
ADDED
|
@@ -0,0 +1,53 @@
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1 |
+
import torch
|
| 2 |
+
from safetensors.torch import load_file, save_file
|
| 3 |
+
import os
|
| 4 |
+
|
| 5 |
+
# --- ⚙️ 在这里配置 ---
|
| 6 |
+
|
| 7 |
+
# 1. 指向你那个有问题的、旧的 LoRA 文件
|
| 8 |
+
# (就是你之前训练 Z-Image LoRA 时生成的那个)
|
| 9 |
+
OLD_LORA_FILE = "./Turbo_Booster_v1.safetensors" # 示例路径,请替换成你的
|
| 10 |
+
|
| 11 |
+
# 2. 定义新文件的保存路径和名字
|
| 12 |
+
NEW_LORA_FILE = "Turbo_Booster_v1-fp16.safetensors"
|
| 13 |
+
|
| 14 |
+
# 3. 目标精度 (fp16 兼容性最好)
|
| 15 |
+
TARGET_DTYPE = torch.float16
|
| 16 |
+
|
| 17 |
+
# --- 配置结束 ---
|
| 18 |
+
|
| 19 |
+
def fix_lora_precision():
|
| 20 |
+
if not os.path.exists(OLD_LORA_FILE):
|
| 21 |
+
print(f"❌ 错误: 找不到旧的 LoRA 文件: {OLD_LORA_FILE}")
|
| 22 |
+
return
|
| 23 |
+
|
| 24 |
+
print(f"✅ 正在从 '{OLD_LORA_FILE}' 加载权重...")
|
| 25 |
+
try:
|
| 26 |
+
state_dict = load_file(OLD_LORA_FILE)
|
| 27 |
+
print(f" - 成功加载 {len(state_dict)} 个权重张量。")
|
| 28 |
+
except Exception as e:
|
| 29 |
+
print(f"❌ 加载权重时出错: {e}")
|
| 30 |
+
return
|
| 31 |
+
|
| 32 |
+
# 检查一下第一个权重的数据类型,确认它确实是 fp32
|
| 33 |
+
first_key = next(iter(state_dict))
|
| 34 |
+
if state_dict[first_key].dtype != torch.float32:
|
| 35 |
+
print(f"⚠️ 警告: 权重似乎不是 fp32 格式 (检测到 {state_dict[first_key].dtype})。脚本仍会继续转换。")
|
| 36 |
+
|
| 37 |
+
new_state_dict = {}
|
| 38 |
+
print(f"\n🔄 正在将所有权重转换为 {TARGET_DTYPE}...")
|
| 39 |
+
|
| 40 |
+
for key, tensor in state_dict.items():
|
| 41 |
+
new_state_dict[key] = tensor.to(TARGET_DTYPE)
|
| 42 |
+
|
| 43 |
+
print(f"\n💾 正在将转换后的权重保存到 '{NEW_LORA_FILE}'...")
|
| 44 |
+
try:
|
| 45 |
+
save_file(new_state_dict, NEW_LORA_FILE)
|
| 46 |
+
print("\n✨ 修复完成!")
|
| 47 |
+
print(f" - 新的、与 fp8 兼容的 LoRA 文件已保存在: {NEW_LORA_FILE}")
|
| 48 |
+
print(" - 你现在可以把这个新文件重命名为 'pytorch_lora_weights.safetensors' 并上传更新了。")
|
| 49 |
+
except Exception as e:
|
| 50 |
+
print(f"❌ 保存新文件时出错: {e}")
|
| 51 |
+
|
| 52 |
+
if __name__ == "__main__":
|
| 53 |
+
fix_lora_precision()
|