add checkpoint key dump script

dump_checkpoint_keys.py

@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+"""Dump checkpoint key names and shapes to help understand the model structure."""
+import json
+from pathlib import Path
+from safetensors.torch import load_file
+
+CHECKPOINT_DIR = "/root/nvidia-meeting/DeepSeek-V4-Pro-NVFP4"
+
+def main():
+    cdir = Path(CHECKPOINT_DIR)
+    index_path = cdir / "model.safetensors.index.json"
+    if index_path.exists():
+        with open(index_path) as f:
+            weight_map = json.load(f).get("weight_map", {})
+        # Collect unique key prefixes for layer 0 and layer 2 (CSA)
+        for li in [0, 1, 2, 3, 60]:
+            prefix = f"model.layers.{li}."
+            keys = sorted(k for k in weight_map if k.startswith(prefix))
+            print(f"\n=== Layer {li} keys ===")
+            for k in keys:
+                print(f"  {k}")
+    else:
+        print("No index file found, loading first shard...")
+        shards = sorted(cdir.glob("model-*.safetensors"))
+        if shards:
+            data = load_file(str(shards[0]))
+            # Print layer 0 and 2 keys
+            for li in [0, 1, 2]:
+                prefix = f"model.layers.{li}."
+                keys = sorted(k for k in data if k.startswith(prefix))
+                print(f"\n=== Layer {li} keys (from {shards[0].name}) ===")
+                for k in keys:
+                    print(f"  {k}: {data[k].shape}")
+
+if __name__ == "__main__":
+    main()