Update app.py

app.py

@@ -78,9 +78,15 @@ def initialize_faiss():
         index = faiss.index_cpu_to_all_gpus(index)
     else:
         print("CUDA not available, using CPU.")
-    
+
+    # Save the FAISS index to the file (make sure it gets saved)
+    print(f"Saving FAISS index to {faiss_index_file}.")
+    faiss.write_index(index, faiss_index_file)
+    print(f"FAISS index saved to {faiss_index_file}.")
+
     return index
 
+# Call to initialize and save the FAISS index
 index = initialize_faiss()
 
 # Function to upload document