diff --git a/tools/caption/caption_llama3.py b/tools/caption/caption_llama3.py
index 6e79596..f463c52 100644
--- a/tools/caption/caption_llama3.py
+++ b/tools/caption/caption_llama3.py
@@ -207,6 +207,24 @@ def main(args):
             row = batch[idx]
             writer.writerow([*row, keywords])
     dist.barrier()
+    
+    if dist.get_rank() == 0:
+        print("All ranks are finished. Collating the processed data to {}".format(output_file))
+        import pandas as pd
+        csv_files = [os.path.splitext(args.input)[0] + f"_rank{i}" + "_llama3.csv" for i in range(dist.get_world_size())]
+        # List to hold DataFrames
+        dataframes = []
+        # Read each CSV into a DataFrame and append to list
+        for file in csv_files:
+            df = pd.read_csv(file)
+            dataframes.append(df)
+        # Concatenate all DataFrames
+        combined_df = pd.concat(dataframes, ignore_index=True)
+
+        collated_file = os.path.splitext(args.input)[0] + "_llama3.csv"        
+        # Save the combined DataFrame to a new CSV file
+        combined_df.to_csv(collated_file, index=False)
+        print("Collated data saved to {}".format(collated_file))
     # terminate distributed env
     dist.destroy_process_group()