Run agents in parallel

Author: klieret

.cursor/rules/style.mdc

@@ -19,6 +19,7 @@ alwaysApply: true
 11. Not every exception has to be caught. Exceptions are a good way to show problems to a user.
 12. Don't catch exceptions just to re-raise them slightly differently. This doesn't add any value.
 13. Write concise code and thing of elegant solution.
+14. When logging exceptions, always include `exc_info=True` to capture the full traceback.
 
 ## Test style
 

codeclash/tournaments/pvp.py

@@ -3,6 +3,7 @@
 """
 
 import json
+from concurrent.futures import ThreadPoolExecutor
 
 from codeclash.agents import get_agent
 from codeclash.agents.player import Player
@@ -102,8 +103,14 @@ def run_training_round(self, round_num: int) -> None:
                 f"logs/rounds/{round_num}/",
             )
 
-        for agent in self.agents:
-            self.run_agent(agent, round_num)
+        with ThreadPoolExecutor() as executor:
+            futures = [executor.submit(self.run_agent, agent, round_num) for agent in self.agents]
+            for future in futures:
+                try:
+                    future.result()
+                except Exception as e:
+                    self.logger.critical(f"Agent execution failed: {e}", exc_info=True)
+                    raise
 
         self.logger.info("Round completed.")