[rllib] Propagate dim option to deepmind wrappers (#1876)

* updates

* updates

python/ray/rllib/dqn/common/wrappers.py

@@ -14,6 +14,7 @@ def wrap_dqn(registry, env, options, random_starts):
     # Override atari default to use the deepmind wrappers.
     # TODO(ekl) this logic should be pushed to the catalog.
     if is_atari and "custom_preprocessor" not in options:
-        return wrap_deepmind(env, random_starts=random_starts)
+        return wrap_deepmind(
+            env, random_starts=random_starts, dim=options.get("dim", 80))
 
     return ModelCatalog.get_preprocessor_as_wrapper(registry, env, options)

python/ray/rllib/tuned_examples/pong-dqn.yaml

@@ -2,9 +2,6 @@
 pong-deterministic-dqn:
     env: PongDeterministic-v4
     run: DQN
-    trial_resources:
-        cpu: 1
-        gpu: 1
     stop:
         episode_reward_mean: 20
         time_total_s: 7200