Add cuda support, normalize actions

scratch/etienne/intersimple/gail_options_image.py

@@ -1,3 +1,4 @@
+# %%
 from gail.discriminator import CnnDiscriminator
 from imitation.algorithms import adversarial
 import stable_baselines3
@@ -82,11 +83,14 @@ def sample_ll(env, generator):
             done = False
 
         m = available_actions(env)
-        ch, _, _ = generator.policy.predict({'obs': torch.tensor(s).unsqueeze(0), 'mask': torch.tensor(m).unsqueeze(0)})
-        plan = list(generate_plan(env, ch))
+        ch, _, _ = generator.policy.predict({
+            'obs': torch.tensor(s).unsqueeze(0).to(generator.policy.device),
+            'mask': torch.tensor(m).unsqueeze(0).to(generator.policy.device),
+        })
+        plan = list(map(float, generate_plan(env, ch)))
 
         while not done and plan and feasible(env, plan):
-            a, plan = plan[0], plan[1:]
+            a, plan = env._normalize(plan[0]), plan[1:]
             nexts, _, done, _ = env.step(a)
             yield {
                 'obs': s,
@@ -108,14 +112,20 @@ def sample_hl(env, generator, discriminator):
             episode_start = True
 
         obs = {'obs': s, 'mask': m}
-        ch, value, log_prob = generator.policy.predict({'obs': torch.tensor(s).unsqueeze(0), 'mask': torch.tensor(m).unsqueeze(0)})
+        ch, value, log_prob = generator.policy.predict({
+            'obs': torch.tensor(s).unsqueeze(0).to(generator.policy.device),
+            'mask': torch.tensor(m).unsqueeze(0).to(generator.policy.device),
+        })
         plan = list(map(float, generate_plan(env, ch)))
         r = 0
         steps = 0
 
         while not done and plan and feasible(env, plan):
-            a, plan = plan[0], plan[1:]
-            r += discriminator.discrim_net.discriminator(torch.tensor(s).unsqueeze(0), torch.tensor([[a]]))
+            a, plan = env._normalize(plan[0]), plan[1:]
+            r += discriminator.discrim_net.discriminator(
+                torch.tensor(s).unsqueeze(0).to(discriminator.discrim_net.device()),
+                torch.tensor([[a]]).to(discriminator.discrim_net.device()),
+            )
             steps += 1
             s, _, done, _ = env.step(a)
             m = available_actions(env)
@@ -150,8 +160,8 @@ def train_generator(env, generator, discriminator, num_samples):
     for s in generator_samples[:-1]:
         generator.rollout_buffer.add(
             obs=s['obs'],
-            action=s['action'],
-            reward=s['reward'],
+            action=s['action'].cpu(),
+            reward=s['reward'].cpu(),
             episode_start=s['episode_start'],
             value=s['value'],
             log_prob=s['log_prob'],
@@ -213,38 +223,62 @@ def train(expert_data, epochs=10, expert_batch_size=32, generator_steps=2048):
     return generator
 
 # %%
+if __name__ == '__main__':
+    # %%
+    with open("data/NormalizedIntersimpleExpertMu.001_NRasterizedAgent51w36h36mppx2.pkl", "rb") as f:
+        trajectories = pickle.load(f)
+    transitions = rollout.flatten_trajectories(trajectories)
+    generator = train(transitions, epochs=2, expert_batch_size=2, generator_steps=2)
 
-with open("data/NormalizedIntersimpleExpertMu.001_NRasterizedAgent51w36h36mppx2.pkl", "rb") as f:
-    trajectories = pickle.load(f)
-transitions = rollout.flatten_trajectories(trajectories)
-generator = train(transitions, epochs=2, expert_batch_size=2, generator_steps=2)
+    generator.save(model_name)
 
-generator.save(model_name)
+    # %%
+    model = stable_baselines3.PPO.load(model_name)
 
-# %%
-model = stable_baselines3.PPO.load(model_name)
+    env = NRasterized(**env_settings)
 
-env = NRasterized(**env_settings)
+    s = env.reset()
+    done = False
+    env.render()
+    while not done:
+        m = available_actions(env)
+        ch, _, _ = generator.policy.predict({
+            'obs': torch.tensor(s).unsqueeze(0).to(generator.policy.device),
+            'mask': torch.tensor(m).unsqueeze(0).to(generator.policy.device),
+        })
+        plan = list(map(float, generate_plan(env, ch)))
 
-s = env.reset()
-done = False
-env.render()
-while not done:
-    m = available_actions(env)
-    ch, _, _ = generator.policy.predict({'obs': torch.tensor(s).unsqueeze(0), 'mask': torch.tensor(m).unsqueeze(0)})
-    plan = list(generate_plan(env, ch))
+        while not done and plan and feasible(env, plan):
+            a, plan = env._normalize(plan[0]), plan[1:]
+            s, _, done, _ = env.step(a)
+            env.render()
 
-    while not done and plan and feasible(env, plan):
-        a, plan = plan[0], plan[1:]
-        s, _, done, _ = env.step(a)
-        env.render()
-
-env.close(filestr='render/'+model_name)
+    env.close(filestr='render/'+model_name)
 
 # %% Tests
 
 def test_ll_transitions_vs_expert_data():
-    pass
+    with open("data/NormalizedIntersimpleExpertMu.001_NRasterizedAgent51w36h36mppx2.pkl", "rb") as f:
+        expert_trajectories = pickle.load(f)
+    expert_transitions = rollout.flatten_trajectories(expert_trajectories)
+
+    env = NRasterized(agent=51, width=36, height=36, m_per_px=2)
+
+    gen_transitions = list(itertools.islice(sample_ll(
+        env=NRasterized(**env_settings),
+        generator=stable_baselines3.PPO(
+            OptionsCnnPolicy,
+            OptionsEnv(env),
+            verbose=1,
+        )
+    ), 10))
+    gen_transitions = flatten_transitions(gen_transitions)
+
+    assert expert_transitions[:10].obs.shape == gen_transitions['obs'].shape
+    assert expert_transitions[:10].next_obs.shape == gen_transitions['next_obs'].shape
+    assert expert_transitions[:10].acts.shape == gen_transitions['acts'].shape
+    assert expert_transitions[:10].dones.shape == gen_transitions['dones'].shape
+
 
 def test_hl_transitions():
     pass