X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=tasks.py;h=56c2b0fd3f8f5b54eb80116ed96aa20581044279;hb=62ad2378c60cdf322c0111279bd45fbef8365fc2;hp=2f3db6a9a23797d48db39e4442006c789db879e8;hpb=49218a3e2adb19d2ec98a454e0076c3461ab1c69;p=picoclvr.git

diff --git a/tasks.py b/tasks.py
index 2f3db6a..56c2b0f 100755
--- a/tasks.py
+++ b/tasks.py
@@ -1874,6 +1874,7 @@ class Escape(Task):
         height,
         width,
         T,
+        nb_walls,
         logger=None,
         device=torch.device("cpu"),
     ):
@@ -1885,10 +1886,10 @@ class Escape(Task):
         self.width = width
 
         states, actions, rewards = escape.generate_episodes(
-            nb_train_samples + nb_test_samples, height, width, 3 * T
+            nb_train_samples + nb_test_samples, height, width, T, nb_walls
         )
         seq = escape.episodes2seq(states, actions, rewards, lookahead_delta=T)
-        seq = seq[:, seq.size(1) // 3 : 2 * seq.size(1) // 3]
+        # seq = seq[:, seq.size(1) // 3 : 2 * seq.size(1) // 3]
         self.train_input = seq[:nb_train_samples].to(self.device)
         self.test_input = seq[nb_train_samples:].to(self.device)
 
@@ -1909,6 +1910,73 @@ class Escape(Task):
     def vocabulary_size(self):
         return self.nb_codes
 
+    def thinking_autoregression(
+        self, n_epoch, model, result_dir, logger, deterministic_synthesis, nmax=1000
+    ):
+        result = self.test_input[:250].clone()
+        t = torch.arange(result.size(1), device=result.device)[None, :]
+
+        state_len = self.height * self.width
+        it_len = state_len + 3  # state / action / reward / lookahead_reward
+
+        def ar(result, ar_mask):
+            ar_mask = ar_mask.expand_as(result)
+            result *= 1 - ar_mask
+            masked_inplace_autoregression(
+                model,
+                self.batch_size,
+                result,
+                ar_mask,
+                deterministic_synthesis,
+                device=self.device,
+                progress_bar_desc=None,
+            )
+
+        # Generate iteration after iteration
+
+        for u in tqdm.tqdm(
+            range(it_len, result.size(1) - it_len + 1, it_len), desc="thinking"
+        ):
+            # Put the lookahead reward to either 0 or -1 for the
+            # current iteration, sample the next state
+            s = -1  # (torch.rand(result.size(0), device = result.device) < 0.2).long()
+            result[:, u - 1] = s + 1 + escape.first_lookahead_rewards_code
+            ar_mask = (t >= u).long() * (t < u + state_len).long()
+            ar(result, ar_mask)
+
+            # Put the lookahead reward to +1 for the current
+            # iteration, sample the action and reward
+            s = 1
+            result[:, u - 1] = s + 1 + escape.first_lookahead_rewards_code
+            ar_mask = (t >= u + state_len).long() * (t < u + state_len + 2).long()
+            ar(result, ar_mask)
+
+            # Fix the previous lookahead rewards in a consistant state
+            for v in range(0, u, it_len):
+                # Extract the rewards
+                r = result[:, range(v + state_len + 1 + it_len, u + it_len - 1, it_len)]
+                r = r - escape.first_rewards_code - 1
+                a = r.min(dim=1).values
+                b = r.max(dim=1).values
+                s = (a < 0).long() * a + (a >= 0).long() * b
+                result[:, v + state_len + 2] = (
+                    s + 1 + escape.first_lookahead_rewards_code
+                )
+
+        # Saving the generated sequences
+
+        s, a, r, lr = escape.seq2episodes(
+            result, self.height, self.width, lookahead=True
+        )
+        str = escape.episodes2str(
+            s, a, r, lookahead_rewards=lr, unicode=True, ansi_colors=True
+        )
+
+        filename = os.path.join(result_dir, f"test_thinking_seq_{n_epoch:04d}.txt")
+        with open(filename, "w") as f:
+            f.write(str)
+            logger(f"wrote {filename}")
+
     def produce_results(
         self, n_epoch, model, result_dir, logger, deterministic_synthesis, nmax=1000
     ):
@@ -1932,7 +2000,7 @@ class Escape(Task):
 
         ar_mask = (
             torch.arange(result.size(1), device=result.device)
-            > self.height * self.width + 2
+            >= self.height * self.width + 3
         ).long()[None, :]
         ar_mask = ar_mask.expand_as(result)
         result *= 1 - ar_mask  # paraaaaanoiaaaaaaa
@@ -1960,5 +2028,9 @@ class Escape(Task):
             f.write(str)
             logger(f"wrote {filename}")
 
+        self.thinking_autoregression(
+            n_epoch, model, result_dir, logger, deterministic_synthesis, nmax
+        )
+
 
 ######################################################################