Fix help

icefall/rnn_lm/compute_perplexity.py

@@ -30,11 +30,11 @@ import math
 from pathlib import Path
 
 import torch
-from rnn_lm.dataset import get_dataloader
-from rnn_lm.model import RnnLmModel
+from dataset import get_dataloader
+from model import RnnLmModel
 
-from icefall.checkpoint import load_checkpoint
-from icefall.utils import AttributeDict, load_averaged_model, setup_logger
+from icefall.checkpoint import average_checkpoints, load_checkpoint
+from icefall.utils import AttributeDict, setup_logger, str2bool
 
 
 def get_parser():
@@ -95,10 +95,19 @@ def get_parser():
     parser.add_argument(
         "--num-layers",
         type=int,
-        default=4,
+        default=3,
         help="Number of RNN layers the model",
     )
 
+    parser.add_argument(
+        "--tie-weights",
+        type=str2bool,
+        default=False,
+        help="""True to share the weights between the input embedding layer and the
+        last output linear layer
+        """,
+    )
+
     parser.add_argument(
         "--batch-size",
         type=int,
@@ -161,16 +170,22 @@ def main():
         embedding_dim=params.embedding_dim,
         hidden_dim=params.hidden_dim,
         num_layers=params.num_layers,
+        tie_weights=params.tie_weights,
     )
 
     if params.avg == 1:
         load_checkpoint(f"{params.exp_dir}/epoch-{params.epoch}.pt", model)
+        model.to(device)
     else:
-        model = load_averaged_model(
-            params.exp_dir, model, params.epoch, params.avg, device
-        )
+        start = params.epoch - params.avg + 1
+        filenames = []
+        for i in range(start, params.epoch + 1):
+            if start >= 0:
+                filenames.append(f"{params.exp_dir}/epoch-{i}.pt")
+        logging.info(f"averaging {filenames}")
+        model.to(device)
+        model.load_state_dict(average_checkpoints(filenames, device=device))
 
-    model.to(device)
     model.eval()
     num_param = sum([p.numel() for p in model.parameters()])
     num_param_requires_grad = sum(

icefall/rnn_lm/export.py

@@ -83,7 +83,7 @@ def get_parser():
         "--tie-weights",
         type=str2bool,
         default=True,
-        help="""True share the weights between the input embedding layer and the
+        help="""True to share the weights between the input embedding layer and the
         last output linear layer
         """,
     )

icefall/rnn_lm/train.py

@@ -166,7 +166,7 @@ def get_parser():
         "--tie-weights",
         type=str2bool,
         default=False,
-        help="""True share the weights between the input embedding layer and the
+        help="""True to share the weights between the input embedding layer and the
         last output linear layer
         """,
     )