Change batch size for tamil.

scripts/train_iwpt21.py

@@ -119,7 +119,6 @@ def run(_):
         --pretrained_transformer_name {utils.LANG2TRANSFORMER[lang]}
         --serialization_dir {serialization_dir}
         --cuda_device {FLAGS.cuda_device}
-        --word_batch_size 2500
         --config_path {pathlib.Path.cwd() / 'combo' / 'config.graph.template.jsonnet'}
         --notensorboard
         """
@@ -128,6 +127,11 @@ def run(_):
         if lang in {"fr", "ru"}:
             command = command + " --targets deprel,head,upostag,lemma,feats"
 
+        if lang in {"ta"}:
+            command = command + " --word_batch_size 500"
+        else:
+            command = command + " --word_batch_size 2500"
+
         utils.execute_command("".join(command.splitlines()))