dehardcode test string (NVIDIA#8865)

* dehardcode test string

Signed-off-by: Jimmy Zhang <[email protected]>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update nemo_utils.py

Signed-off-by: JimmyZhang12 <[email protected]>

---------

Signed-off-by: Jimmy Zhang <[email protected]>
Signed-off-by: JimmyZhang12 <[email protected]>
Co-authored-by: Jimmy Zhang <[email protected]>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Onur Yilmaz <[email protected]>

nemo/export/trt_llm/nemo_utils.py

@@ -193,7 +193,9 @@ def nemo_llm_to_model_config(
     return model_configs, tokenizer
 
 
-def to_word_list_format(word_dict: List[List[str]], tokenizer=None):
+def to_word_list_format(
+    word_dict: List[List[str]], tokenizer=None, ref_str="<extra_id_1>",
+):
     '''
     format of word_dict
         len(word_dict) should be same to batch_size
@@ -207,10 +209,9 @@ def to_word_list_format(word_dict: List[List[str]], tokenizer=None):
 
     flat_ids = []
     offsets = []
-    # We use a similar trick as in NeMo to deal with the fact that the encoding of a single word
-    # can't always be trusted. See
+    # The encoding of a single word can't always be trusted. See
     #   https://github.com/NVIDIA/NeMo/blob/bb575b72fd0be51ae10cc77d9f89ddb9e9d3b96d/nemo/collections/nlp/modules/common/text_generation_strategy.py#L229
-    ids_ref = tokenizer.encode("<extra_id_1>")
+    ids_ref = tokenizer.encode(ref_str)
     for word_dict_item in word_dict:
         item_flat_ids = []
         item_offsets = []
@@ -220,7 +221,7 @@ def to_word_list_format(word_dict: List[List[str]], tokenizer=None):
 
         words = list(csv.reader(word_dict_item))[0]
         for word in words:
-            ids = tokenizer.encode(f"<extra_id_1>{word}")
+            ids = tokenizer.encode(f"{ref_str}{word}")
             if ids[0 : len(ids_ref)] == ids_ref:
                 # It worked! We can obtain the token(s) associated to `word` by stripping the prefix tokens.
                 ids = ids[len(ids_ref) :]