fix: adjust test to only run on cuda

server/tests/models/test_flash_causal_lm.py

@@ -1,32 +1,30 @@
-import pytest
 import torch
 
 from transformers import AutoTokenizer
 
 from text_generation_server.pb import generate_pb2
-from text_generation_server.models.flash_causal_lm import (
-    FlashCausalLMBatch,
-    FlashCausalLM,
-)
-from text_generation_server.models.custom_modeling.flash_llama_modeling import (
-    FlashLlamaForCausalLM,
-)
 from text_generation_server.models.globals import set_adapter_to_index
 from text_generation_server.utils.import_utils import SYSTEM, empty_cache, synchronize
 from unittest.mock import Mock
 import base64
 
+if SYSTEM == "cuda":
+    from text_generation_server.models.flash_causal_lm import (
+        FlashCausalLMBatch,
+        FlashCausalLM,
+    )
+    from text_generation_server.models.custom_modeling.flash_llama_modeling import (
+        FlashLlamaForCausalLM,
+    )
+
 model_id = "meta-llama/Meta-Llama-3.1-8B-Instruct"
 
 set_adapter_to_index({})
 
 
-def test_flash_causal_lm_warmup():
+if SYSTEM == "cuda":
-    if SYSTEM == "cuda":
+    def test_flash_causal_lm_warmup():
         flash_causal_lm_warmup()
-    else:
-        pytest.skip("Test only runs on CUDA")
-
 
 def flash_causal_lm_warmup():
     revision = "main"

server/text_generation_server/utils/tokens.py

@@ -398,7 +398,7 @@ class HeterogeneousNextTokenChooser:
 
         next_logprobs = torch.gather(logprobs, 1, next_ids.view(-1, 1)).view(-1)
 
-        if speculate > 0:
+        if speculate and speculate > 0:
             if speculative_scores is not None:
                 # Medusa provided some scores
                 speculative_ids = Greedy()(speculative_scores)