Spawn in itself doesn't seem to work on CUDA

Signed-off-by: Gregory Shtrasberg <[email protected]>

Author: gshtras

tests/compile/test_fusion_attn.py

@@ -65,7 +65,7 @@ def fusion_op_check(test_pass_manager: TestPassManager, quant_key: QuantKey,
 @pytest.mark.skipif(not current_platform.supports_fp8(), reason="Need FP8")
 @pytest.mark.skipif(not current_platform.is_cuda_alike(),
                     reason="Only test CUDA and ROCm")
-@create_new_process_for_each_test("spawn")
+@create_new_process_for_each_test()
 def test_attention_fusion_v0(example_prompts, monkeypatch, model: str,
                              quant_key: QuantKey, use_triton_fa: bool):
     # Clean Dynamo cache to avoid reusing other test cases
@@ -161,7 +161,7 @@ def test_attention_fusion_v0(example_prompts, monkeypatch, model: str,
 @pytest.mark.skipif(not current_platform.supports_fp8(), reason="Need FP8")
 @pytest.mark.skipif(not current_platform.is_cuda_alike(),
                     reason="Only test CUDA and ROCm")
-@create_new_process_for_each_test("spawn")
+@create_new_process_for_each_test()
 def test_attention_fusion_v1(example_prompts, monkeypatch, model: str,
                              quant_key: QuantKey, use_split_attention: bool):
     # Clean Dynamo cache to avoid reusing other test cases