[Bugfix][ROCm] running new process using spawn method for rocm in tests. (#14810)

Signed-off-by: vllmellm <vllm.ellm@embeddedllm.com>
Signed-off-by: tjtanaa <tunjian.tan@embeddedllm.com>
Co-authored-by: TJian <tunjian.tan@embeddedllm.com>
Co-authored-by: Cyrus Leung <cyrus.tl.leung@gmail.com>

tests/entrypoints/llm/test_collective_rpc.py

@@ -4,12 +4,12 @@ import pytest
 
 from vllm import LLM
 
-from ...utils import fork_new_process_for_each_test
+from ...utils import create_new_process_for_each_test
 
 
 @pytest.mark.parametrize("tp_size", [1, 2])
 @pytest.mark.parametrize("backend", ["mp", "ray"])
-@fork_new_process_for_each_test
+@create_new_process_for_each_test()
 def test_collective_rpc(tp_size, backend):
     if tp_size == 1 and backend == "ray":
         pytest.skip("Skip duplicate test case")