[CI/Build] Avoid CUDA initialization (#8534)

tests/kernels/test_activation.py

@@ -7,6 +7,7 @@ from tests.kernels.utils import opcheck
 from vllm.model_executor.layers.activation import (FastGELU, GeluAndMul,
                                                    NewGELU, QuickGELU,
                                                    SiluAndMul)
+from vllm.utils import seed_everything
 
 from .allclose_default import get_default_atol, get_default_rtol
 
@@ -34,9 +35,7 @@ def test_act_and_mul(
     seed: int,
     device: str,
 ) -> None:
-    torch.random.manual_seed(seed)
-    if torch.cuda.is_available():
-        torch.cuda.manual_seed(seed)
+    seed_everything(seed)
     torch.set_default_device(device)
     x = torch.randn(num_tokens, 2 * d, dtype=dtype)
     if activation == "silu":
@@ -77,9 +76,7 @@ def test_activation(
     seed: int,
     device: str,
 ) -> None:
-    torch.random.manual_seed(seed)
-    if torch.cuda.is_available():
-        torch.cuda.manual_seed(seed)
+    seed_everything(seed)
     torch.set_default_device(device)
     x = torch.randn(num_tokens, d, dtype=dtype)
     layer = activation[0]()