[CI][Bugfix] Relax stable-audio layerwise offload determinism tolerance to 1e-2 (#3371)

Signed-off-by: Yueqian Lin <linyueqian@outlook.com>

tests/e2e/offline_inference/test_diffusion_layerwise_offload.py

@@ -98,7 +98,10 @@ def test_layerwise_offload_diffusion_model(model_name: str):
     if model_name == "stabilityai/stable-audio-open-1.0":
         audio_offload = output_offload[0].request_output.multimodal_output.get("audio")
         audio_no_offload = output_no_offload[0].request_output.multimodal_output.get("audio")
-        check_audio_determinism(audio_offload, audio_no_offload, atol=1e-3)
+        # Match the sibling cpu-offload test's tolerance: layerwise offload moves
+        # blocks across the PCIe bus on a side stream, which can perturb cuBLAS
+        # algorithm selection and produce ~ULP-level drift larger than 1e-3.
+        check_audio_determinism(audio_offload, audio_no_offload, atol=1e-2)
 
     is_rocm = torch.version.hip is not None
     platform = "rocm" if is_rocm else "cuda"