[Feat]support sequence parallelism by pass for VL models (#5632)

tests/e2e/multicard/2-cards/test_sp_pass.py

@@ -0,0 +1,64 @@
+import os
+
+import pytest
+from vllm import SamplingParams
+
+from tests.e2e.conftest import VllmRunner
+from tests.e2e.model_utils import check_outputs_equal
+
+MODELS = [
+    "Qwen/Qwen3-VL-2B-Instruct",
+]
+
+
+@pytest.mark.parametrize("model", MODELS)
+def test_qwen3_vl_sp_tp2(model: str) -> None:
+    prompts = [
+        "Hello, my name is", "The capital of the United States is",
+        "The capital of France is", "The future of AI is"
+    ]
+    sampling_params = SamplingParams(max_tokens=10, temperature=0.0)
+
+    with VllmRunner(
+            model,
+            max_model_len=1024,
+            tensor_parallel_size=2,
+            compilation_config={
+                "cudagraph_capture_sizes": [2, 4],
+                "cudagraph_mode": "FULL_DECODE_ONLY",
+                "pass_config": {"enable_sp": False}
+            },
+            additional_config={"npugraph_ex_config": {"enable": False}}
+    ) as runner:
+        no_sp_outputs = runner.model.generate(prompts, sampling_params)
+
+    with VllmRunner(
+            model,
+            max_model_len=1024,
+            tensor_parallel_size=2,
+            compilation_config={
+                "cudagraph_capture_sizes": [2, 4],
+                "cudagraph_mode": "FULL_DECODE_ONLY",
+                "pass_config": {"enable_sp": True}
+            },
+            additional_config={"sp_threshold": 10, "npugraph_ex_config": {"enable": False}}
+    ) as runner:
+        sp_outputs = runner.model.generate(
+            prompts, sampling_params)
+
+    no_sp_outputs_list = []
+    for output in no_sp_outputs:
+        no_sp_outputs_list.append(
+            (output.outputs[0].index, output.outputs[0].text))
+
+    sp_outputs_list = []
+    for output in sp_outputs:
+        sp_outputs_list.append(
+            (output.outputs[0].index, output.outputs[0].text))
+
+    check_outputs_equal(
+        outputs_0_lst=no_sp_outputs_list,
+        outputs_1_lst=sp_outputs_list,
+        name_0="no_sp_outputs",
+        name_1="sp_outputs",
+    )