[1/N][CI] Add multi node test (#3359)

### What this PR does / why we need it?
This pr purpose to add multi-node test, on the first step, add
`deepseek-v3` dp+tp+ep test
### Does this PR introduce _any_ user-facing change?

### How was this patch tested?

- vLLM version: v0.11.0rc3
- vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0

---------

Signed-off-by: wangli <wangli858794774@gmail.com>

tests/e2e/multi_node/scripts/run.sh

@@ -0,0 +1,96 @@
+#!/bin/bash
+set -euo pipefail
+
+export SRC_DIR="$WORKSPACE/source_code"
+
+check_npu_info() {
+    echo "====> Check NPU info"
+    npu-smi info
+    cat "/usr/local/Ascend/ascend-toolkit/latest/$(uname -i)-linux/ascend_toolkit_install.info"
+}
+
+check_and_config() {
+    echo "====> Configure mirrors and git proxy"
+    git config --global url."https://gh-proxy.test.osinfra.cn/https://github.com/".insteadOf "https://github.com/"
+    pip config set global.index-url https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple
+    export PIP_EXTRA_INDEX_URL=https://mirrors.huaweicloud.com/ascend/repos/pypi
+}
+
+checkout_src() {
+    echo "====> Checkout source code"
+    mkdir -p "$SRC_DIR"
+
+    # vllm-ascend
+    if [ ! -d "$SRC_DIR/vllm-ascend" ]; then
+        git clone --depth 1 -b $VLLM_ASCEND_VERSION https://github.com/vllm-project/vllm-ascend.git "$SRC_DIR/vllm-ascend"
+    fi
+
+    # vllm
+    if [ ! -d "$SRC_DIR/vllm" ]; then
+        git clone -b $VLLM_VERSION https://github.com/vllm-project/vllm.git "$SRC_DIR/vllm"
+    fi
+
+    #mooncake
+    if [ ! -d "$SRC_DIR/Mooncake" ]; then
+        git clone https://github.com/kvcache-ai/Mooncake.git "$SRC_DIR/Mooncake"
+        cd "$SRC_DIR/Mooncake"
+        git checkout 06cc217504a6f1b0cdaa26b096b985651b262748
+        cd -
+    fi
+}
+
+install_sys_dependencies() {
+    echo "====> Install system dependencies"
+    apt-get update -y
+
+    DEP_LIST=()
+    while IFS= read -r line; do
+        [[ -n "$line" && ! "$line" =~ ^# ]] && DEP_LIST+=("$line")
+    done < "$SRC_DIR/vllm-ascend/packages.txt"
+
+    apt-get install -y "${DEP_LIST[@]}" gcc g++ cmake libnuma-dev iproute2
+}
+
+install_vllm() {
+    echo "====> Install vllm and vllm-ascend"
+    VLLM_TARGET_DEVICE=empty pip install -e "$SRC_DIR/vllm"
+    pip install -e "$SRC_DIR/vllm-ascend"
+    pip install modelscope
+    # Install for pytest
+    pip install -r "$SRC_DIR/vllm-ascend/requirements-dev.txt"
+}
+
+install_mooncake() {
+    echo "====> Install mooncake"
+    apt-get update
+    apt install -y --allow-change-held-packages python3 python-is-python3
+    apt-get install -y --no-install-recommends mpich libmpich-dev
+    cd $SRC_DIR/Mooncake
+    sed -i '/option(USE_ASCEND_DIRECT)/s/OFF/ON/' mooncake-common/common.cmake
+    bash dependencies.sh --yes
+    mkdir build
+    cd -
+    cd $SRC_DIR/Mooncake/build
+    cmake ..
+    make -j
+    make install
+    cd -
+}
+
+run_tests() {
+    echo "====> Run tests"
+    cd "$SRC_DIR/vllm-ascend"
+    pytest -sv tests/e2e/multi_node/test_multi_dp.py
+}
+
+main() {
+    check_npu_info
+    check_and_config
+    checkout_src
+    install_sys_dependencies
+    install_vllm
+    #install_mooncake
+    run_tests
+}
+
+main "$@"