diff --git a/fastdeploy/cache_manager/transfer_factory/get_rdma_nics.sh b/fastdeploy/cache_manager/transfer_factory/get_rdma_nics.sh
index 4fc07a98c9..7fce4f8e5a 100644
--- a/fastdeploy/cache_manager/transfer_factory/get_rdma_nics.sh
+++ b/fastdeploy/cache_manager/transfer_factory/get_rdma_nics.sh
@@ -4,9 +4,9 @@ NICNAME_TYPE=xgbe  # 默认检测类型
 type=$1
 
 if [ "$ENABLE_EP_DP" == "1" ]; then
-    gpu_root_port_filename="${Cur_Dir}/gpu_rootport_${DP_RANK}.txt"
+    gpu_root_port_filename="${Cur_Dir}/gpu_rootport_${DP_RANK}_$$.txt"
 else
-    gpu_root_port_filename="${Cur_Dir}/gpu_rootport.txt"
+    gpu_root_port_filename="${Cur_Dir}/gpu_rootport_$$.txt"
 fi
 
 function __NEW_GPU_ROOTPORT_FILE__() {
diff --git a/fastdeploy/engine/args_utils.py b/fastdeploy/engine/args_utils.py
index 0d73354499..53113d4bc3 100644
--- a/fastdeploy/engine/args_utils.py
+++ b/fastdeploy/engine/args_utils.py
@@ -606,7 +606,12 @@ class EngineArgs:
                     console_logger.info(f"Using `{name}`: {ports}")
 
             if not self.skip_port_check:
-                for port in ports:
+                cur_dp_ports = ports[
+                    num_cur_dp_ports
+                    * self.local_data_parallel_id : num_cur_dp_ports
+                    * (self.local_data_parallel_id + 1)
+                ]
+                for port in cur_dp_ports:
                     assert is_port_available("0.0.0.0", port), f"Parameter `{name}`:{port} is already in use."
 
             console_logger.debug(f"post init {name}: {ports}")
diff --git a/fastdeploy/entrypoints/openai/multi_api_server.py b/fastdeploy/entrypoints/openai/multi_api_server.py
index 5e64228382..08aa3efbf8 100644
--- a/fastdeploy/entrypoints/openai/multi_api_server.py
+++ b/fastdeploy/entrypoints/openai/multi_api_server.py
@@ -136,7 +136,7 @@ def check_param(ports, num_servers):
     for port in ports:
         logger.info(f"check port {port}")
         if not is_port_available("0.0.0.0", int(port)):
-            return False
+            raise RuntimeError(f"Port {port} is not available.")
     return True
 
 
@@ -149,13 +149,17 @@ def main():
     parser.add_argument("--args", nargs=argparse.REMAINDER, help="remaining arguments are passed to api_server.py")
     args = parser.parse_args()
 
-    logger.info(f"Starting {args.num_servers} servers on ports: {args.ports} with args: {args.args}")
+    logger.info(f"Launching MultiAPIServer with command: {' '.join(sys.argv)}")
 
     device_count = 0
     if current_platform.is_cuda():
-        device_count = len(os.getenv("CUDA_VISIBLE_DEVICES", "0,1,2,3,4,5,6,7").split(","))
+        if os.getenv("CUDA_VISIBLE_DEVICES") is None:
+            raise ValueError("Please manually set CUDA_VISIBLE_DEVICES when launching multi-api-server.")
+        device_count = len(os.getenv("CUDA_VISIBLE_DEVICES").split(","))
     elif current_platform.is_xpu():
-        device_count = len(os.getenv("XPU_VISIBLE_DEVICES", "0,1,2,3,4,5,6,7").split(","))
+        if os.getenv("XPU_VISIBLE_DEVICES") is None:
+            raise ValueError("Please manually set XPU_VISIBLE_DEVICES when launching multi-api-server.")
+        device_count = len(os.getenv("XPU_VISIBLE_DEVICES").split(","))
 
     processes = start_servers(
         server_count=args.num_servers,
diff --git a/scripts/get_rdma_nics.sh b/scripts/get_rdma_nics.sh
index 4fc07a98c9..7fce4f8e5a 100644
--- a/scripts/get_rdma_nics.sh
+++ b/scripts/get_rdma_nics.sh
@@ -4,9 +4,9 @@ NICNAME_TYPE=xgbe  # 默认检测类型
 type=$1
 
 if [ "$ENABLE_EP_DP" == "1" ]; then
-    gpu_root_port_filename="${Cur_Dir}/gpu_rootport_${DP_RANK}.txt"
+    gpu_root_port_filename="${Cur_Dir}/gpu_rootport_${DP_RANK}_$$.txt"
 else
-    gpu_root_port_filename="${Cur_Dir}/gpu_rootport.txt"
+    gpu_root_port_filename="${Cur_Dir}/gpu_rootport_$$.txt"
 fi
 
 function __NEW_GPU_ROOTPORT_FILE__() {
diff --git a/tests/entrypoints/openai/test_multi_api_server.py b/tests/entrypoints/openai/test_multi_api_server.py
index a17f306acd..bf533b9576 100644
--- a/tests/entrypoints/openai/test_multi_api_server.py
+++ b/tests/entrypoints/openai/test_multi_api_server.py
@@ -122,7 +122,8 @@ class TestMultiApiServer(unittest.TestCase):
         # Mock port availability check - first port available, second not
         mock_is_port_available.side_effect = [True, False]
 
-        self.assertFalse(check_param(self.test_ports.split(","), self.test_server_count))
+        with self.assertRaises(RuntimeError):
+            check_param(self.test_ports.split(","), self.test_server_count)
 
     @patch("fastdeploy.entrypoints.openai.multi_api_server.is_port_available")
     @patch("fastdeploy.entrypoints.openai.multi_api_server.start_servers")