Fix description error in api create_group

.jenkins/check/config/filter_pylint.txt

@@ -160,6 +160,7 @@
 "mindspore/tests/st/fallback/control_flow/test_fallback_100_if_after_if.py"                             "unused-variable"
 "mindspore/tests/st/numpy_native/test_array_ops.py"                                                     "useless-super-delegation"
 "mindspore/tests/ut/python/mindir/test_mindir_export.py"                                                "no-else-return"
+"mindspore/tests/"                                                                                      "c-extension-no-member"
 
 #MindSpore Lite
 "mindspore/mindspore/ccsrc/plugin/device/cpu/kernel/nnacl/experimental/HPC-generator/generator.py"                                         "redefined-builtin"

docs/api/api_python/mindspore.communication.rst

@@ -135,7 +135,7 @@ mindspore.communication
         - 列表rank_ids的长度应大于1。
         - 列表rank_ids内不能有重复数据。
         - `create_group` 方法应该在 `init` 方法之后使用。
-        - PyNative模式下仅支持全局单通信组。
+        - 如果没有使用mpirun启动，PyNative模式下仅支持全局单通信组。
         - 在运行以下示例之前，用户需要预设通信环境变量，请查看mindspore.communication的文档注释。
 
     参数：

mindspore/python/mindspore/communication/management.py

@@ -437,7 +437,7 @@ def create_group(group, rank_ids):
         GPU version of MindSpore doesn't support this method.
         The size of rank_ids should be larger than 1, rank_ids should not have duplicate data.
         This method should be used after init().
-        Only support global single communication group in PyNative mode.
+        Only support global single communication group in PyNative mode if you do not start with mpirun.
         The user needs to preset communication environment variables before running the following example, please see
         the docstring of the mindspore.managerment.