v0.10.1rc1

vllm_ascend/distributed/communication_op.py

@@ -0,0 +1,25 @@
+#
+# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# This file is a part of the vllm-ascend project.
+#
+
+import torch
+from vllm.distributed.parallel_state import get_dp_group
+
+
+def data_parallel_reduce_scatter(input_: torch.Tensor,
+                                 dim: int = -1) -> torch.Tensor:
+    """Reduce-Scatter the input tensor across data parallel group."""
+    return get_dp_group().reduce_scatter(input_, dim)