chore: import upstream snapshot with attribution

python/tvm/relax/distributed/global_info.py

@@ -0,0 +1,66 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+# pylint: disable=redefined-builtin, invalid-name
+"""Global Info Data structures for distributed tensor."""
+
+import tvm_ffi
+from tvm_ffi import Shape
+
+from tvm.ir import Range
+from tvm.ir.global_info import GlobalInfo
+
+from . import _ffi_api as ffi
+
+
+@tvm_ffi.register_object("relax.distributed.DeviceMesh")
+class DeviceMesh(GlobalInfo):
+    """Device mesh express a view of topology of devices,
+       represented by an n-d matrix of device ids.
+
+    Parameters
+    ----------
+    shape: Union[Shape, List[int], Tuple[int]]
+        Logical shape of device mesh
+    device_ids: Union[List[int], Range]
+        Represents the device id in the mesh
+    """
+
+    def __init__(self, shape: Shape | list[int] | tuple[int], device_ids: list[int] | Range):
+        if not isinstance(shape, Shape):
+            shape = Shape(shape)
+        device_range = None
+        if isinstance(device_ids, Range):
+            device_range = device_ids
+            device_ids = []
+        self.__init_handle_by_constructor__(ffi.DeviceMesh, shape, device_ids, device_range)  # type: ignore
+
+
+def device_mesh(shape: Shape, device_ids: list[int] | Range) -> DeviceMesh:
+    """Create a device mesh expression.
+    Parameters
+    ----------
+    shape : Shape
+        The shape of the device mesh.
+    device_ids: Union[List[int], Range]
+        Represents the device id in the mesh
+
+    Returns
+    -------
+    res : DeviceMesh
+        The device mesh.
+    """
+    return DeviceMesh(shape, device_ids)  # pylint: disable=no-member # type: ignore