chore: import upstream snapshot with attribution

2026-07-13 13:35:51 +08:00
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+.. _guide-message-passing-part:
+
+2.3 Apply Message Passing On Part Of The Graph
+----------------------------------------------
+
+:ref:`(中文版) <guide_cn-message-passing-part>`
+
+If one only wants to update part of the nodes in the graph, the practice
+is to create a subgraph by providing the IDs for the nodes to
+include in the update, then call :meth:`~dgl.DGLGraph.update_all` on the
+subgraph. For example:
+
+.. code::
+
+    nid = [0, 2, 3, 6, 7, 9]
+    sg = g.subgraph(nid)
+    sg.update_all(message_func, reduce_func, apply_node_func)
+
+This is a common usage in mini-batch training. Check :ref:`guide-minibatch` for more detailed
+usages.