chore: import upstream snapshot with attribution

2026-07-13 13:36:25 +08:00
commit 26446540fa
3151 changed files with 974126 additions and 0 deletions
@@ -0,0 +1,58 @@
+# 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.
+import pytest
+
+import tvm
+import tvm.testing
+from tvm import relax
+from tvm.script.parser import relax as R
+
+
+def _check_inference(bb: relax.BlockBuilder, call: relax.Call, expected_ty: relax.Type):
+    ret = bb.normalize(call)
+    tvm.ir.assert_structural_equal(ret.ty, expected_ty)
+
+
+def test_redistribute_R_to_S():
+    bb = relax.BlockBuilder()
+    mesh = R.device_mesh((4,), list(range(4)))
+    x = relax.Var("x", R.DTensor((3, 4), "float32", device_mesh=mesh, placement="R"))
+
+    _check_inference(
+        bb,
+        R.distributed.redistribute_replica_to_shard(x, num_workers=4, axis=1),
+        R.DTensor((3, 4), "float32", device_mesh=mesh, placement="S[1]"),
+    )
+
+    # wrong: indivisible
+    with pytest.raises(ValueError):
+        bb.normalize(R.distributed.redistribute_replica_to_shard(x, num_workers=4, axis=0))
+
+    y = relax.Var("y", R.Tensor((3, 4), "float32"))
+    _check_inference(
+        bb,
+        R.distributed.redistribute_replica_to_shard(y, num_workers=4, axis=1),
+        R.Tensor((3, 1), "float32"),
+    )
+
+    # wrong: indivisible
+    with pytest.raises(ValueError):
+        bb.normalize(R.distributed.redistribute_replica_to_shard(y, num_workers=4, axis=0))
+
+
+if __name__ == "__main__":
+    tvm.testing.main()