1 files changed, 40 insertions, 0 deletions
diff --git a/model-optimizer/extensions/ops/rank.py b/model-optimizer/extensions/ops/rank.py
new file mode 100644
index 000000000..ed17048cc
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+++ b/model-optimizer/extensions/ops/rank.py
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+"""
+ Copyright (c) 2018 Intel Corporation
+
+ 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.
+"""
+
+import networkx as nx
+import numpy as np
+
+from mo.graph.graph import Node
+from mo.ops.op import Op
+from mo.utils.error import Error
+
+
+class Rank(Op):
+    op = 'Rank'
+
+    def __init__(self, graph: nx.MultiDiGraph, attrs: dict):
+        mandatory_props = {
+            'op': __class__.op,
+            'infer': __class__.infer,
+        }
+        super().__init__(graph, mandatory_props, attrs)
+
+    @staticmethod
+    def infer(node: Node):
+        rank = len(node.in_node(0).shape)
+        out_value = np.array(rank)
+        node.out_node().value = out_value
+        node.out_node().shape = out_value.shape