add paddle sum op

src/core/tests/frontend/paddle/op_fuzzy.cpp

@@ -386,6 +386,9 @@ static const std::vector<std::string> models{
     std::string("strided_slice_input2_3"),
     std::string("strided_slice_input3_1"),
     std::string("strided_slice_input3_2"),
+    std::string("sum_float_1"),
+    std::string("sum_float_2"),
+    std::string("sum_float_3"),
     std::string("swish_default_params"),
     std::string("swish_beta"),
     std::string("tanh"),

src/core/tests/frontend/paddle/test_models/gen_scripts/generate_sum.py

@@ -0,0 +1,65 @@
+# Copyright (C) 2018-2022 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+#
+# stack paddle model generator
+#
+import numpy as np
+from save_model import saveModel
+import sys
+
+
+def sum(name:str, input1, input2, input3):
+    import paddle
+    paddle.enable_static()
+
+    with paddle.static.program_guard(paddle.static.Program(), paddle.static.Program()):
+        data1 = paddle.static.data(
+            'data1', shape=input1.shape, dtype=input1.dtype)
+        data2 = paddle.static.data(
+            'data2', shape=input2.shape, dtype=input2.dtype)
+        data3 = paddle.static.data(
+            'data3', shape=input3.shape, dtype=input3.dtype)
+
+        out = paddle.fluid.layers.sum([data1, data2, data3])
+        cpu = paddle.static.cpu_places(1)
+        exe = paddle.static.Executor(cpu[0])
+        exe.run(paddle.static.default_startup_program())
+
+        outs = exe.run(
+            feed={"data1": input1,
+                  "data2": input2,
+                  "data3": input3},
+            fetch_list=[out])
+        saveModel(name, exe, feedkeys=['data1', 'data2', 'data3'], fetchlist=[out], inputs=[
+                input1, input2, input3], outputs=[outs[0]], target_dir=sys.argv[1])
+
+    return outs[0]
+
+
+def main():
+
+    in_type = np.float32
+    in_shape = [1, 5]
+    input1 = np.random.random(in_shape).astype(in_type)
+    input2 = np.random.random(in_shape).astype(in_type)
+    input3 = np.random.random(in_shape).astype(in_type)
+    sum("sum_float_1", input1, input2, input3)
+
+    in_type = np.float32
+    in_shape = [5, 5]
+    input1 = np.random.random(in_shape).astype(in_type)
+    input2 = np.random.random(in_shape).astype(in_type)
+    input3 = np.random.random(in_shape).astype(in_type)
+    sum("sum_float_2", input1, input2, input3)
+
+    in_type = np.float32
+    in_shape = [5, 10]
+    input1 = np.random.random(in_shape).astype(in_type)
+    input2 = np.random.random(in_shape).astype(in_type)
+    input3 = np.random.random(in_shape).astype(in_type)
+    sum("sum_float_3", input1, input2, input3)
+
+
+if __name__ == "__main__":
+    main()

src/frontends/paddle/src/op/sum.cpp

@@ -0,0 +1,30 @@
+// Copyright (C) 2018-2022 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+//
+#include "default_opset.hpp"
+#include "openvino/frontend/paddle/node_context.hpp"
+
+namespace ov {
+namespace frontend {
+namespace paddle {
+namespace op {
+NamedOutputs sum(const NodeContext& node) {
+    auto datas = node.get_ng_inputs("X");
+    auto data_type = datas[0].get_element_type();
+    auto data_shape = datas[0].get_shape();
+    std::shared_ptr<Node> out_node = datas[0].get_node_shared_ptr();
+    for (int i = 1; i < datas.size(); ++i) {
+        PADDLE_OP_CHECK(node,
+                        data_type == datas[i].get_element_type(),
+                        "sum input tensor must have the same data types!");
+        PADDLE_OP_CHECK(node,
+                        data_shape == datas[i].get_shape(),
+                        "sum input tensor must have the same shape!");
+        out_node = std::make_shared<default_opset::Add>(datas[i], out_node);
+    }
+    return node.default_single_output_mapping({out_node}, {"Out"});
+}
+}  // namespace op
+}  // namespace paddle
+}  // namespace frontend
+}  // namespace ov

src/frontends/paddle/src/op_table.cpp

@@ -85,6 +85,7 @@ OP_CONVERTER(sqrt);
 OP_CONVERTER(squeeze);
 OP_CONVERTER(stack);
 OP_CONVERTER(strided_slice);
+OP_CONVERTER(sum);
 OP_CONVERTER(swish);
 OP_CONVERTER(tanh);
 OP_CONVERTER(top_k_v2);
@@ -180,6 +181,7 @@ std::map<std::string, CreatorFunction> get_supported_ops() {
             {"squeeze2", op::squeeze},
             {"stack", op::stack},
             {"strided_slice", op::strided_slice},
+            {"sum", op::sum},
             {"swish", op::swish},
             {"sync_batch_norm", op::batch_norm},
             {"tanh", op::tanh},