Index fill pytorch

src/frontends/pytorch/src/op/index_fill_.cpp

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+// Copyright (C) 2018-2023 Intel Corporation
+// SPDX-License-Identifier: Apache-2.0
+//
+
+#include <memory>
+
+#include "openvino/core/node.hpp"
+#include "openvino/core/node_output.hpp"
+#include "openvino/core/type/element_type.hpp"
+#include "openvino/frontend/pytorch/node_context.hpp"
+#include "openvino/op/broadcast.hpp"
+#include "openvino/op/constant.hpp"
+#include "openvino/op/convert_like.hpp"
+#include "openvino/op/reshape.hpp"
+#include "openvino/op/scatter_elements_update.hpp"
+#include "openvino/op/shape_of.hpp"
+#include "utils.hpp"
+
+using namespace ov::op;
+
+namespace ov {
+namespace frontend {
+namespace pytorch {
+namespace op {
+
+OutputVector translate_index_copy_(const NodeContext& context) {
+    // aten::index_fill_(self, dim, index, value) → Tensor
+    num_inputs_check(context, 4, 4);
+    auto input = context.get_input(0);
+    auto dim = context.get_input(1);
+    auto index = context.get_input(2);
+    auto value = context.get_input(3);
+
+    auto const_1_vec = v0::Constant::create(element::i32, Shape{1}, {value});
+
+    Output<Node> tensor_rank = std::get<1>(get_shape_rank(context, input, true));
+    auto tensor_rank_correct_type = context.mark_node(std::make_shared<v1::ConvertLike>(tensor_rank, dim));
+    auto positive_dim = normalize_axis(context, dim, tensor_rank_correct_type);
+
+    // begin the computation
+    //indx_cpy(dim,idx_def,tensor_def)
+    //indx_fill(dim,idx_def,val)
+    auto tensor_shape = context.mark_node(std::make_shared<v3::ShapeOf>(input, element::i32));
+    auto dim_vec = context.mark_node(std::make_shared<v1::Reshape>(positive_dim, const_1_vec, false));
+    auto broadcasted_index = context.mark_node(std::make_shared<v1::Broadcast>(index, tensor_shape, dim_vec));
+    //reshaping steps
+
+    //so we need to create a tensor with the same shape as the input tensor
+    //(val tensor is broadcasted to the shape of the input tensor) then index_copy
+    //val tensor->tensor of shape of input tensor with all values v
+
+
+
+
+    auto result =
+        context.mark_node(std::make_shared<v12::ScatterElementsUpdate>(input, broadcasted_index, index, dim));
+    return {result};
+};
+
+}  // namespace op
+}  // namespace pytorch
+}  // namespace frontend
+}  // namespace ov

tests/layer_tests/pytorch_tests/test_index_fill_.py

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+# Copyright (C) 2018-2023 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+
+import numpy as np
+import pytest
+import torch
+
+from pytorch_layer_test_class import PytorchLayerTest
+
+
+class TestIndexFill(PytorchLayerTest):
+    def _prepare_input(self):
+        return (self.input_tensor, self.values)
+
+    def create_model(self, dim, index):
+        class aten_index_fill_(torch.nn.Module):
+            def __init__(self, dim, index):
+                super().__init__()
+                self.dim = dim
+                self.index = index
+
+            def forward(self, input_tensor, values):
+                input_tensor.index_fill_(self.dim, self.index, values)
+                return input_tensor
+
+        ref_net = None
+
+        return aten_index_fill_(dim, index), ref_net, "aten::index_fill_"
+
+    @pytest.mark.parametrize(
+        "input_data",
+        (
+            {
+                "input_shape": [1],
+                "dim": 0, 
+                "values_shape": [1],
+                "index": torch.tensor([0], dtype=torch.long)
+            },
+            {
+                "input_shape": [10],
+                "dim": 0, 
+                "values_shape": [5],
+                "index": torch.tensor([2, 3, 6, 7, 1], dtype=torch.long)
+            },
+            {
+                "input_shape": [3, 3],
+                "dim": 0, 
+                "values_shape": [2, 3],
+                "index": torch.tensor([2, 0], dtype=torch.long)
+            },
+            {
+                "input_shape": [4, 3, 5],
+                "dim": 1, 
+                "values_shape": [4, 2, 5],
+                "index": torch.tensor([1, 0], dtype=torch.long)
+            },
+            {
+                "input_shape": [5, 6, 7, 8],
+                "dim": -2, 
+                "values_shape": [5, 6, 4, 8],
+                "index": torch.tensor([5, 0, 6, 3], dtype=torch.long)
+            },
+            {
+                "input_shape": [5, 6, 7, 8],
+                "dim": -3, 
+                "values_shape": [5, 3, 7, 8],
+                "index": torch.tensor([2, 0, 1], dtype=torch.long)
+            },
+            {
+                "input_shape": [5, 6, 7, 8],
+                "dim": 3, 
+                "values_shape": [5, 6, 7, 5],
+                "index": torch.tensor([2, 6, 0, 4, 1], dtype=torch.long)
+            },
+        ),
+    )
+    @pytest.mark.nightly
+    @pytest.mark.precommit
+    def test_index_copy_single_index(self, ie_device, precision, ir_version, input_data):
+        self.input_tensor = np.random.randn(*input_data["input_shape"]).astype(np.float32)
+        self.values = np.random.randn(*input_data["values_shape"]).astype(np.float32)
+        index = input_data["index"]
+        dim = input_data["dim"]
+        self._test(*self.create_model(dim, index), ie_device, precision, ir_version)