mindspore.ops.TensorScatterAdd

class mindspore.ops.TensorScatterAdd

根据指定的更新值和输入索引，进行加法运算更新输入Tensor的值。当同一索引有不同更新值时，更新的结果将是累积加法的结果。此操作与 mindspore.ops.ScatterNdAdd 类似，只是更新后的结果是通过算子output返回，而不是直接原地更新input。

更多参考详见 mindspore.ops.tensor_scatter_add()。

支持平台：

Ascend GPU CPU

样例：

>>> input_x = Tensor(np.array([[-0.1, 0.3, 3.6], [0.4, 0.5, -3.2]]), mindspore.float32)
>>> indices = Tensor(np.array([[0, 0], [0, 0]]), mindspore.int32)
>>> updates = Tensor(np.array([1.0, 2.2]), mindspore.float32)
>>> # Next, demonstrate the approximate operation process of this operator:
>>> # 1, indices[0] = [0, 0], indices[1] = [0, 0]
>>> # 2, And input_x[0, 0] = -0.1
>>> # 3, So input_x[indices] = [-0.1, -0.1]
>>> # 4, Satisfy the above formula: input_x[indices].shape=(2) == updates.shape=(2)
>>> op = ops.TensorScatterAdd()
>>> # 5, Perform the addition operation for the first time:
>>> #      first_input_x = input_x[0][0] + updates[0] = [[0.9, 0.3, 3.6], [0.4, 0.5, -3.2]]
>>> # 6, Perform the addition operation for the second time:
>>> #      second_input_x = input_x[0][0] + updates[1] = [[3.1, 0.3, 3.6], [0.4, 0.5, -3.2]]
>>> output = op(input_x, indices, updates)
>>> print(output)
[[ 3.1  0.3  3.6]
 [ 0.4  0.5 -3.2]]