Describe the current behavior / 问题描述 (Mandatory / 必填)

tensordot算子在mindspore r2.3 + CAN 7.2下，fp16和fp32的结果不一致。

Environment / 环境信息 (Mandatory / 必填)

• Hardware Environment(Ascend/GPU/CPU) / 硬件环境:

Please delete the backend not involved / 请删除不涉及的后端:
/device ascend

• Software Environment / 软件环境 (Mandatory / 必填):
  -- MindSpore version : 2.3.0
  -- Python version : 3.7
  -- OS platform and distribution: Linux
  -- GCC/Compiler version (if compiled from source):

• Excute Mode / 执行模式 (Mandatory / 必填)(PyNative/Graph):

Please delete the mode not involved / 请删除不涉及的模式:
/mode pynative
/mode graph

Related testcase / 关联用例 (Mandatory / 必填)

Steps to reproduce the issue / 重现步骤 (Mandatory / 必填)

import mindspore.numpy as np
import mindspore as ms
from mindspore import ops

ms.set_context(device_target="Ascend",device_id = 1)

a = np.ones((3, 4, 5),dtype=ms.float16)
b = np.ones((4, 3, 2),dtype=ms.float16)
output = np.tensordot(a, b, axes=([1,0],[0,1]))
print(output)

a = np.ones((3, 4, 5))
b = np.ones((4, 3, 2))
output = np.tensordot(a, b, axes=([1,0],[0,1]))
print(output)

Describe the expected behavior / 预期结果 (Mandatory / 必填)

[[12. 12.]
[12. 12.]
[12. 12.]
[12. 12.]
[12. 12.]]
[[12. 12.]
[12. 12.]
[12. 12.]
[12. 12.]
[12. 12.]]

Related log / screenshot / 日志 / 截图 (Mandatory / 必填)

[[4. 4.]
[4. 4.]
[4. 4.]
[4. 4.]
[4. 4.]]
[[12. 12.]
[12. 12.]
[12. 12.]
[12. 12.]
[12. 12.]]

Special notes for this issue/备注 (Optional / 选填)