Coverage for hyper_parallel / platform / mindspore / hsdp / async_grad_hook.py: 33%

1# Copyright 2025 Huawei Technologies Co., Ltd 

2# 

3# Licensed under the Apache License, Version 2.0 (the "License"); 

4# you may not use this file except in compliance with the License. 

5# You may obtain a copy of the License at 

6# 

7# http://www.apache.org/licenses/LICENSE-2.0 

8# 

9# Unless required by applicable law or agreed to in writing, software 

10# distributed under the License is distributed on an "AS IS" BASIS, 

11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 

12# See the License for the specific language governing permissions and 

13# limitations under the License. 

14# ============================================================================ 

15"""HSDP async gradient hook""" 

16from hyper_parallel.core.hsdp.hsdp_async_grad_hook import HSDPAsyncGradHook 

17 

18 

19class MindSporeHSDPAsyncGradHook(HSDPAsyncGradHook): 

20 """HSDP gradient hook with async communication op""" 

21 

22 def _get_final_grad_hook(self, param, grad_hook, post_hook=None): 

23 """add cast and scale grad""" 

24 final_hook = super()._get_final_grad_hook(param, grad_hook, post_hook) 

25 def set_grad_hook(grad): 

26 grad = final_hook(grad) 

27 param.grad = grad 

28 return grad 

29 

30 return set_grad_hook