deepspeedai / deepspeedai/DeepSpeed
Functorch support: RuntimeError: In order to use an autograd.Function with functorch transforms
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Description
Hi,
Are you planning to support functorch? I am currently getting:
[rank2]: File "/home/iapostol/miniconda3/envs/scaff/lib/python3.12/site-packages/deepspeed/runtime/zero/linear.py", line 109, in zero3_linear_wrap
[rank2]: return LinearFunctionForZeroStage3.apply(input, weight)
[rank2]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[rank2]: File "/home/iapostol/miniconda3/envs/scaff/lib/python3.12/site-packages/torch/autograd/function.py", line 577, in apply
[rank2]: raise RuntimeError(
[rank2]: RuntimeError: In order to use an autograd.Function with functorch transforms (vmap, grad, jvp, jacrev, ...), it must override the setup_context staticmethod. For more details, please see https://pytorch.org/docs/main/notes/extending.func.html
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
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Research direction
Start at deepspeed/runtime/zero/linear.py:109, where LinearFunctionForZeroStage3.apply is called, and reproduce the reported failure with the relevant functorch transform. Read the linked PyTorch guidance on autograd.Function setup_context and determine the affected DeepSpeed path. Done means the reported RuntimeError no longer occurs for the supported transform.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python, pytorch
- Domain
- distributed-systems, machine-learning
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 28/100