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Enabled python runtime saving #2999

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Description

Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.

Fixes # (issue)

Type of change

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  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to not work as expected)
  • This change requires a documentation update

Checklist:

  • My code follows the style guidelines of this project (You can use the linters)
  • I have performed a self-review of my own code
  • I have commented my code, particularly in hard-to-understand areas and hacks
  • I have made corresponding changes to the documentation
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@github-actions github-actions bot added component: api [Python] Issues re: Python API component: runtime component: dynamo Issues relating to the `torch.compile` or `torch._dynamo.export` paths labels Jul 11, 2024
state.pop("input_shapes", None)
state.pop("output_dtypes", None)
state.pop("output_shapes", None)
state.pop("active_stream", None)
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I dont think this data should be serialized. It should be reconstructed on reload

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These data are poped from the dict so they are not serialized

state.pop("output_dtypes", None)
state.pop("output_shapes", None)
state.pop("active_stream", None)
state.pop("target_device_properties", None)
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Do we reuse this data on load to set up the engine properly?

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Yes. Line 163 initialized all these data

self.__dict__.update(state)
self.target_device_properties = torch.cuda.get_device_properties(
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The deserialization should make sure that the gpu matches the gpu the engine was built on instead of just changing it

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cla signed component: api [Python] Issues re: Python API component: dynamo Issues relating to the `torch.compile` or `torch._dynamo.export` paths component: runtime
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