restore obs_slots_boundary_kept for obs dim#453
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Pull request overview
This PR restores fixed-size road observation slots so model slicing and C observation packing stay aligned across dropout-enabled training and clean evaluation. It also adds render-client teardown during vector env close paths.
Changes:
- Uses
obs_slots_lane_n/obs_slots_boundary_nfor observation sizing and Torch road slices. - Updates C road observation layout and padding to reserve max lane/boundary slots.
- Adds client cleanup before vector env teardown and inside
c_close.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
pufferlib/ocean/torch.py |
Aligns model road observation slicing with fixed max slot counts. |
pufferlib/ocean/drive/drive.py |
Updates Python observation dimension calculation and adds explicit render-client close loops. |
pufferlib/ocean/drive/drive.h |
Updates C observation size/layout/padding and closes render clients during env teardown. |
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| for i in range(self.num_envs): | ||
| binding.vec_close_client(self.c_envs, i) |
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| for i in range(self.num_envs): | ||
| binding.vec_close_client(self.c_envs, i) |
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| if (env->client) { | ||
| close_client(env->client); | ||
| env->client = NULL; | ||
| } |
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| for i in range(self.num_envs): | ||
| binding.vec_close_client(self.c_envs, i) |
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this might be the right thing to do, but include in separate PR
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Changes from 7eaee60 to a412614
Previously buffer always is sized by max_lane_segment_observations (the max, regardless of dropout), and unused slots were zero-padded. Later renamed max_lane_segment_observations → obs_slots_lane_n and obs_lane_segment_count → obs_slots_lane_kept. This introduce a bug when training with dropout and eval without it.
Close envs