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fix: remove extra bracket in std calc and specify tensor device #21

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fix: remove extra bracket in std calc and specify tensor device #21

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48cda85
fix: remove extra bracket in std calc and specify tensor device
study8677 Dec 7, 2025
5ac5511
refactor: apply PR feedback for N=1 logic and torch.stack optimization
study8677 Dec 7, 2025
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8 changes: 4 additions & 4 deletions agentevolver/module/trainer/ae_ray_trainer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -197,11 +197,11 @@ def compute_grpo_outcome_advantage(
id2score[index[i]].append(scores[i])
for idx in id2score:
if len(id2score[idx]) == 1:
id2mean[idx] = torch.tensor(0.0)
id2std[idx] = torch.tensor(1.0)
id2mean[idx] = torch.tensor(0.0, device=scores.device)
id2std[idx] = torch.tensor(1.0, device=scores.device)
elif len(id2score[idx]) > 1:
id2mean[idx] = torch.mean(torch.tensor(id2score[idx]))
id2std[idx] = torch.std(torch.tensor([id2score[idx]]))
id2mean[idx] = torch.mean(torch.tensor(id2score[idx], device=scores.device))
id2std[idx] = torch.std(torch.tensor(id2score[idx], device=scores.device))
else:
raise ValueError(f"no score in prompt index: {idx}")
for i in range(bsz):
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