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fix empty tensor (#6319)

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Co-authored-by: Tong Li <tong.li35271158@gmail.com>
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Tong Li 2025-05-20 17:41:44 +08:00 committed by GitHub
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commit 32afa7bf29
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applications/ColossalChat/coati/distributed/grpo_consumer.py
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@ -254,7 +254,7 @@ class GRPOConsumer(BaseConsumer):
true_indices = torch.nonzero(effective_prompts_mask)
# Make sure the indices are not empty.
if true_indices.numel() > 0:
true_indices = true_indices.squeeze()
true_indices = true_indices.squeeze(-1)
if excessive_prompts_per_rank <= len(true_indices):
excessive_prompts_idx = true_indices[-excessive_prompts_per_rank:]
else: