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fix long dtype in topk sampling (#15049)

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Chujie Zheng 2025-03-19 06:57:31 +08:00 committed by GitHub
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commit 027827cc1d
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vllm/v1/sample/sampler.py
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@ -151,7 +151,7 @@ class Sampler(nn.Module):
dim=-1)
# Get with the logprob of the prompt or sampled token.
token_ids = token_ids.unsqueeze(-1)
token_ids = token_ids.unsqueeze(-1).to(torch.long)
token_logprobs = logprobs.gather(-1, token_ids)
# Compute the ranks of the actual token.