[0.7.3] Optimize apply_penalties & topKtopP for both V0/V1 Engine #525
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This PR optimizes apply_penalties & topKtopP implementation in both V0/V1 Engine by avoiding using torch.scatter and matrix indexing operations.
We verified the functionality of this PR using Qwen2.5-72B-Instruct. At a concurrency of 40 and with post-processing parameters set to "temperature": 0.3, "top_k": 100, "top_p": 0.9, "repetition_penalty": 1.01, the average decoding time was reduced from 300ms to 50ms.