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vllm-omni/vllm_omni/model_executor/models/utils.py
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2025-11-30 04:44:01 +08:00

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1.1 KiB
Python

import torch
from vllm.model_executor.models.utils import maybe_prefix
def add_prefix_to_loaded_weights(weights: set[str], prefix: str) -> set[str]:
"""
Add a prefix to the names of the loaded weights.
"""
return {maybe_prefix(prefix, name) for name in weights}
def split_list_into_ranges(lst: torch.Tensor, interval: int) -> list[list[int]]:
if lst.numel() == 0:
return []
# Move to CPU and convert to list once (High Speedup)
# using .item() inside a loop is very slow.
data_list = lst.detach().cpu().tolist()
# Calculate max on the list or tensor (Tensor max is fast enough)
max_val = int(torch.max(lst).item())
# Pre-allocate buckets
ranges: list[list[int]] = [[] for _ in range((max_val // interval) + 1)]
for num in data_list:
index = int(num // interval)
ranges[index].append(num)
return ranges
def safe_tensor_reshape(tensor: torch.Tensor, shape: tuple) -> torch.Tensor:
"""
Reshape a tensor safely.
"""
if tensor is None:
return None
return tensor.reshape(shape)