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fix ndim check of device_mesh for TP (#39538)

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Wing Lian
2025-07-21 09:09:33 -04:00
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parent 1aa7256f01
commit 4b4f04fcca
1 changed files with 1 additions and 1 deletions
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src/transformers/modeling_utils.py
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@@ -4522,7 +4522,7 @@ class PreTrainedModel(nn.Module, ModuleUtilsMixin, PushToHubMixin, PeftAdapterMi
tp_plan, device_map, device_mesh = initialize_tensor_parallelism(tp_plan, tp_size=None) tp_plan, device_map, device_mesh = initialize_tensor_parallelism(tp_plan, tp_size=None)
else: else:
# TODO: make device_mesh support multiple dimensions # TODO: make device_mesh support multiple dimensions
if device_mesh.ndim == 1: if device_mesh.ndim != 1:
raise ValueError("device_mesh must be 1 dimensional and will be used for TP") raise ValueError("device_mesh must be 1 dimensional and will be used for TP")
device_map = torch.device(device_mesh.device_type, int(os.environ["LOCAL_RANK"])) device_map = torch.device(device_mesh.device_type, int(os.environ["LOCAL_RANK"]))