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[transformers_modeling_backend] Upgrade transformers from 4.57.1 to 5.0.0rc0 #2154

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[transformers_modeling_backend] Upgrade transformers from 4.57.1 to 5.0.0rc0 #2154

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4f36924
add tooling
3outeille Nov 24, 2025
5a63932
add check checkpoint correctness
3outeille Nov 24, 2025
819ea64
add compare throughput to tooling
3outeille Dec 15, 2025
a54016b
Enhance debug_local.sh to support compile flag
3outeille Dec 15, 2025
409483a
Enhance debug_local.sh to support dynamic flavor selection
3outeille Dec 15, 2025
b7e88ce
modify template to use reservation
3outeille Dec 15, 2025
33f7e57
this doesnt exist in v5 anymore (maybe for encoder tho but not for de…
3outeille Dec 15, 2025
f544b93
Fix padding index handling for DTensor in HFTransformerModel class
3outeille Dec 15, 2025
15e44c3
Enhance grid_search_slurm.sh to support dynamic flavor selection and …
3outeille Dec 15, 2025
f0eb064
Merge branch 'tooling' into move-to-v5
3outeille Dec 15, 2025
769a61a
upgrade to transformers v5
3outeille Dec 15, 2025
b6bad9a
avoid copy using _local_tensor()
3outeille Dec 15, 2025
da21ac8
remove tooling
3outeille Dec 15, 2025
ff0dbb9
linting
3outeille Dec 16, 2025
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this doesnt exist in v5 anymore (maybe for encoder tho but not for de… 
…coder)
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@3outeille
3outeille committed Dec 15, 2025
commit 33f7e576f664493f6a533857dda53bff3a5a4ce9
4 changes: 0 additions & 4 deletions torchtitan/experiments/transformers_modeling_backend/model/model.py
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Expand Up @@ -429,10 +429,6 @@ def init_weights(self, *args, **kwargs):
# This method replicates the behavior of the original PreTrainedModel.init_weights,
# but with a custom weight initialization function that skips nn.Identity modules (when PP is enabled)

if self.model.config.pruned_heads:
logger.info("Pruning heads as per model configuration.")
self.model.prune_heads(self.model.config.pruned_heads)

original_init_weights_fn = self.model._init_weights

def selective_init(module):
Expand Down