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[megatron-bert-uncased-345m] fix conversion #16639

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Merged
stas00 merged 1 commit into from
Apr 7, 2022
Merged

[megatron-bert-uncased-345m] fix conversion #16639

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4 changes: 4 additions & 0 deletions src/transformers/models/megatron_bert/convert_megatron_bert_checkpoint.py
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Original file line number Diff line number Diff line change
Expand Up @@ -300,6 +300,10 @@ def main():
if args.config_file == "":
# Default config of megatron-bert 345m
config = MegatronBertConfig()

# different megatron-bert-*-345m models have different vocab sizes, so override the default
# config (which is for megatron-bert-cased-345m) with the actual vocab dimension
config.vocab_size = input_state_dict["model"]["lm_head"]["bias"].numel()
else:
config = MegatronBertConfig.from_json_file(args.config_file)

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