Update "past_sequence_length + 1" shape dimension name to "past_sequence_length + sequence_length" #2088
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…gth" instead of "past_sequence_length + 1" since the output length depends on the input sequence_length which may not be 1, e.g. when filling the kv-cache
PatrikPerssonInceptron
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PatrikPerssonInceptron
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When exporting a LLM to onnx with ``--task text-generation-with-past, the attention_mask and output kv-cache shapes contain a dimension set to "past_sequence_length + 1". This assumes that the input token sequence length is 1 which may not be the case when e.g. filling the kv-cache with the input prompt.
Fix
I updated the strings "past_sequence_length + 1" to "past_sequence_length + sequence_length" to reflect the case when the input sequence is longer than 1.
@fxmarty, @echarlaix, @JingyaHuang, @michaelbenayoun