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Fix the layer-past for GPT based models #2196

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Merged
tjruwase merged 1 commit into from
Aug 9, 2022
Merged

Fix the layer-past for GPT based models #2196

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4 changes: 4 additions & 0 deletions deepspeed/ops/transformer/inference/transformer_inference.py
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Original file line number Diff line number Diff line change
Expand Up @@ -812,6 +812,10 @@ def forward(self,
output_attentions=False):
get_present = (get_present or get_key_value or use_cache)
input_mask = input_mask if attention_mask is None else attention_mask

# We set the prev key/value to None when there is a prompt
if input.shape[1] > 1:
self.layer_past = None
layer_past = layer_past if layer_past is not None else self.layer_past

attn_mask = None
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