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make build_mpt_alibi_tensor a method of MptModel so that deepspeed co… #25193

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Merged
sgugger merged 1 commit into from
Aug 1, 2023
Merged

make build_mpt_alibi_tensor a method of MptModel so that deepspeed co… #25193

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5 changes: 4 additions & 1 deletion src/transformers/models/mpt/modeling_mpt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -413,6 +413,9 @@ def __init__(self, config: MptConfig):
def get_input_embeddings(self):
return self.wte

def build_mpt_alibi_tensor(self, num_heads, sequence_length, alibi_bias_max=8, device=None):
return build_mpt_alibi_tensor(num_heads, sequence_length, alibi_bias_max, device)

def _prepare_attn_mask(
self, attention_mask: torch.Tensor, input_shape: Tuple[int, int], past_key_values_length: int
) -> torch.BoolTensor:
Expand Down Expand Up @@ -507,7 +510,7 @@ def forward(
else:
attention_mask = attention_mask.to(hidden_states.device)

alibi = build_mpt_alibi_tensor(self.num_heads, self.config.max_seq_len, device=hidden_states.device)
alibi = self.build_mpt_alibi_tensor(self.num_heads, self.config.max_seq_len, device=hidden_states.device)

causal_mask = self._prepare_attn_mask(
attention_mask,
Expand Down