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Update knn_datastore.py #9

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Dec 26, 2022
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Update knn_datastore.py #9

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4 changes: 2 additions & 2 deletions fairseq/modules/knn_datastore.py
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Original file line number Diff line number Diff line change
Expand Up @@ -320,7 +320,7 @@ def calculate_select_knn_prob(self,
weight_sum_knn_weight = torch.matmul(knn_select_prob.unsqueeze(-2), knn_weight).squeeze(-2).unsqueeze(-1) # [B, S, K, 1]
# print('calculate multiple k prob sum, took {} s'.format(time.time() - start))

knn_tgt_prob = torch.zeros(B, S, K, self.vocab_size).to(queries.device) # [B, S, K, Vocab Size]
knn_tgt_prob = torch.zeros(B, S, K, self.vocab_size, device=queries.device) # [B, S, K, Vocab Size]
tgt_index = tgt_index.unsqueeze_(-1) # [B, S, K, 1]

# start = time.time()
Expand Down Expand Up @@ -366,7 +366,7 @@ def calculate_knn_prob(self,
knn_weight = torch.softmax(scaled_dists, dim=-1).unsqueeze(-1) # [B, S, K, 1]

# set the target index for each neighbor
knn_tgt_prob = torch.zeros(bsz, seq_len, self.k, self.vocab_size).to(queries.device) # [B, S, K, Vocab Size]
knn_tgt_prob = torch.zeros(bsz, seq_len, self.k, self.vocab_size, device=queries.device) # [B, S, K, Vocab Size]
tgt_index = tgt_index.unsqueeze_(-1) # [B, S, K, 1]

# implemented with pytorch_scatter
Expand Down