From: Francois Fleuret Date: Sat, 27 Aug 2022 09:28:03 +0000 (+0200) Subject: The "mask" array actually specifies what attention to discard. X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=commitdiff_plain;h=0a8ed78035264cd7552b712596e897d6e73b7ef4;p=mygpt.git The "mask" array actually specifies what attention to discard. --- diff --git a/mygpt.py b/mygpt.py index ebc9a83..f954797 100755 --- a/mygpt.py +++ b/mygpt.py @@ -66,9 +66,9 @@ class QKVAttention(nn.Module): a = torch.einsum('nhtd,nhsd->nhts', q, k) / math.sqrt(q.size(3)) if self.causal: - mask = torch.arange(a.size(2), device = q.device)[None, None, :, None] \ - < torch.arange(a.size(3), device = q.device)[None, None, None, :] - a = a.masked_fill(mask, float('-inf')) + forbidden_attention = torch.arange(a.size(2), device = q.device)[None, None, :, None] \ + < torch.arange(a.size(3), device = q.device)[None, None, None, :] + a = a.masked_fill(forbidden_attention, float('-inf')) a = a.softmax(dim = 3) a = F.dropout(a, self.attention_dropout, self.training)