Comments (2)
In torch 1.10.0, I write some Convtranspose2d Lora code like
class ConvTransposeLoRA(nn.Module, lora.LoRALayer):
def init(self, conv_module, in_channels, out_channels, kernel_size, r=0, lora_alpha=1, lora_dropout=0., merge_weights=True, **kwargs):
super(ConvTransposeLoRA, self).init()
self.conv = conv_module(in_channels, out_channels, kernel_size, **kwargs)
lora.LoRALayer.init(self, r=r, lora_alpha=lora_alpha, lora_dropout=lora_dropout, merge_weights=merge_weights)
assert isinstance(kernel_size, int)
# Actual trainable parameters
if r > 0:
self.lora_A = nn.Parameter(
self.conv.weight.new_zeros((r * kernel_size, in_channels * kernel_size))
)
self.lora_B = nn.Parameter(
self.conv.weight.new_zeros((out_channels//self.conv.groupskernel_size, rkernel_size))
)
self.scaling = self.lora_alpha / self.r
# Freezing the pre-trained weight matrix
self.conv.weight.requires_grad = False
self.reset_parameters()
self.merged = False
def reset_parameters(self):
self.conv.reset_parameters()
if hasattr(self, 'lora_A'):
# initialize A the same way as the default for nn.Linear and B to zero
nn.init.kaiming_uniform_(self.lora_A, a=math.sqrt(5))
nn.init.zeros_(self.lora_B)
def train(self, mode=True):
super(lora.ConvLoRA, self).train(mode)
if mode:
if self.merge_weights and self.merged:
if self.r > 0:
# Make sure that the weights are not merged
self.conv.weight.data -= (self.lora_B @ self.lora_A).view(self.conv.weight.shape) * self.scaling
self.merged = False
else:
if self.merge_weights and not self.merged:
if self.r > 0:
# Merge the weights and mark it
self.conv.weight.data += (self.lora_B @ self.lora_A).view(self.conv.weight.shape) * self.scaling
self.merged = True
def forward(self, x, output_size = None):
if self.r > 0 and not self.merged:
num_spatial_dims = 2
output_padding = self.conv._output_padding(
input = x, output_size = output_size, stride = self.conv.stride, padding = self.conv.padding, kernel_size = self.conv.kernel_size,
dilation = self.conv.dilation)
return F.conv_transpose2d(
x, self.conv.weight + (self.lora_B @ self.lora_A).view(self.conv.weight.shape) * self.scaling, self.conv.bias, self.conv.stride, self.conv.padding,output_padding, self.conv.groups, self.conv.dilation)
return self.conv(x, output_size)
from lora.
I keep getting error "conv object has no attribute '_output_padding', do you know how I could solve this?
from lora.
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from lora.