stable-diffusion-webui/extensions-builtin/Lora/network_ia3.py

31 lines
933 B
Python

import network
class ModuleTypeIa3(network.ModuleType):
def create_module(self, net: network.Network, weights: network.NetworkWeights):
if all(x in weights.w for x in ["weight"]):
return NetworkModuleIa3(net, weights)
return None
class NetworkModuleIa3(network.NetworkModule):
def __init__(self, net: network.Network, weights: network.NetworkWeights):
super().__init__(net, weights)
self.w = weights.w["weight"]
self.on_input = weights.w["on_input"].item()
def calc_updown(self, orig_weight):
w = self.w.to(orig_weight.device, dtype=orig_weight.dtype)
output_shape = [w.size(0), orig_weight.size(1)]
if self.on_input:
output_shape.reverse()
else:
w = w.reshape(-1, 1)
updown = orig_weight * w
return self.finalize_updown(updown, orig_weight, output_shape)