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Update network_oft.py

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Kohaku-Blueleaf 2024-02-20 17:20:14 +08:00
parent 0a271938d8
commit a5436a3ac0
1 changed files with 19 additions and 21 deletions
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40
extensions-builtin/Lora/network_oft.py
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@ -22,24 +22,24 @@ class NetworkModuleOFT(network.NetworkModule):
self.org_module: list[torch.Module] = [self.sd_module]
self.scale = 1.0
self.is_kohya = False
self.is_R = False
self.is_boft = False
# kohya-ss
# kohya-ss/New LyCORIS OFT/BOFT
if "oft_blocks" in weights.w.keys():
self.is_kohya = True
self.oft_blocks = weights.w["oft_blocks"] # (num_blocks, block_size, block_size)
self.alpha = weights.w["alpha"] # alpha is constraint
self.alpha = weights.w.get("alpha", self.alpha) # alpha is constraint
self.dim = self.oft_blocks.shape[0] # lora dim
# LyCORIS OFT
# Old LyCORIS OFT
elif "oft_diag" in weights.w.keys():
self.is_R = True
self.oft_blocks = weights.w["oft_diag"]
# self.alpha is unused
self.dim = self.oft_blocks.shape[1] # (num_blocks, block_size, block_size)
# LyCORIS BOFT
if weights.w["oft_diag"].dim() == 4:
self.is_boft = True
# LyCORIS BOFT
if self.oft_blocks.dim() == 4:
self.is_boft = True
self.rescale = weights.w.get('rescale', None)
if self.rescale is not None:
self.rescale = self.rescale.reshape(-1, *[1]*(self.org_module[0].weight.dim() - 1))
@ -55,26 +55,24 @@ class NetworkModuleOFT(network.NetworkModule):
elif is_other_linear:
self.out_dim = self.sd_module.embed_dim
if self.is_kohya:
self.constraint = self.alpha * self.out_dim
self.num_blocks = self.dim
self.block_size = self.out_dim // self.dim
self.num_blocks = self.dim
self.block_size = self.out_dim // self.dim
self.constraint = (1 if self.alpha is None else self.alpha) * self.out_dim
if self.is_R:
self.constraint = None
self.block_size = self.dim
self.num_blocks = self.out_dim // self.dim
elif self.is_boft:
self.constraint = None
self.boft_m = weights.w["oft_diag"].shape[0]
self.block_num = weights.w["oft_diag"].shape[1]
self.block_size = weights.w["oft_diag"].shape[2]
self.boft_m = self.oft_blocks.shape[0]
self.num_blocks = self.oft_blocks.shape[1]
self.block_size = self.oft_blocks.shape[2]
self.boft_b = self.block_size
#self.block_size, self.block_num = butterfly_factor(self.out_dim, self.dim)
else:
self.constraint = None
self.block_size, self.num_blocks = factorization(self.out_dim, self.dim)
def calc_updown(self, orig_weight):
oft_blocks = self.oft_blocks.to(orig_weight.device)
eye = torch.eye(self.block_size, device=oft_blocks.device)
if self.is_kohya:
if not self.is_R:
block_Q = oft_blocks - oft_blocks.transpose(1, 2) # ensure skew-symmetric orthogonal matrix
norm_Q = torch.norm(block_Q.flatten())
new_norm_Q = torch.clamp(norm_Q, max=self.constraint.to(oft_blocks.device))