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3 Commits
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483004dd1d | ||
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00a5d08103 | ||
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d043997d30 |
@@ -41,9 +41,8 @@ def manual_stochastic_round_to_float8(x, dtype, generator=None):
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(2.0 ** (exponent - EXPONENT_BIAS)) * (1.0 + abs_x),
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(2.0 ** (-EXPONENT_BIAS + 1)) * abs_x
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)
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del abs_x
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return sign.to(dtype=dtype)
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return sign
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@@ -57,6 +56,11 @@ def stochastic_rounding(value, dtype, seed=0):
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if dtype == torch.float8_e4m3fn or dtype == torch.float8_e5m2:
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generator = torch.Generator(device=value.device)
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generator.manual_seed(seed)
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return manual_stochastic_round_to_float8(value, dtype, generator=generator)
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output = torch.empty_like(value, dtype=dtype)
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num_slices = max(1, (value.numel() / (4096 * 4096)))
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slice_size = max(1, round(value.shape[0] / num_slices))
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for i in range(0, value.shape[0], slice_size):
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output[i:i+slice_size].copy_(manual_stochastic_round_to_float8(value[i:i+slice_size], dtype, generator=generator))
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return output
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return value.to(dtype=dtype)
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@@ -324,6 +324,7 @@ def model_lora_keys_unet(model, key_map={}):
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to = diffusers_keys[k]
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key_map["transformer.{}".format(k[:-len(".weight")])] = to #simpletrainer and probably regular diffusers flux lora format
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key_map["lycoris_{}".format(k[:-len(".weight")].replace(".", "_"))] = to #simpletrainer lycoris
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key_map["lora_transformer_{}".format(k[:-len(".weight")].replace(".", "_"))] = to #onetrainer
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return key_map
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@@ -527,20 +528,40 @@ def calculate_weight(patches, weight, key, intermediate_dtype=torch.float32):
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except Exception as e:
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logging.error("ERROR {} {} {}".format(patch_type, key, e))
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elif patch_type == "glora":
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if v[4] is not None:
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alpha = v[4] / v[0].shape[0]
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else:
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alpha = 1.0
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dora_scale = v[5]
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old_glora = False
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if v[3].shape[1] == v[2].shape[0] == v[0].shape[0] == v[1].shape[1]:
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rank = v[0].shape[0]
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old_glora = True
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if v[3].shape[0] == v[2].shape[1] == v[0].shape[1] == v[1].shape[0]:
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if old_glora and v[1].shape[0] == weight.shape[0] and weight.shape[0] == weight.shape[1]:
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pass
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else:
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old_glora = False
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rank = v[1].shape[0]
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a1 = comfy.model_management.cast_to_device(v[0].flatten(start_dim=1), weight.device, intermediate_dtype)
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a2 = comfy.model_management.cast_to_device(v[1].flatten(start_dim=1), weight.device, intermediate_dtype)
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b1 = comfy.model_management.cast_to_device(v[2].flatten(start_dim=1), weight.device, intermediate_dtype)
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b2 = comfy.model_management.cast_to_device(v[3].flatten(start_dim=1), weight.device, intermediate_dtype)
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if v[4] is not None:
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alpha = v[4] / rank
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else:
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alpha = 1.0
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try:
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lora_diff = (torch.mm(b2, b1) + torch.mm(torch.mm(weight.flatten(start_dim=1).to(dtype=intermediate_dtype), a2), a1)).reshape(weight.shape)
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if old_glora:
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lora_diff = (torch.mm(b2, b1) + torch.mm(torch.mm(weight.flatten(start_dim=1).to(dtype=intermediate_dtype), a2), a1)).reshape(weight.shape) #old lycoris glora
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else:
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if weight.dim() > 2:
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lora_diff = torch.einsum("o i ..., i j -> o j ...", torch.einsum("o i ..., i j -> o j ...", weight.to(dtype=intermediate_dtype), a1), a2).reshape(weight.shape)
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else:
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lora_diff = torch.mm(torch.mm(weight.to(dtype=intermediate_dtype), a1), a2).reshape(weight.shape)
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lora_diff += torch.mm(b1, b2).reshape(weight.shape)
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if dora_scale is not None:
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weight = function(weight_decompose(dora_scale, weight, lora_diff, alpha, strength, intermediate_dtype))
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else:
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