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Better s2v memory estimation. (#9584)

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comfyanonymous
2025-08-27 16:02:42 -07:00
committed by GitHub
parent 496888fd68
commit 491755325c
2 changed files with 25 additions and 2 deletions
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2
comfy/ldm/wan/model.py
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@@ -1278,6 +1278,7 @@ class WanModel_S2V(WanModel):
x = torch.cat([x, ref], dim=1)
freqs = torch.cat([freqs, freqs_ref], dim=1)
t = torch.cat([t, torch.zeros((t.shape[0], reference_latent.shape[-3]), device=t.device, dtype=t.dtype)], dim=1)
del ref, freqs_ref
if reference_motion is not None:
motion_encoded, freqs_motion = self.frame_packer(reference_motion, self)
@@ -1287,6 +1288,7 @@ class WanModel_S2V(WanModel):
t = torch.repeat_interleave(t, 2, dim=1)
t = torch.cat([t, torch.zeros((t.shape[0], 3), device=t.device, dtype=t.dtype)], dim=1)
del motion_encoded, freqs_motion
# time embeddings
e = self.time_embedding(

23
comfy/model_base.py
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@@ -150,6 +150,7 @@ class BaseModel(torch.nn.Module):
logging.debug("adm {}".format(self.adm_channels))
self.memory_usage_factor = model_config.memory_usage_factor
self.memory_usage_factor_conds = ()
self.memory_usage_shape_process = {}
def apply_model(self, x, t, c_concat=None, c_crossattn=None, control=None, transformer_options={}, **kwargs):
return comfy.patcher_extension.WrapperExecutor.new_class_executor(
@@ -350,7 +351,14 @@ class BaseModel(torch.nn.Module):
input_shapes = [input_shape]
for c in self.memory_usage_factor_conds:
shape = cond_shapes.get(c, None)
if shape is not None and len(shape) > 0:
if shape is not None:
if c in self.memory_usage_shape_process:
out = []
for s in shape:
out.append(self.memory_usage_shape_process[c](s))
shape = out
if len(shape) > 0:
input_shapes += shape
if comfy.model_management.xformers_enabled() or comfy.model_management.pytorch_attention_flash_attention():
@@ -1204,6 +1212,8 @@ class WAN21_Camera(WAN21):
class WAN22_S2V(WAN21):
def __init__(self, model_config, model_type=ModelType.FLOW, device=None):
super(WAN21, self).__init__(model_config, model_type, device=device, unet_model=comfy.ldm.wan.model.WanModel_S2V)
self.memory_usage_factor_conds = ("reference_latent", "reference_motion")
self.memory_usage_shape_process = {"reference_motion": lambda shape: [shape[0], shape[1], 1.5, shape[-2], shape[-1]]}
def extra_conds(self, **kwargs):
out = super().extra_conds(**kwargs)
@@ -1224,6 +1234,17 @@ class WAN22_S2V(WAN21):
out['control_video'] = comfy.conds.CONDRegular(self.process_latent_in(control_video))
return out
def extra_conds_shapes(self, **kwargs):
out = {}
ref_latents = kwargs.get("reference_latents", None)
if ref_latents is not None:
out['reference_latent'] = list([1, 16, sum(map(lambda a: math.prod(a.size()), ref_latents)) // 16])
reference_motion = kwargs.get("reference_motion", None)
if reference_motion is not None:
out['reference_motion'] = reference_motion.shape
return out
class WAN22(BaseModel):
def __init__(self, model_config, model_type=ModelType.FLOW, image_to_video=False, device=None):
super().__init__(model_config, model_type, device=device, unet_model=comfy.ldm.wan.model.WanModel)