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Add missing check for empty tensors #65

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Add missing check for empty tensors #65

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b95784f
add missing check for empty tensors
ilikenwf May 20, 2023
d4cf787
oops
ilikenwf May 20, 2023
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9 changes: 8 additions & 1 deletion k_diffusion/sampling.py
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Original file line number Diff line number Diff line change
Expand Up @@ -542,7 +542,14 @@ def sample_dpmpp_2s_ancestral(model, x, sigmas, extra_args=None, callback=None,
@torch.no_grad()
def sample_dpmpp_sde(model, x, sigmas, extra_args=None, callback=None, disable=None, eta=1., s_noise=1., noise_sampler=None, r=1 / 2):
"""DPM-Solver++ (stochastic)."""
sigma_min, sigma_max = sigmas[sigmas > 0].min(), sigmas.max()
positive_sigmas = sigmas[sigmas > 0]

if positive_sigmas.numel() > 0:
sigma_min = positive_sigmas.min(dim=0)[0]
else:
sigma_min = 0

sigma_max = sigmas.max()
noise_sampler = BrownianTreeNoiseSampler(x, sigma_min, sigma_max) if noise_sampler is None else noise_sampler
extra_args = {} if extra_args is None else extra_args
s_in = x.new_ones([x.shape[0]])
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