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Fix MPS #3444

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Merged
merged 1 commit into from
Sep 5, 2025
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Fix MPS #3444

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6 changes: 3 additions & 3 deletions ignite/metrics/gan/fid.py
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Original file line number Diff line number Diff line change
Expand Up @@ -31,13 +31,13 @@ def fid_score(
except ImportError:
raise ModuleNotFoundError("fid_score requires scipy to be installed.")

mu1, mu2 = mu1.cpu(), mu2.cpu()
sigma1, sigma2 = sigma1.cpu(), sigma2.cpu()
mu1, mu2 = mu1.detach().cpu(), mu2.detach().cpu()
sigma1, sigma2 = sigma1.detach().cpu(), sigma2.detach().cpu()

diff = mu1 - mu2

# Product might be almost singular
covmean, _ = scipy.linalg.sqrtm(sigma1.mm(sigma2), disp=False)
covmean, _ = scipy.linalg.sqrtm(sigma1.mm(sigma2).numpy(), disp=False)
# Numerical error might give slight imaginary component
if np.iscomplexobj(covmean):
if not np.allclose(np.diagonal(covmean).imag, 0, atol=1e-3):
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