pyg-team/pytorch_geometric
Laplacian Eigenvector PE is not deterministic
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#7.499 aberto em 2 de jun. de 2023
bugdeterminismhelp wantedtransform
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Description
Laplacian Eigenvector PE is not deterministic, i.e. it produces different encodings when applied to the same graph at different times even with everything seeded.
This is a code that reproduces it:
import torch
import random
import numpy as np
from torch_geometric.datasets import Planetoid
from torch_geometric.transforms import AddLaplacianEigenvectorPE
def seed_everything(seed: int):
random.seed(seed)
np.random.seed(seed)
torch.manual_seed(seed)
torch.cuda.manual_seed_all(seed)
seed_everything(42)
dataset = Planetoid(root='../datasets', name='Cora')
data = dataset[0]
lpe1 = AddLaplacianEigenvectorPE(k=124, attr_name="lpe1")
lpe2 = AddLaplacianEigenvectorPE(k=124, attr_name="lpe2")
# add lpe1
data = lpe1(data)
# add lpe2
data = lpe2(data)
# get pe
pe1 = data.lpe1
pe2 = data.lpe2
print(torch.allclose(pe1, pe2)) # prints False
# print for manual inspection
print(pe1[:5, :10])
print(pe2[:5, :10])
Environment
- PyG version: 2.3.1
- PyTorch version: 2.0.1+cu118
- OS: Linux (Ubuntu 20.04)
- Python version: 3.10
- CUDA/cuDNN version: 12.0
- How you installed PyTorch and PyG (
conda,pip, source): pip. - Any other relevant information (e.g., version of
torch-scatter): None.