pytorchtorch

Fixing the seed for torch random_split()

Is it possible to fix the seed for torch.utils.data.random_split() when splitting a dataset so that it is possible to reproduce the test results?

Solution

  • EDIT: This answer, while still factually correct, is now obsolete. See comment below and an answer by Matteo Pennisi

    You can use torch.manual_seed function to seed the script globally:

    import torch
torch.manual_seed(0)

    See reproducibility documentation for more information.

    If you want to specifically seed torch.utils.data.random_split you could "reset" the seed to it's initial value afterwards. Simply use torch.initial_seed() like this:

    torch.manual_seed(torch.initial_seed())

    AFAIK pytorch does not provide arguments like seed or random_state (which could be seen in sklearn for example).