PyG两个data Datsaset v.s. InMemoryDataset
可以看到InMemoryDataset 对CPU更加友好
https://pytorch-geometric.readthedocs.io/en/latest/modules/data.html#pytorch-lightning-wrappers
可以看到InMemoryDataset 对CPU更加友好
https://pytorch-geometric.readthedocs.io/en/latest/modules/data.html#pytorch-lightning-wrappers