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Hongzhi (Steve), Chen 704bcaf6dd examples (#5323)
Co-authored-by: Ubuntu <ubuntu@ip-172-31-28-63.ap-northeast-1.compute.internal>
2023-02-19 08:35:15 +08:00

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Python

"""DataLoader utils."""
import dgl
from gluoncv.data.batchify import Pad
from mxnet import nd
def dgl_mp_batchify_fn(data):
if isinstance(data[0], tuple):
data = zip(*data)
return [dgl_mp_batchify_fn(i) for i in data]
for dt in data:
if dt is not None:
if isinstance(dt, dgl.DGLGraph):
return [d for d in data if isinstance(d, dgl.DGLGraph)]
elif isinstance(dt, nd.NDArray):
pad = Pad(axis=(1, 2), num_shards=1, ret_length=False)
data_list = [dt for dt in data if dt is not None]
return pad(data_list)