Fix model replication issue when using PointNet2SetAbstraction with nn.DataParallel #305
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When using
nn.DataParallel
, modules registered insidePointNet2SetAbstraction
'sself.sub_modules
are replicated to different devices, and the objects (tuple ofgrouper
,pointnet
,num_samples
) inself.layers
remain on the first device. This causes issues when working withnn.DataParallel
.This fix removes the helper attribute of
self.layers
and directly uses the submodules registered withnn.ModuleList
in the forward pass.