Unverified Commit 6594f862 authored by Kai Chen's avatar Kai Chen Committed by GitHub
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Merge pull request #194 from patrick-12sigma/patch-2

Update TECHNICAL_DETAILS.md
parents 322e6b33 488e7333
......@@ -82,7 +82,7 @@ which defines the following abstract methods.
- `extract_feat()`: given an image batch of shape (n, c, h, w), extract the feature map(s).
- `forward_train()`: forward method of the training mode
- `simple_test()`: single scale testing without augmentation
- `aug_test()`: testing without augmentation (multi-scale, flip, etc.)
- `aug_test()`: testing with augmentation (multi-scale, flip, etc.)
[TwoStageDetector](https://github.com/hellock/mmdetection/blob/master/mmdet/models/detectors/two_stage.py)
is a good example which shows how to do that.
......@@ -96,4 +96,4 @@ Each process keeps an isolated model, data loader, and optimizer.
Model parameters are only synchronized once at the begining.
After a forward and backward pass, gradients will be allreduced among all GPUs,
and the optimizer will update model parameters.
Since the gradients are allreduced, the model parameter stays the same for all processes after the iteration.
\ No newline at end of file
Since the gradients are allreduced, the model parameter stays the same for all processes after the iteration.
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