From 134923b78d0bf30e44e9f7ba54a24e4da539ea3a Mon Sep 17 00:00:00 2001 From: Glenn Jocher Date: Mon, 27 Jun 2022 16:05:41 +0200 Subject: [PATCH] Fix bias warmup LR init Per https://github.com/ultralytics/yolov5/issues/8352 --- train.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/train.py b/train.py index a06ad5a418f8..e1393213bb4b 100644 --- a/train.py +++ b/train.py @@ -335,7 +335,7 @@ def train(hyp, opt, device, callbacks): # hyp is path/to/hyp.yaml or hyp dictio accumulate = max(1, np.interp(ni, xi, [1, nbs / batch_size]).round()) for j, x in enumerate(optimizer.param_groups): # bias lr falls from 0.1 to lr0, all other lrs rise from 0.0 to lr0 - x['lr'] = np.interp(ni, xi, [hyp['warmup_bias_lr'] if j == 2 else 0.0, x['initial_lr'] * lf(epoch)]) + x['lr'] = np.interp(ni, xi, [hyp['warmup_bias_lr'] if j == 0 else 0.0, x['initial_lr'] * lf(epoch)]) if 'momentum' in x: x['momentum'] = np.interp(ni, xi, [hyp['warmup_momentum'], hyp['momentum']])