From 47f265dde27d89cd1bd941bb9861a22334e2dcfa Mon Sep 17 00:00:00 2001
From: Glenn Jocher <glenn.jocher@ultralytics.com>
Date: Thu, 24 Feb 2022 23:37:25 +0100
Subject: [PATCH] Update min warmup iterations from 1k to 100 (#6768)

---
 train.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/train.py b/train.py
index d8df31b72..60be962d4 100644
--- a/train.py
+++ b/train.py
@@ -268,7 +268,7 @@ def train(hyp,  # path/to/hyp.yaml or hyp dictionary
 
     # Start training
     t0 = time.time()
-    nw = max(round(hyp['warmup_epochs'] * nb), 1000)  # number of warmup iterations, max(3 epochs, 1k iterations)
+    nw = max(round(hyp['warmup_epochs'] * nb), 100)  # number of warmup iterations, max(3 epochs, 100 iterations)
     # nw = min(nw, (epochs - start_epoch) / 2 * nb)  # limit warmup to < 1/2 of training
     last_opt_step = -1
     maps = np.zeros(nc)  # mAP per class