From 46b0d230e7c13e247eabb22e1103ce512e7ed6b1 Mon Sep 17 00:00:00 2001
From: AUTOMATIC <16777216c@gmail.com>
Date: Sat, 3 Dec 2022 16:01:23 +0300
Subject: [PATCH] add comment for #4407 and remove seemingly unnecessary
 cudnn.enabled

---
 modules/devices.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/devices.py b/modules/devices.py
index 547ea46c..d6a76844 100644
--- a/modules/devices.py
+++ b/modules/devices.py
@@ -53,9 +53,11 @@ def torch_gc():
 
 def enable_tf32():
     if torch.cuda.is_available():
+
+        # enabling benchmark option seems to enable a range of cards to do fp16 when they otherwise can't
+        # see https://github.com/AUTOMATIC1111/stable-diffusion-webui/pull/4407
         if any([torch.cuda.get_device_capability(devid) == (7, 5) for devid in range(0, torch.cuda.device_count())]):
             torch.backends.cudnn.benchmark = True
-            torch.backends.cudnn.enabled = True
 
         torch.backends.cuda.matmul.allow_tf32 = True
         torch.backends.cudnn.allow_tf32 = True