From aa213b6306b20de32df21aa624398a8a2fc614e6 Mon Sep 17 00:00:00 2001
From: Thomas Viehmann <tv.code@beamnet.de>
Date: Fri, 8 Nov 2024 12:14:28 +0100
Subject: [PATCH] set USE_LIBUV=0 on windows

---
 src/lightning/fabric/__init__.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/lightning/fabric/__init__.py b/src/lightning/fabric/__init__.py
index 921d3d61e60fe..d675b21e5d1d2 100644
--- a/src/lightning/fabric/__init__.py
+++ b/src/lightning/fabric/__init__.py
@@ -2,6 +2,7 @@
 
 import logging
 import os
+import sys
 
 from lightning_utilities.core.imports import package_available
 
@@ -26,6 +27,10 @@
 # https://github.com/pytorch/pytorch/issues/83973
 os.environ["PYTORCH_NVML_BASED_CUDA_CHECK"] = "1"
 
+# see https://github.com/pytorch/pytorch/issues/139990
+if sys.platform == "win32":
+    os.environ["USE_LIBUV"] = "0"
+
 
 from lightning.fabric.fabric import Fabric  # noqa: E402
 from lightning.fabric.utilities.seed import seed_everything  # noqa: E402