From 61e22fea87ff506aa77d4224412586155e12854d Mon Sep 17 00:00:00 2001
From: Earle Lowe <30607889+emlowe@users.noreply.github.com>
Date: Tue, 7 May 2024 21:02:30 -0700
Subject: [PATCH] Make sure to use no more than 61 cpus on windows (#17958)

* Make sure to use no more than 61 cpus on windows

* Type fix
---
 chia/util/misc.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/chia/util/misc.py b/chia/util/misc.py
index c147207ec5..79d5f7ef00 100644
--- a/chia/util/misc.py
+++ b/chia/util/misc.py
@@ -417,7 +417,12 @@ def available_logical_cores() -> int:
         assert count is not None
         return count
 
-    return len(psutil.Process().cpu_affinity())
+    cores = len(psutil.Process().cpu_affinity())
+
+    if sys.platform == "win32":
+        cores = min(61, cores)  # https://github.com/python/cpython/issues/89240
+
+    return cores
 
 
 def caller_file_and_line(distance: int = 1, relative_to: Iterable[Path] = ()) -> Tuple[str, int]: