From 3f096441810704831a7268b9d52d73143c7ccc6d Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 4 Mar 2008 03:08:01 +0000
Subject: [PATCH] Fix #550

---
 src/libprs500/__init__.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/libprs500/__init__.py b/src/libprs500/__init__.py
index 2949967755..b89a75e807 100644
--- a/src/libprs500/__init__.py
+++ b/src/libprs500/__init__.py
@@ -248,6 +248,13 @@ def sanitize_file_name(name):
 
 def detect_ncpus():
     """Detects the number of effective CPUs in the system"""
+    try:
+        from PyQt4.QtCore import QThread
+        ans = QThread.idealThreadCount()
+        if ans > 0:
+            return ans
+    except:
+        pass
     #for Linux, Unix and MacOS
     if hasattr(os, "sysconf"):
         if os.sysconf_names.has_key("SC_NPROCESSORS_ONLN"):