diff --git a/README.md b/README.md
index 3a40763..c52c0a1 100644
--- a/README.md
+++ b/README.md
@@ -3,13 +3,13 @@
 </p>
 
 # dockerjudge
-[![Build Status](https://www.travis-ci.org/wangxinhe2006/dockerjudge.svg)](https://www.travis-ci.org/wangxinhe2006/dockerjudge)
-[![CodeCov](https://codecov.io/gh/wangxinhe2006/dockerjudge/graph/badge.svg)](https://codecov.io/gh/wangxinhe2006/dockerjudge)
+[![Build Status](https://www.travis-ci.org/piterator-org/dockerjudge.svg)](https://www.travis-ci.org/piterator-org/dockerjudge)
+[![CodeCov](https://codecov.io/gh/piterator-org/dockerjudge/graph/badge.svg)](https://codecov.io/gh/piterator-org/dockerjudge)
 [![Python Version](https://img.shields.io/pypi/pyversions/dockerjudge.svg)](https://www.python.org/downloads/)
-[![GitHub pre-release](https://img.shields.io/github/release-pre/wangxinhe2006/dockerjudge.svg)](https://github.com/wangxinhe2006/dockerjudge/releases)
+[![GitHub pre-release](https://img.shields.io/github/release-pre/piterator-org/dockerjudge.svg)](https://github.com/piterator-org/dockerjudge/releases)
 [![PyPI](https://img.shields.io/pypi/v/dockerjudge.svg)](https://pypi.org/project/dockerjudge/#history)
 [![Wheel](https://img.shields.io/pypi/wheel/dockerjudge.svg)](https://pypi.org/project/dockerjudge/#files)
-[![License](https://img.shields.io/github/license/wangxinhe2006/dockerjudge.svg)](LICENSE)
+[![License](https://img.shields.io/github/license/piterator-org/dockerjudge.svg)](LICENSE)
 
 A Docker Based Online Judge Engine
 
@@ -31,11 +31,11 @@ easy_install dockerjudge
 ```
 
 ### From [GitHub](https://github.com/)
-[wangxinhe2006/dockerjudge: A Docker Based Online Judge Engine](https://github.com/wangxinhe2006/dockerjudge)
-- HTTPS: `https://github.com/wangxinhe2006/dockerjudge.git`
-- SSH: `git@github.com:wangxinhe2006/dockerjudge.git`
+[wangxinhe2006/dockerjudge: A Docker Based Online Judge Engine](https://github.com/piterator-org/dockerjudge)
+- HTTPS: `https://github.com/piterator-org/dockerjudge.git`
+- SSH: `git@github.com:piterator-org/dockerjudge.git`
 ```sh
-git clone https://github.com/wangxinhe2006/dockerjudge.git
+git clone https://github.com/piterator-org/dockerjudge.git
 cd dockerjudge
 python3 setup.py install
 ```
diff --git a/dockerjudge/__init__.py b/dockerjudge/__init__.py
index 268202b..c08ec11 100644
--- a/dockerjudge/__init__.py
+++ b/dockerjudge/__init__.py
@@ -1,5 +1,6 @@
 'dockerjudge - A Docker Based Online Judge Engine'
 
+import math
 from pprint import pprint
 import re
 import shlex
@@ -9,7 +10,7 @@
 import docker
 import ruamel.yaml
 
-__version__ = '0.7.2'
+__version__ = '0.8.0'
 
 
 class Thread(threading.Thread):
@@ -79,9 +80,11 @@ def _judge(dir, container, commands, ioput, timeout, iofile) -> (str, float):
 
 
 def judge(settings, source='', tests=[], timeout=1, iofile=(None, None),
-          callback={}, client=docker.from_env()):
+          callback={}, split=0, client=docker.from_env()):
     'Main judge function'
     tests = list(tests)
+    if not split:
+        split = len(tests)
     container = client.containers.run(settings['image'], detach=True,
                                       network_disabled=True, tty=True)
     try:
@@ -94,21 +97,22 @@ def judge(settings, source='', tests=[], timeout=1, iofile=(None, None),
         if compiler.exit_code:
             result = [('CE', .0) for test in tests]
         else:
-            threads = []
-            for i in range(len(tests)):
-                thread = Thread(target=_judge,
-                                args=(i, container,
-                                      (settings.get('before_judging'),
-                                       settings['judge'],
-                                       settings.get('after_judging')),
-                                      tests[i], timeout, iofile),
-                                callback=callback.get('judging'))
-                thread.start()
-                threads.append(thread)
             result = []
-            for thread in threads:
-                thread.join()
-                result.append(thread.return_value)
+            for i in range(math.ceil(len(tests) / split)):
+                threads = []
+                for j in range(i * split, min((i + 1) * split, len(tests))):
+                    thread = Thread(target=_judge,
+                                    args=(j, container,
+                                          (settings.get('before_judging'),
+                                           settings['judge'],
+                                           settings.get('after_judging')),
+                                          tests[j], timeout, iofile),
+                                    callback=callback.get('judging'))
+                    thread.start()
+                    threads.append(thread)
+                for thread in threads:
+                    thread.join()
+                    result.append(thread.return_value)
         return [result, (compiler.output[1] or b'').decode()]
     finally:
         container.remove(force=True)
diff --git a/tests.py b/tests.py
index b89a5c6..3d51db3 100644
--- a/tests.py
+++ b/tests.py
@@ -1,3 +1,4 @@
+from time import time
 import unittest
 
 from dockerjudge import judge
@@ -167,6 +168,25 @@ def judging_callback(id, status, duration):
         self.assertEqual(result[0][2][0], 'RE')
         self.assertFalse(result[1])
 
+    def test_split(self):
+        t = time()
+        result = judge({'image': 'gcc:4.8',
+                        'source': 'a.cpp',
+                        'compile': 'g++ a.cpp',
+                        'judge': '%s/a.out'},
+                       r'#include <stdio.h>''\n'
+                       r'int main() {''\n'
+                       r'    while (true)''\n'
+                       r'        ;''\n'
+                       r'}''\n',
+                       [('', '')] * 3,
+                       3, split=2)
+        self.assertEqual(result[0][0][0], 'TLE')
+        self.assertEqual(result[0][1][0], 'TLE')
+        self.assertEqual(result[0][2][0], 'TLE')
+        self.assertGreater(time() - t, 6)
+        self.assertFalse(result[1])
+
 
 if __name__ == '__main__':
     unittest.main()