Revert "Selectively install through pip (#139)" due to potential pip install issue (#142)

* Revert "Selectively install through pip (#139)"

This reverts commit 1d174836.

* Add exit code of subprocess for trial_keeper

* Update README, add link to PAImode doc

README.md

@@ -64,6 +64,7 @@ To learn more about how this example was constructed and how to analyze the expe
 * [Tuners supported by NNI.](src/sdk/pynni/nni/README.md)
 * [How to enable early stop (i.e. assessor) in an experiment?](docs/EnableAssessor.md)
 * [How to run an experiment on multiple machines?](docs/RemoteMachineMode.md)
+* [How to run an experiment on OpenPAI?](docs/PAIMode.md)
 * [How to write a customized tuner?](docs/CustomizedTuner.md)
 * [How to write a customized assessor?](examples/assessors/README.md)
 * [How to resume an experiment?](docs/NNICTLDOC.md)

setup.py

@@ -29,35 +29,9 @@ def read(fname):
 
 class CustomInstallCommand(install):
     '''a customized install class in pip module'''
-    user_options = install.user_options + [
-        ('sdk-only', None, '<add --sdk-only if you want to only install nni sdk')
-    ]
-
-    def initialize_options(self):
-        install.initialize_options(self)
-        self.sdk_only = None
-
-    def install_requires(self):
-        self.install_requires_list = [
-            'astor',
-            'hyperopt',
-            'json_tricks',
-            'numpy',
-            'psutil',
-            'pyyaml',
-            'requests',
-            'scipy',
-            'schema',
-            'pyhdfs'
-        ]
-        for pkg in self.install_requires_list:
-            subprocess.run(['python3', '-m', 'pip', 'install', pkg], check=True)
-
     def run(self):
         super().run()
-        if self.sdk_only is None:
-            subprocess.run(['make', 'pip-install'], check=True)
-        self.install_requires()
+        subprocess.run(['make', 'pip-install'], check=True)
 
 setup(
     name = 'NNI',
@@ -78,7 +52,18 @@ setup(
     },
     package_data = {'nni': ['**/requirements.txt']},
     python_requires = '>=3.5',
-    
+    install_requires = [
+        'astor',
+        'hyperopt',
+        'json_tricks',
+        'numpy',
+        'psutil',
+        'pyyaml',
+        'requests',
+        'scipy',
+        'schema',
+        'pyhdfs'
+    ],
 
     cmdclass={
         'install': CustomInstallCommand

tools/trial_tool/trial_keeper.py

@@ -64,6 +64,9 @@ def main_loop(args):
                     print('copy directory failed!')
             except Exception as exception:
                 print(exception)
+
+            ## Exit as the retCode of subprocess(trial)
+            exit(retCode)
             break
         else:
             print('subprocess pid: {} is still alive'.format(process.pid))