support frameworkcontroller log (#572)

support frameworkcontroller log

examples/trials/mnist/config_frameworkcontroller.yml

+authorName: default
+experimentName: example_mnist
+trialConcurrency: 1
+maxExecDuration: 1h
+maxTrialNum: 10
+#choice: local, remote, pai, kubeflow
+trainingServicePlatform: frameworkcontroller
+searchSpacePath: search_space.json
+#choice: true, false
+useAnnotation: false
+tuner:
+  #choice: TPE, Random, Anneal, Evolution
+  builtinTunerName: TPE
+  classArgs:
+    #choice: maximize, minimize
+    optimize_mode: maximize
+assessor:
+  builtinAssessorName: Medianstop
+  classArgs:
+    optimize_mode: maximize
+  gpuNum: 0
+trial:
+  codeDir: .
+  taskRoles:
+    - name: worker
+      taskNum: 1
+      command: python3 mnist.py
+      gpuNum: 1
+      cpuNum: 1
+      memoryMB: 8192
+      image: msranni/nni:latest
+      frameworkAttemptCompletionPolicy:
+        minFailedTaskCount: 1
+        minSucceededTaskCount: 1
+frameworkcontrollerConfig:
+  storage: nfs
+  nfs:
+    # Your NFS server IP, like 10.10.10.10
+    server: {your_nfs_server_ip}
+    # Your NFS server export path, like /var/nfs/nni
+    path: {your_nfs_server_export_path}
\ No newline at end of file

src/sdk/pynni/nni/platform/local.py

@@ -36,7 +36,7 @@ if not os.path.exists(_outputdir):
     os.makedirs(_outputdir)
 
 _nni_platform = os.environ['NNI_PLATFORM']
-if _nni_platform not in ['pai', 'kubeflow']:
+if _nni_platform not in ['pai', 'kubeflow', 'frameworkcontroller']:
    _log_file_path = os.path.join(_outputdir, 'trial.log')
    init_logger(_log_file_path)
 
@@ -77,7 +77,7 @@ def get_next_parameter():
     return params
 
 def send_metric(string):
-    if _nni_platform in ['pai', 'kubeflow']:
+    if _nni_platform in ['pai', 'kubeflow', 'frameworkcontroller']:
         data = (string).encode('utf8')
         assert len(data) < 1000000, 'Metric too long'    
         print('NNISDK_ME%s' % (data))