Enable gpu scheduler in AML mode (microsoft#2769)

docs/en_US/TrainingService/AMLMode.md

@@ -49,30 +49,34 @@ tuner:
 trial:
   command: python3 mnist.py
   codeDir: .
-  computeTarget: ${replace_to_your_computeTarget}
   image: msranni/nni
+  gpuNum: 1
 amlConfig:
   subscriptionId: ${replace_to_your_subscriptionId}
   resourceGroup: ${replace_to_your_resourceGroup}
   workspaceName: ${replace_to_your_workspaceName}
-
+  computeTarget: ${replace_to_your_computeTarget}
 ```
 
 Note: You should set `trainingServicePlatform: aml` in NNI config YAML file if you want to start experiment in aml mode.
 
 Compared with [LocalMode](LocalMode.md) trial configuration in aml mode have these additional keys:
-* computeTarget
-    * required key. The compute cluster name you want to use in your AML workspace. See Step 6.
 * image
     * required key. The docker image name used in job. The image `msranni/nni` of this example only support GPU computeTargets.
 
 amlConfig:
 * subscriptionId
-    * the subscriptionId of your account
+    * required key, the subscriptionId of your account
 * resourceGroup
-    * the resourceGroup of your account
+    * required key, the resourceGroup of your account
 * workspaceName
-    * the workspaceName of your account
+    * required key, the workspaceName of your account
+* computeTarget
+    * required key, the compute cluster name you want to use in your AML workspace. See Step 6.
+* maxTrialNumPerGpu
+    * optional key, used to specify the max concurrency trial number on a GPU device.
+* useActiveGpu
+    * optional key, used to specify whether to use a GPU if there is another process. By default, NNI will use the GPU only if there is no other active process in the GPU.
 
 The required information of amlConfig could be found in the downloaded `config.json` in Step 5.
 

src/nni_manager/rest_server/restValidationSchemas.ts

@@ -39,7 +39,6 @@ export namespace ValidationSchemas {
                 nniManagerNFSMountPath: joi.string().min(1),
                 containerNFSMountPath: joi.string().min(1),
                 paiConfigPath: joi.string(),
-                computeTarget: joi.string(),
                 nodeCount: joi.number(),
                 paiStorageConfigName: joi.string().min(1),
                 nasMode: joi.string().valid('classic_mode', 'enas_mode', 'oneshot_mode', 'darts_mode'),
@@ -159,7 +158,10 @@ export namespace ValidationSchemas {
             aml_config: joi.object({ // eslint-disable-line @typescript-eslint/camelcase
                 subscriptionId: joi.string().min(1),
                 resourceGroup: joi.string().min(1),
-                workspaceName: joi.string().min(1)
+                workspaceName: joi.string().min(1),
+                computeTarget: joi.string().min(1),
+                maxTrialNumPerGpu: joi.number(),
+                useActiveGpu: joi.boolean()
             }),
             nni_manager_ip: joi.object({ // eslint-disable-line @typescript-eslint/camelcase
                 nniManagerIp: joi.string().min(1)

src/nni_manager/training_service/reusable/aml/amlConfig.ts

@@ -11,26 +11,31 @@ export class AMLClusterConfig {
     public readonly subscriptionId: string;
     public readonly resourceGroup: string;
     public readonly workspaceName: string;
+    public readonly computeTarget: string;
+    public useActiveGpu?: boolean;
+    public maxTrialNumPerGpu?: number;
 
-    constructor(subscriptionId: string, resourceGroup: string, workspaceName: string) {
+    constructor(subscriptionId: string, resourceGroup: string, workspaceName: string, computeTarget: string,
+                useActiveGpu?: boolean, maxTrialNumPerGpu?: number) {
         this.subscriptionId = subscriptionId;
         this.resourceGroup = resourceGroup;
         this.workspaceName = workspaceName;
+        this.computeTarget = computeTarget;
+        this.useActiveGpu = useActiveGpu;
+        this.maxTrialNumPerGpu = maxTrialNumPerGpu;
     }
 }
 
 export class AMLTrialConfig extends TrialConfig {
     public readonly image: string;
     public readonly command: string;
     public readonly codeDir: string;
-    public readonly computeTarget: string;
 
-    constructor(codeDir: string, command: string, image: string, computeTarget: string) {
+    constructor(codeDir: string, command: string, image: string) {
         super("", codeDir, 0);
         this.codeDir = codeDir;
         this.command = command;
         this.image = image;
-        this.computeTarget = computeTarget;
     }
 }
 

src/nni_manager/training_service/reusable/environments/amlEnvironmentService.ts

@@ -112,13 +112,15 @@ export class AMLEnvironmentService extends EnvironmentService {
         const amlEnvironment: AMLEnvironmentInformation = environment as AMLEnvironmentInformation;
         const environmentLocalTempFolder = path.join(this.experimentRootDir, this.experimentId, "environment-temp");
         environment.command = `import os\nos.system('${amlEnvironment.command}')`;
+        environment.useActiveGpu = this.amlClusterConfig.useActiveGpu;
+        environment.maxTrialNumberPerGpu = this.amlClusterConfig.maxTrialNumPerGpu;
         await fs.promises.writeFile(path.join(environmentLocalTempFolder, 'nni_script.py'), amlEnvironment.command, { encoding: 'utf8' });
         const amlClient = new AMLClient(
             this.amlClusterConfig.subscriptionId,
             this.amlClusterConfig.resourceGroup,
             this.amlClusterConfig.workspaceName,
             this.experimentId,
-            this.amlTrialConfig.computeTarget,
+            this.amlClusterConfig.computeTarget,
             this.amlTrialConfig.image,
             'nni_script.py',
             environmentLocalTempFolder

tools/nni_cmd/config_schema.py

@@ -245,7 +245,7 @@ def validate(self, data):
         'codeDir': setPathCheck('codeDir'),
         'command': setType('command', str),
         'image': setType('image', str),
-        'computeTarget': setType('computeTarget', str)
+        Optional('gpuNum'): setNumberRange('gpuNum', int, 0, 99999),
     }
 }
 
@@ -254,6 +254,9 @@ def validate(self, data):
         'subscriptionId': setType('subscriptionId', str),
         'resourceGroup': setType('resourceGroup', str),
         'workspaceName': setType('workspaceName', str),
+        'computeTarget': setType('computeTarget', str),
+        Optional('maxTrialNumPerGpu'): setType('maxTrialNumPerGpu', int),
+        Optional('useActiveGpu'): setType('useActiveGpu', bool),
     }
 }