Implement API for user to import data and export data of type `json` or `csv` (#980)

src/nni_manager/common/datastore.ts

@@ -22,7 +22,7 @@
 import { ExperimentProfile, TrialJobStatistics } from './manager';
 import { TrialJobDetail, TrialJobStatus } from './trainingService';
 
-type TrialJobEvent = TrialJobStatus | 'USER_TO_CANCEL' | 'ADD_CUSTOMIZED' | 'ADD_HYPERPARAMETER';
+type TrialJobEvent = TrialJobStatus | 'USER_TO_CANCEL' | 'ADD_CUSTOMIZED' | 'ADD_HYPERPARAMETER' | 'IMPORT_DATA';
 type MetricType = 'PERIODICAL' | 'FINAL' | 'CUSTOM' | 'REQUEST_PARAMETER';
 
 interface ExperimentProfileRecord {

src/nni_manager/common/manager.ts

@@ -99,6 +99,7 @@ abstract class Manager {
     public abstract stopExperiment(): Promise<void>;
     public abstract getExperimentProfile(): Promise<ExperimentProfile>;
     public abstract updateExperimentProfile(experimentProfile: ExperimentProfile, updateType: ProfileUpdateType): Promise<void>;
+    public abstract importData(data: string): Promise<void>;
 
     public abstract addCustomizedTrialJob(hyperParams: string): Promise<void>;
     public abstract cancelTrialJobByUser(trialJobId: string): Promise<void>;

src/nni_manager/core/commands.ts

@@ -22,6 +22,7 @@ const INITIALIZE = 'IN';
 const REQUEST_TRIAL_JOBS = 'GE';
 const REPORT_METRIC_DATA = 'ME';
 const UPDATE_SEARCH_SPACE = 'SS';
+const IMPORT_DATA = 'FD'
 const ADD_CUSTOMIZED_TRIAL_JOB = 'AD';
 const TRIAL_END = 'EN';
 const TERMINATE = 'TE';
@@ -38,6 +39,7 @@ const TUNER_COMMANDS: Set<string> = new Set([
     REQUEST_TRIAL_JOBS,
     REPORT_METRIC_DATA,
     UPDATE_SEARCH_SPACE,
+    IMPORT_DATA,
     ADD_CUSTOMIZED_TRIAL_JOB,
     TERMINATE,
     PING,
@@ -62,6 +64,7 @@ export {
     REQUEST_TRIAL_JOBS,
     REPORT_METRIC_DATA,
     UPDATE_SEARCH_SPACE,
+    IMPORT_DATA,
     ADD_CUSTOMIZED_TRIAL_JOB,
     TRIAL_END,
     TERMINATE,

src/nni_manager/core/nnimanager.ts

@@ -38,7 +38,7 @@ import {
 import { delay, getCheckpointDir, getExperimentRootDir, getLogDir, getMsgDispatcherCommand, mkDirP, getLogLevel } from '../common/utils';
 import {
     ADD_CUSTOMIZED_TRIAL_JOB, INITIALIZE, INITIALIZED, KILL_TRIAL_JOB, NEW_TRIAL_JOB, NO_MORE_TRIAL_JOBS, PING,
-    REPORT_METRIC_DATA, REQUEST_TRIAL_JOBS, SEND_TRIAL_JOB_PARAMETER, TERMINATE, TRIAL_END, UPDATE_SEARCH_SPACE
+    REPORT_METRIC_DATA, REQUEST_TRIAL_JOBS, SEND_TRIAL_JOB_PARAMETER, TERMINATE, TRIAL_END, UPDATE_SEARCH_SPACE, IMPORT_DATA
 } from './commands';
 import { createDispatcherInterface, IpcInterface } from './ipcInterface';
 
@@ -99,6 +99,17 @@ class NNIManager implements Manager {
         return this.storeExperimentProfile();
     }
 
+    public importData(data: string): Promise<void> {
+        if (this.dispatcher === undefined) {
+            return Promise.reject(
+                new Error('tuner has not been setup')
+            );
+        }
+        this.dispatcher.sendCommand(IMPORT_DATA, data);
+
+        return this.dataStore.storeTrialJobEvent('IMPORT_DATA', '', data);
+    }
+
     public addCustomizedTrialJob(hyperParams: string): Promise<void> {
         if (this.currSubmittedTrialNum >= this.experimentProfile.params.maxTrialNum) {
             return Promise.reject(

src/nni_manager/rest_server/restHandler.ts

@@ -63,6 +63,7 @@ class NNIRestHandler {
         this.checkStatus(router);
         this.getExperimentProfile(router);
         this.updateExperimentProfile(router);
+        this.importData(router);
         this.startExperiment(router);
         this.getTrialJobStatistics(router);
         this.setClusterMetaData(router);
@@ -144,6 +145,16 @@ class NNIRestHandler {
             });
         });
     }
+    
+    private importData(router: Router): void {
+        router.post('/experiment/import-data', (req: Request, res: Response) => {
+            this.nniManager.importData(JSON.stringify(req.body)).then(() => {
+                res.send();
+            }).catch((err: Error) => {
+                this.handle_error(err, res);
+            });
+        });
+    }
 
     private startExperiment(router: Router): void {
         router.post('/experiment', expressJoi(ValidationSchemas.STARTEXPERIMENT), (req: Request, res: Response) => {

src/nni_manager/rest_server/test/mockedNNIManager.ts

@@ -46,6 +46,9 @@ export class MockedNNIManager extends Manager {
     public updateExperimentProfile(experimentProfile: ExperimentProfile, updateType: ProfileUpdateType): Promise<void> {
         return Promise.resolve();
     }
+    public importData(data: string): Promise<void> {
+        return Promise.resolve();
+    }
     public getTrialJobStatistics(): Promise<TrialJobStatistics[]> {
         const deferred: Deferred<TrialJobStatistics[]> = new Deferred<TrialJobStatistics[]>();
         deferred.resolve([{

src/sdk/pynni/nni/msg_dispatcher.py

@@ -109,18 +109,24 @@ class MsgDispatcher(MsgDispatcherBase):
     def handle_update_search_space(self, data):
         self.tuner.update_search_space(data)
 
+    def handle_import_data(self, data):
+        """Import additional data for tuning
+        data: a list of dictionarys, each of which has at least two keys, 'parameter' and 'value'
+        """
+        self.tuner.import_data(data)
+
     def handle_add_customized_trial(self, data):
-         # data: parameters
+        # data: parameters
         id_ = _create_parameter_id()
         _customized_parameter_ids.add(id_)
         send(CommandType.NewTrialJob, _pack_parameter(id_, data, customized=True))
 
     def handle_report_metric_data(self, data):
         """
-        :param data: a dict received from nni_manager, which contains:
-                    - 'parameter_id': id of the trial
-                    - 'value': metric value reported by nni.report_final_result()
-                    - 'type': report type, support {'FINAL', 'PERIODICAL'}
+        data: a dict received from nni_manager, which contains:
+              - 'parameter_id': id of the trial
+              - 'value': metric value reported by nni.report_final_result()
+              - 'type': report type, support {'FINAL', 'PERIODICAL'}
         """
         if data['type'] == 'FINAL':
             self._handle_final_metric_data(data)
@@ -135,9 +141,9 @@ class MsgDispatcher(MsgDispatcherBase):
     def handle_trial_end(self, data):
         """
         data: it has three keys: trial_job_id, event, hyper_params
-            trial_job_id: the id generated by training service
-            event: the job's state
-            hyper_params: the hyperparameters generated and returned by tuner
+             - trial_job_id: the id generated by training service
+             - event: the job's state
+             - hyper_params: the hyperparameters generated and returned by tuner
         """
         trial_job_id = data['trial_job_id']
         _ended_trials.add(trial_job_id)

src/sdk/pynni/nni/msg_dispatcher_base.py

@@ -144,6 +144,7 @@ class MsgDispatcherBase(Recoverable):
             CommandType.Initialize: self.handle_initialize,
             CommandType.RequestTrialJobs: self.handle_request_trial_jobs,
             CommandType.UpdateSearchSpace: self.handle_update_search_space,
+            CommandType.ImportData: self.handle_import_data,
             CommandType.AddCustomizedTrialJob: self.handle_add_customized_trial,
 
             # Tunner/Assessor commands:
@@ -168,6 +169,9 @@ class MsgDispatcherBase(Recoverable):
     def handle_update_search_space(self, data):
        raise NotImplementedError('handle_update_search_space not implemented')
 
+    def handle_import_data(self, data):
+        raise NotImplementedError('handle_import_data not implemented')
+
     def handle_add_customized_trial(self, data):
         raise NotImplementedError('handle_add_customized_trial not implemented')
 

src/sdk/pynni/nni/multi_phase/multi_phase_dispatcher.py

@@ -112,6 +112,13 @@ class MultiPhaseMsgDispatcher(MsgDispatcherBase):
         self.tuner.update_search_space(data)
         return True
 
+    def handle_import_data(self, data):
+        """import additional data for tuning
+        data: a list of dictionarys, each of which has at least two keys, 'parameter' and 'value'
+        """
+        self.tuner.import_data(data)
+        return True
+
     def handle_add_customized_trial(self, data):
          # data: parameters
         id_ = _create_parameter_id()

src/sdk/pynni/nni/multi_phase/multi_phase_tuner.py

@@ -76,6 +76,12 @@ class MultiPhaseTuner(Recoverable):
         """
         raise NotImplementedError('Tuner: update_search_space not implemented')
 
+    def import_data(self, data):
+        """Import additional data for tuning
+        data: a list of dictionarys, each of which has at least two keys, 'parameter' and 'value'
+        """
+        pass
+
     def load_checkpoint(self):
         """Load the checkpoint of tuner.
         path: checkpoint directory for tuner

src/sdk/pynni/nni/protocol.py

@@ -30,6 +30,7 @@ class CommandType(Enum):
     RequestTrialJobs = b'GE'
     ReportMetricData = b'ME'
     UpdateSearchSpace = b'SS'
+    ImportData = b'FD'
     AddCustomizedTrialJob = b'AD'
     TrialEnd = b'EN'
     Terminate = b'TE'

src/sdk/pynni/nni/tuner.py

@@ -98,6 +98,12 @@ class Tuner(Recoverable):
         checkpoin_path = self.get_checkpoint_path()
         _logger.info('Save checkpoint ignored by tuner, checkpoint path: %s' % checkpoin_path)
 
+    def import_data(self, data):
+        """Import additional data for tuning
+        data: a list of dictionarys, each of which has at least two keys, 'parameter' and 'value'
+        """
+        pass
+
     def _on_exit(self):
         pass
 

tools/nni_cmd/constants.py

@@ -80,6 +80,20 @@ PACKAGE_REQUIREMENTS = {
     'BOHB': 'bohb_advisor'
 }
 
+TUNERS_SUPPORTING_IMPORT_DATA = {
+    'TPE',
+    'Anneal',
+    'GridSearch',
+    'MetisTuner',
+    'BOHB'
+}
+
+TUNERS_NO_NEED_TO_IMPORT_DATA = {
+    'Random',
+    'Batch_tuner',
+    'Hyperband'
+}
+
 COLOR_RED_FORMAT = '\033[1;31;31m%s\033[0m'
 
 COLOR_GREEN_FORMAT = '\033[1;32;32m%s\033[0m'

tools/nni_cmd/nnictl.py

@@ -22,7 +22,7 @@
 import argparse
 import pkg_resources
 from .launcher import create_experiment, resume_experiment
-from .updater import update_searchspace, update_concurrency, update_duration, update_trialnum
+from .updater import update_searchspace, update_concurrency, update_duration, update_trialnum, import_data
 from .nnictl_utils import *
 from .package_management import *
 from .constants import *
@@ -101,10 +101,6 @@ def parse_args():
     parser_trial_kill.add_argument('id', nargs='?', help='the id of experiment')
     parser_trial_kill.add_argument('--trial_id', '-T', required=True, dest='trial_id', help='the id of trial to be killed')
     parser_trial_kill.set_defaults(func=trial_kill)
-    parser_trial_export = parser_trial_subparsers.add_parser('export', help='export trial job results to csv')
-    parser_trial_export.add_argument('id', nargs='?', help='the id of experiment')
-    parser_trial_export.add_argument('--file', '-f', required=True, dest='csv_path', help='target csv file path')
-    parser_trial_export.set_defaults(func=export_trials_data)
 
     #parse experiment command
     parser_experiment = subparsers.add_parser('experiment', help='get experiment information')
@@ -119,6 +115,17 @@ def parse_args():
     parser_experiment_list = parser_experiment_subparsers.add_parser('list', help='list all of running experiment ids')
     parser_experiment_list.add_argument('all', nargs='?', help='list all of experiments')
     parser_experiment_list.set_defaults(func=experiment_list)
+    #import tuning data
+    parser_import_data = parser_experiment_subparsers.add_parser('import', help='import additional data')
+    parser_import_data.add_argument('id', nargs='?', help='the id of experiment')
+    parser_import_data.add_argument('--filename', '-f', required=True)
+    parser_import_data.set_defaults(func=import_data)
+    #export trial data
+    parser_trial_export = parser_experiment_subparsers.add_parser('export', help='export trial job results to csv or json')
+    parser_trial_export.add_argument('id', nargs='?', help='the id of experiment')
+    parser_trial_export.add_argument('--type', '-t', choices=['json', 'csv'], required=True, dest='type', help='target file type')
+    parser_trial_export.add_argument('--filename', '-f', required=True, dest='path', help='target file path')
+    parser_trial_export.set_defaults(func=export_trials_data)
 
     #TODO:finish webui function
     #parse board command

tools/nni_cmd/nnictl_utils.py

@@ -505,10 +505,19 @@ def export_trials_data(args):
             # dframe = pd.DataFrame.from_records([parse_trial_data(t_data) for t_data in content])
             # dframe.to_csv(args.csv_path, sep='\t')
             records = parse_trial_data(content)
-            with open(args.csv_path, 'w') as f_csv:
-                writer = csv.DictWriter(f_csv, set.union(*[set(r.keys()) for r in records]))
-                writer.writeheader()
-                writer.writerows(records)
+            if args.type == 'json':
+                json_records = []
+                for trial in records:
+                    value = trial.pop('reward', None)
+                    trial_id =  trial.pop('id', None)
+                    json_records.append({'parameter': trial, 'value': value, 'id': trial_id})
+            with open(args.path, 'w') as file:
+                if args.type == 'csv':
+                    writer = csv.DictWriter(file, set.union(*[set(r.keys()) for r in records]))
+                    writer.writeheader()
+                    writer.writerows(records)
+                else:
+                    json.dump(json_records, file)
         else:
             print_error('Export failed...')
     else:

tools/nni_cmd/updater.py

@@ -21,13 +21,13 @@
 
 import json
 import os
-from .rest_utils import rest_put, rest_get, check_rest_server_quick, check_response
-from .url_utils import experiment_url
+from .rest_utils import rest_put, rest_post, rest_get, check_rest_server_quick, check_response
+from .url_utils import experiment_url, import_data_url
 from .config_utils import Config
-from .common_utils import get_json_content
+from .common_utils import get_json_content, print_normal, print_error, print_warning
 from .nnictl_utils import check_experiment_id, get_experiment_port, get_config_filename
 from .launcher_utils import parse_time
-from .constants import REST_TIME_OUT
+from .constants import REST_TIME_OUT, TUNERS_SUPPORTING_IMPORT_DATA, TUNERS_NO_NEED_TO_IMPORT_DATA
 
 def validate_digit(value, start, end):
     '''validate if a digit is valid'''
@@ -39,6 +39,23 @@ def validate_file(path):
     if not os.path.exists(path):
         raise FileNotFoundError('%s is not a valid file path' % path)
 
+def validate_dispatcher(args):
+    '''validate if the dispatcher of the experiment supports importing data'''
+    nni_config = Config(get_config_filename(args)).get_config('experimentConfig')
+    if nni_config.get('tuner') and nni_config['tuner'].get('builtinTunerName'):
+        dispatcher_name = nni_config['tuner']['builtinTunerName']
+    elif nni_config.get('advisor') and nni_config['advisor'].get('builtinAdvisorName'):
+        dispatcher_name = nni_config['advisor']['builtinAdvisorName']
+    else: # otherwise it should be a customized one
+        return
+    if dispatcher_name not in TUNERS_SUPPORTING_IMPORT_DATA:
+        if dispatcher_name in TUNERS_NO_NEED_TO_IMPORT_DATA:
+            print_warning("There is no need to import data for %s" % dispatcher_name)
+            exit(0)
+        else:
+            print_error("%s does not support importing addtional data" % dispatcher_name)
+            exit(1)
+
 def load_search_space(path):
     '''load search space content'''
     content = json.dumps(get_json_content(path))
@@ -71,7 +88,7 @@ def update_experiment_profile(args, key, value):
             if response and check_response(response):
                 return response
     else:
-        print('ERROR: restful server is not running...')
+        print_error('Restful server is not running...')
     return None
 
 def update_searchspace(args):
@@ -80,18 +97,19 @@ def update_searchspace(args):
     args.port = get_experiment_port(args)
     if args.port is not None:
         if update_experiment_profile(args, 'searchSpace', content):
-            print('INFO: update %s success!' % 'searchSpace')
+            print_normal('Update %s success!' % 'searchSpace')
         else:
-            print('ERROR: update %s failed!' % 'searchSpace')
+            print_error('Update %s failed!' % 'searchSpace')
+
 
 def update_concurrency(args):
     validate_digit(args.value, 1, 1000)
     args.port = get_experiment_port(args)
     if args.port is not None:
         if update_experiment_profile(args, 'trialConcurrency', int(args.value)):
-            print('INFO: update %s success!' % 'concurrency')
+            print_normal('Update %s success!' % 'concurrency')
         else:
-            print('ERROR: update %s failed!' % 'concurrency')
+            print_error('Update %s failed!' % 'concurrency')
 
 def update_duration(args):
     #parse time, change time unit to seconds 
@@ -99,13 +117,38 @@ def update_duration(args):
     args.port = get_experiment_port(args)
     if args.port is not None:
         if update_experiment_profile(args, 'maxExecDuration', int(args.value)):
-            print('INFO: update %s success!' % 'duration')
+            print_normal('Update %s success!' % 'duration')
         else:
-            print('ERROR: update %s failed!' % 'duration')
+            print_error('Update %s failed!' % 'duration')
 
 def update_trialnum(args):
     validate_digit(args.value, 1, 999999999)
     if update_experiment_profile(args, 'maxTrialNum', int(args.value)):
-        print('INFO: update %s success!' % 'trialnum')
+        print_normal('Update %s success!' % 'trialnum')
     else:
-        print('ERROR: update %s failed!' % 'trialnum')
+        print_error('Update %s failed!' % 'trialnum')
\ No newline at end of file
+
+def import_data(args):
+    '''import additional data to the experiment'''
+    validate_file(args.filename)
+    validate_dispatcher(args)
+    content = load_search_space(args.filename)
+    args.port = get_experiment_port(args)
+    if args.port is not None:
+        if import_data_to_restful_server(args, content):
+            print_normal('Import data success!')
+        else:
+            print_error('Import data failed!')
+
+def import_data_to_restful_server(args, content):
+    '''call restful server to import data to the experiment'''
+    nni_config = Config(get_config_filename(args))
+    rest_port = nni_config.get_config('restServerPort')
+    running, _ = check_rest_server_quick(rest_port)
+    if running:
+        response = rest_post(import_data_url(rest_port), content, REST_TIME_OUT)
+        if response and check_response(response):
+            return response
+    else:
+        print_error('Restful server is not running...')
+    return None

tools/nni_cmd/url_utils.py

@@ -29,6 +29,8 @@ EXPERIMENT_API = '/experiment'
 
 CLUSTER_METADATA_API = '/experiment/cluster-metadata'
 
+IMPORT_DATA_API = '/experiment/import-data'
+
 CHECK_STATUS_API = '/check-status'
 
 TRIAL_JOBS_API = '/trial-jobs'
@@ -46,6 +48,11 @@ def cluster_metadata_url(port):
     return '{0}:{1}{2}{3}'.format(BASE_URL, port, API_ROOT_URL, CLUSTER_METADATA_API)
 
 
+def import_data_url(port):
+    '''get import_data_url'''
+    return '{0}:{1}{2}{3}'.format(BASE_URL, port, API_ROOT_URL, IMPORT_DATA_API)
+
+
 def experiment_url(port):
     '''get experiment_url'''
     return '{0}:{1}{2}{3}'.format(BASE_URL, port, API_ROOT_URL, EXPERIMENT_API)