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On this page

Creating a Training Job Version

Updated on 2024-03-21 GMT+08:00

A training job must exist before you create a version for it. You can create a training job version based on Creating a Training Job or job_id and version_id of the object returned by Querying the List of Training Job Versions.

Sample Code

In ModelArts notebook, you do not need to enter authentication parameters for session authentication. For details about session authentication of other development environments, see Session Authentication.

  • Example 1: Create a training job version using the data stored on OBS.
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    from modelarts.session import Session
    from modelarts.estimator import Estimator
    session = Session()
    estimator = Estimator(
                          modelarts_session=session,
                          framework_type='PyTorch',                                     # AI engine name
                          framework_version='PyTorch-1.0.0-python3.6',                  # AI engine version
                          code_dir='/bucket/src/',                                      # Training script directory
                          boot_file='/bucket/src/pytorch_sentiment.py',                 # Training boot script directory
                          log_url='/bucket/log/',                                       # Training log directory
                          hyperparameters=[
                                           {"label":"classes",
                                            "value": "10"},    
                                           {"label":"lr",
                                            "value": "0.001"}
                                           ],
                          output_path='/bucket/output/',                                # Training output directory
                          train_instance_type='modelarts.vm.gpu.p100',                  # Training environment flavor
                          train_instance_count=1)
    job_version_instance = estimator.create_job_version(job_id='182626', pre_version_id=278813, inputs='/bucket/data/train/', wait=False, job_desc='create a job version')
    
  • Example 2: Create a training job version using a dataset.
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    from modelarts.session import Session
    from modelarts.estimator import Estimator
    session = Session()
    estimator = Estimator(
                          modelarts_session=session,
                          framework_type='PyTorch',                                     # AI engine name
                          framework_version='PyTorch-1.0.0-python3.6',                  # AI engine version
                          code_dir='/bucket/src/',                                      # Training script directory
                          boot_file='/bucket/src/pytorch_sentiment.py',                 # Training boot script directory
                          log_url='/bucket/log/',                                       # Training log directory
                          hyperparameters=[
                                           {"label":"classes",
                                            "value": "10"},    
                                           {"label":"lr",
                                            "value": "0.001"}
                                           ],
                          output_path='/bucket/output/',                                # Training output directory
                          train_instance_type='modelarts.vm.gpu.p100',                  # Training environment flavor
                          train_instance_count=1,                                       # Number of training nodes
                          job_description='pytorch-sentiment with ModelArts SDK')       # Training job description
    job_version_instance = estimator.create_job_version(job_id='182626', pre_version_id=278813, inputs='/bucket/data/train/', wait=False, job_desc='create a job version')
    
  • Example 3: Create a training job version using a custom image.
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    from modelarts.session import Session
    from modelarts.estimator import Estimator
    session = Session()
    estimator = Estimator(
                          modelarts_session=session,
                          log_url='/bucket/log/',                                       # Training log directory
                          hyperparameters=[
                                           {"label":"classes",
                                            "value": "10"},    
                                           {"label":"lr",
                                            "value": "0.001"}
                                           ],
                          output_path='/bucket/output/',                                # Training output directory
                          train_instance_type='modelarts.vm.gpu.p100',                  # Training environment flavor
                          train_instance_count=1,                                       # Number of training nodes
                          user_command='bash -x /home/work/run_train.sh python /home/work/user-job-dir/app/mnist/mnist_softmax.py --data_url /home/work/user-job-dir/app/mnist_data',                                                            # Boot command of the custom image
                          user_image_url='100.125.5.235:20202/jobmng/cpu-base:1.0',     # Address for downloading the custom image
                          job_description='pytorch-sentiment with ModelArts SDK')       # Training job description
    job_version_instance = estimator.create_job_version(job_id='182626', pre_version_id=278813, inputs='/bucket/data/train/', wait=False, job_desc='create a job version')
    
  • Example 4: Create a training job version using a built-in algorithm.
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    from modelarts.session import Session
    from modelarts.estimator import Estimator
    session = Session()
    estimator = Estimator(
                          modelarts_session=session, 
                          model_name='Faster_RCNN_ResNet_v1_50',                        # Name of the built-in algorithm
                          log_url='/bucket/log/',                                       # Training log directory
                          hyperparameters=[
                                           {"label":"classes",
                                            "value": "10"},    
                                           {"label":"lr",
                                            "value": "0.001"}
                                          ],
                          output_path='/bucket/output/',                                # Training output directory
                          train_instance_type='modelarts.vm.gpu.p100',                  # Training environment flavor
                          train_instance_count=1,                                       # Number of training nodes
                          job_description='pytorch-sentiment with ModelArts SDK')       # Training job description
    job_version_instance = estimator.create_job_version(job_id='182626', pre_version_id=278813, inputs='/bucket/data/train/', wait=False, job_desc='create a job version')
    

Parameters

Table 1 Estimator request parameters

Parameter

Mandatory

Type

Description

modelarts_session

Yes

Object

Session object. For details about the initialization method, see Session Authentication.

train_instance_count

Yes

Long

Number of workers in a training job

code_dir

No

String

Code directory of a training job, for example, /bucket/src/. Leave this parameter blank when model_name is set.

boot_file

No

String

Boot file of a training job, which must be stored in the code directory. For example, /bucket/src/boot.py. Leave this parameter blank when model_name is set.

model_name

No

Long

Name of the built-in algorithm used by a training job. If you have configured model_name, you do not need to configure app_url, boot_file_url, framework_type, and framework_version. You can obtain this value by calling the API described in Querying a Built-in Algorithm.

output_path

Yes

String

Output path of a training job

hyperparameters

No

JSON Array

Running parameters of a training job. It is a collection of label-value pairs of the string type. This parameter is a container environment variable when a job uses a custom image.

log_url

No

String

OBS URL of the logs of a training job. By default, this parameter is left blank. Example value: /usr/log/

train_instance_type

Yes

Long

Resource flavor selected for a training job. If you choose to train on the training platform, obtain the value by calling the API described in Querying the List of Resource Flavors.

framework_type

No

String

Engine selected for a training job. Obtain the value by calling the API described in Querying the List of Engine Types. Leave this parameter blank when model_name is set.

framework_version

No

String

Engine version selected for a training job. Obtain the value by calling the API described in Querying the List of Engine Types. Leave this parameter blank when model_name is set.

user_image_url

No

String

SWR URL of the custom image used by a training job. Example value: 100.125.5.235:20202/jobmng/custom-cpu-base:1.0

user_command

No

String

Boot command used to start the container of the custom image of a training job. The format is bash /home/work/run_train.sh python /home/work/user-job-dir/app/train.py {python_file_parameter}.

Table 2 create_job_version request parameters

Parameter

Mandatory

Type

Description

job_id

Yes

String

ID of a training job. You can query job_id using the training job object generated in Creating a Training Job, for example, job_instance.job_id, or from the response obtained in Querying the List of Training Jobs.

pre_version_id

Yes

Long

ID of the previous version of a training job. You can query pre_version_id using the training job object generated in Creating a Training Job, for example, job_instance.version_id, or from the response obtained in Querying the List of Training Jobs.

inputs

Yes

String

Data storage location of a training job. inputs cannot be used with dataset_id and dataset_version_id, or with data_source at the same time. However, one of the parameters must exist. Only this parameter is supported in local training.

dataset_id

No

String

Dataset ID of a training job. This parameter must be used with dataset_version_id, but cannot be used with inputs.

dataset_version_id

No

String

Dataset version ID of a training job. This parameter must be used with dataset_id, but cannot be used with inputs.

wait

No

Boolean

Whether to wait for the completion of creating a training job version. Default value: False

job_desc

No

String

Description of a training job

Table 3 create_job_version response parameters

Parameter

Type

Description

TrainingJob

Object

Training object. This object contains attributes such as job_id and version_id, and operations on a training job, such as querying, modifying, or deleting the training job. For example, you can use job_version_instance.job_id to obtain the ID of a training job.

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