Use an Amazon S3 bucket for input and output

Set up a S3 bucket to upload training datasets and save training output data for your hyperparameter tuning job.

To use a default S3 bucket

Use the following code to specify the default S3 bucket allocated for your SageMaker session. prefix is the path within the bucket where SageMaker stores the data for the current training job.

sess = sagemaker.Session()
bucket = sess.default_bucket() # Set a default S3 bucket
prefix = 'DEMO-automatic-model-tuning-xgboost-dm'

To use a specific S3 bucket (Optional)

If you want to use a specific S3 bucket, use the following code and replace the strings to the exact name of the S3 bucket. The name of the bucket must contain sagemaker, and be globally unique. The bucket must be in the same AWS Region as the notebook instance that you use for this example.

bucket = "sagemaker-your-preferred-s3-bucket"

sess = sagemaker.Session(
    default_bucket = bucket
)

Note

The name of the bucket doesn't need to contain sagemaker if the IAM role that you use to run the hyperparameter tuning job has a policy that gives the S3FullAccess permission.

Next Step

Download, Prepare, and Upload Training Data