With Step Functions, you can orchestrate large-scale parallel processing. These parallel workloads let you concurrently process large-scale data sources stored in Amazon S3.
A Map state set to Distributed is known as a Distributed Map state. In Distributed mode, the Map state allows high-concurrency processing. In Distributed mode, the Map state processes the items in the dataset in iterations called child workflow executions.
https://docs.aws.amazon.com/step-functions/latest/dg/use-dist-map-orchestrate-large-scale-parallel-workloads.html
With Step Functions, you can orchestrate large-scale parallel processing. These parallel workloads let you concurrently process large-scale data sources stored in Amazon S3.
A Map state set to Distributed is known as a Distributed Map state. In Distributed mode, the Map state allows high-concurrency processing. In Distributed mode, the Map state processes the items in the dataset in iterations called child workflow executions.
https://docs.aws.amazon.com/step-functions/latest/dg/use-dist-map-orchestrate-large-scale-parallel-workloads.html