---
title: Subprocess
---
The [subprocess_example.py](https://github.com/allegroai/clearml/blob/master/examples/distributed/subprocess_example.py)
script demonstrates multiple subprocesses interacting and reporting to a main Task. The following happens in the script:
* This script initializes a main Task and spawns subprocesses, each for an instances of that Task.
* Each Task in a subprocess references the main Task by calling [Task.current_task](../../references/sdk/task.md#taskcurrent_task),
which always returns the main Task.
* The Task in each subprocess reports the following to the main Task:
* Hyperparameters - Additional, different hyperparameters.
* Console - Text logged to the console as the Task in each subprocess executes.
* When the script runs, it creates an experiment named `Popen example` which is associated with the `examples` project.
## Hyperparameters
ClearML automatically logs the command line options defined with `argparse`. A parameter dictionary is logged by
connecting it to the Task using a call to the [Task.connect](../../references/sdk/task.md#connect) method.
```python
additional_parameters = {
'stuff_' + str(randint(0, 100)): 'some stuff ' + str(randint(0, 100))
}
Task.current_task().connect(additional_parameters)
```
Command line options appear in **CONFIGURATIONS** **>** **HYPER PARAMETERS** **>** **Args**.
Parameter dictionaries appear in **General**.
## Console
Output to the console, including the text messages from the Task in each subprocess, appear in **RESULTS** **>** **CONSOLE**.
