Migrate an experiment to a different H2O Hydrogen Torch version
Overview
You can migrate an experiment to a different H2O Hydrogen Torch version. In particular, H2O Hydrogen Torch lets you migrate an experiment with an experiment's YAML file. The file contains the experiment's settings that you can use to rerun the experiment in a different version of H2O Hydrogen Torch.
- You can also utilize an experiment's YAML file to explore experiment errors. To learn more, see Download an experiment's logs/config file
- An experiment's YAML file does not migrate the dataset(s) utilized for the experiment. To migrate an experiment to a different version of H2O Hydrogen Torch, you need the experiment's YAML file and the dataset(s) utilized
- v1.1.0+ supports the migration of experiments (that is, you can migrate experiments within any version after v1.0.1)

Instructions
To migrate an experiment to a different version of H2O Hydrogen Torch, consider the following instructions:
- Open the experiments list
In the H2O Hydrogen Torch navigation menu, click View experiments.
- Select the experiment to migrate
In the Experiments table, select the name of the experiment you want to migrate to a different version of H2O Hydrogen Torch.
- Download the logs and config
Click Download logs/config.
- In particualr, H2O Hydrogen Torch downloads a YAML file that contains the setting values of the experiment. To learn more, see Download an experiment's logs/config file
- Start an experiment in the target version
In the navigation menu of a different version of H2O Hydrogen Torch (where you want to migrate the experiment), click Create experiment.
- Turn on Import config from YAML
In General settings, click the Import config from YAML toggle to the on position.

- Upload the YAML file
Upload the downloaded YAML file (retrieved in step 3).
Click Upload!.
- Review the dataset settings
Review/specify the settings in the Dataset settings section (the dataset settings are set automatically).
cautionAn experiment's YAML file does not migrate the dataset(s) utilized for the experiment. You need to import the dataset(s) you utilized to build the experiment (model) in the other version of H2O Hydrogen Torch.
- Run the experiment
Click Run experiment
noteThe rebuilt experiment (model) is expected to differ due to code and package changes. However, they should be similar.
- Submit and view feedback for this page
- Send feedback about H2O Hydrogen Torch to cloud-feedback@h2o.ai