defaults

This example shows how to configure the defaults section in tace.yaml to read multiple YAML files from different paths and merge them.

defaults:
    - _self_
    - config/model@model: tacev1
    - config/logger@_here_: wandb

Explanation:

• _self_: Start from the current YAML file itself.

• config/model@model: tace: Load model configuration from ./config/model/tace.yaml and add all parameters under the model field.

• config/logger@_here_: wandb: Load logger configuration from ./config/logger/wandb.yaml and merge all parameters directly into the current file.

Syntax of Hydra and OmegaConf

For more advanced basic syntax of Hydra and OmegaConf, such as variable interpolation and simple resolvers, we will not cover them here. If you are interested, you can refer to the official documentation:

• Hydra: https://hydra.cc/docs/advanced/override_grammar/basic/

• OmegaConf: https://omegaconf.readthedocs.io/en/2.3_branch/usage.html