CLI Reference

Commands

lazy fit

Run photometric redshift fitting.

lazy fit -p <param_file> [options]

Flag	Description
-p, --param	Path to the TOML parameter file (required)
-t, --threads	Number of threads: an integer or auto for all available cores. Default: 1
-y, --yes	Non-interactive mode. Automatically resumes interrupted jobs without prompting
-h, --help	Show help for the fit command

Examples:

lazy fit -p params.toml              # Single-threaded
lazy fit -p params.toml -t 8         # 8 threads
lazy fit -p params.toml -t auto      # All available threads
lazy fit -p params.toml -y           # Auto-resume without prompts

lazy list-templates

Display all available template sets and their template counts.

lazy list-templates

lazy list-filters

Display all available filter transmission curves with descriptions.

lazy list-filters

lazy params

Print an annotated example parameter file to stdout. Redirect to create a starting configuration:

lazy params > my_params.toml

lazy cache-clear

Remove all cached template grids. Useful if you've modified template files or want to reclaim disk space.

lazy cache-clear

Global Options

Flag	Description
-v, --version	Show version information
-h, --help	Show help message

Threading

Thread count is controlled by the -t flag on the lazy fit command. This is passed to Julia's -t option internally.

• -t 1 (default): Single-threaded execution

• -t N: Use N threads

• -t auto: Use all available CPU threads

Threading applies to both template grid construction and the per-object fitting loop. See Advanced Usage for performance scaling benchmarks.