Extract Compressed Output Files

The files uploaded to a space from the job cluster are uncompressed by default. To conserve storage space and reduce download times, you can select the option to compress output files when you create a new job. If you select this option, the following tar files will be uploaded to the output directory:

  • image_files-<job ID>.tar.zst – All image files

  • log_files-<job ID>.tar.zst – All log files

  • output_files-<job ID>.tar.zst – All log files and output files, including 3D post*.h5 files

  • restart_files-<job ID>.tar.zst – All restart files

  • text_files-<job ID>.tar.zst – Text file output only (includes input, echo, log, and *.out files)

These files are compressed using Zstandard compression. To extract the files on Linux, you must have the zstd package installed. This is installed on most Linux systems by default. You can extract the files with the following command:

tar -I zstd -xf <file name>.tar.zst

Starting with Windows 11 version 23H2, Zstandard is natively supported on Windows, meaning you can extract the files the same way you would for any other type of archive. To extract the files on earlier versions of Windows, we recommend installing a program such as 7-zip-zstd.