The ECaccess software includes the service of launching user jobs according to the dissemination schedule (Dissemination schedule) of ECMWF's real-time data and products. This service is also known as TC-1 service, or TC-1 jobs. For more information on TC-1, see Simple time-critical jobs.

Please find hereafter some important notes on changes with the TC-1 service.

ECaccess Web Toolkit at ECMWF

To access the ECaccess Web Toolkit on Atos, you will have to load the eacccess module, e.g.:

$> module load ecaccess
$> ecaccess-event-list

SSH keys setting

In order to ensure a proper functioning of the ECaccess jobs submissions, including the TC-1 service, it is essential to configure properly the SSH Keys under the user HOME on the Atos systems. See HPC2020: How to connect for more details.

You only need to do this once, and you can do it running the following command:

$> ssh-key-setup

Without the SSH keys correctly installed, an ECaccess (TC1) job submission will issue an error message like:

lost connection
basename: missing operand
Try 'basename --help' for more information.

Mail notifications currently not working.

SLURM email notifications (directive "#SBATCH --mail-type=") in ECaccess batch jobs on Atos, including TC-1 jobs, are not working at this moment.

Common errors

Make sure you submit your TC-1 jobs to the correct ECaccess events; see command 'ecaccess-event-list'.  If your jobs is submitted to early with reference to the dissemination schedule, it will fail.

Do give your TC-1 jobs sufficient time with the SLURM directive '#SBATCH --time=<HH:MM:SS>'.