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.
End of computing services in Reading
The HPC (cca//ccb) service in Reading terminated on .
The Computing services on ecgate will continue until , though with limited support.
Please migrate your TC-1 jobs to ATOS as soon as possible.
Please find hereafter some important notes on changes with the TC-1 service on Atos in Bologna.
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.
Metview/metgram service
As the meteogram database has been moved to Bologna, the Metview meteogram service in Reading will no longer work by default. Rather than fixing the TC-1 jobs in Reading, we strongly recommend users to run these jobs to the Atos systems in Bologna. See example metgram batch job under https://confluence.ecmwf.int/display/UDOC/HPC2020%3A+realtime_metgram.sh. Note that you will need to load the new version of the ecmwf-toolbox.
Delete your TC-1 jobs in Reading
When your TC-1 jobs is up and running on the Atos systems in Bologna, please do stop your TC-1 jobs in Reading, by canceling the job in STANDBY mode with 'ecaccess-job-delete', e.g.:
$> ecaccess-job-list 22379170 ecgate STDBY 0/1 Oct 26 11:49 [bc06h012 (222)] tc1_06bc.cmd 22345657 ecgate DONE 1/1 Oct 25 11:50 [bc06h012 (222)] tc1_06bc.cmd $> ecaccess-job-delete 22379170
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.
TC-1 jobs by TC-2 users
TC-2 users (z<MS> UIDs) cannot currently submit TC-1 jobs on the Atos systems. While we resolve this issue, we invite those users to use their personal UID to launch a TC-1 job, e.g. to trigger the TC-2 ecflow suite.
Common errors
The SLURM directive '#SBATCH --workdir=<directory_name>', commonly used on ecgate in Reading is deprecated. On the ATos systems, you should use '#SBATCH --chdir=<directory_name>' instead.
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>'.