To access a system a secure method, such as
ssh, has to be used. This is normally run from a text console:
Normally programs are run in batch mode. This means that a program is not started to directly, but instead is sent to a so-called resource manager. This ensures that the program is only then started when enough resources are available.
A nightly backup of the data in
/home is made. Data stored in the /scratch file systems is not backed up and cannot be recovered if deleted by accident or lost due to a file system failure.
Please note that even in
/home, files contained within a directory called
temp will excluded from the backup.
An incremental backup is performed every night and a full backup made every 6 weeks. If you need to recover lost data, please contact us at email@example.com.
When your FU account expires or you leave the group you specified in your account application, then your access to the HPC systems will be deactivated. All data on the HPC systems will be deleted after 4 weeks.
Please ensure that you move data that you still require to another system. Data which is no longer needed should be deleted.
Please send email only to
firstname.lastname@example.org. Your message will reach all HPC support staff. If you write to an individual member of the team and that person is unavailable, you will not receive a prompt reply.
If you have observed a specific error with a job sent to the queuing system, please fill in this error report.
If you would like to discuss any issue related to our service with us, please call one of the numbers given on the contacts page.
You may also visit us personally in order to receive advice about using our systems. However, you must make an appointment with us in advance. In general, office hours are as follows:
|Mon||09:00 - 17:00|
|Tue||09:00 - 11:00 and 12:30 - 17:00|
|Wed||09:00 - 17:00|
|Thu||09:00 - 17:00|
|Fri||09:00 - 17:00|
Available disk space can be queried via the command
$ df -h Filesystem Size Used Avail Use% Mounted on rootfs 19G 5.9G 12G 33% / /dev/sda1 19G 5.9G 12G 33% / udev 24G 216K 24G 1% /dev tmpfs 24G 606M 24G 3% /dev/shm /dev/sda6 192G 188M 182G 1% /local /dev/sda3 1.9G 95M 1.7G 6% /tmp /dev/sda2 1.9G 879M 947M 49% /var none 24G 606M 24G 3% /dev/shm master:/cm/shared 247G 125G 109G 54% /cm/shared master:/home 17T 11T 5.8T 65% /home fhgfs_nodev 164T 106T 58T 65% /scratch
Here the entries
/scratch are particularly important.
The following text may be used:
The authors would like to thank the HPC Service of ZEDAT, Freie Universität Berlin, for computing time.
Please also use the following DOI as a reference for the system Curta:
If the HPC Service has been helpful for you in producing a publication or thesis, please send us the relevant DOI and, if possible, an appropriate image to email@example.com, so that we can include this in our list https://www.fu-berlin.de/sites/high-performance-computing/Forschungsergebnisse.