Passer au contenu principal

Urblauna

Kesako?

Urblauna (Romanche), or Lagopède Alpin in French, is a bird known for its changing plumage which functions as a very effective camouflage. More information is available at https://www.vogelwarte.ch/fr/oiseaux/les-oiseaux-de-suisse/lagopede-alpin

It's also the name of our new sensitive data compute cluster which will replacereplaced the Jura cluster.

Information on how to connect to Urblauna can be found here.

Information on the Jura to Urblauna migration can be found here

The differences between Jura and Urblauna are described here

Hardware

Compute

The cluster is composed ofof:

  • 18 compute nodes ofwith which two have GPUs. All have the same 24 core processor.

    Number of nodesMemoryCPUGPU
    161024 GB2 x AMD Epyc3 7443-
    2 and 1024 GB2of xMemory AMD
  • 4 Epyc3 7443
    		• 2 x NVIDIANvidia A100
    The GPUs(40 areGB) partitioned to create 4 GPUs on each machine with 20GB of memory per GPU

Storage

The storage is based on IBM Spectrum Scale / Lenovo DSS and provides 1PB of space in the /data filesystem.

Whilst reliable this space is not backed up and all important data should also be stored on /archive

/data

The /data filesystem is structured in the same way as on Curnagl

/data/FAC/FACULTY/INSTITUTE/PI/PROJECT

This space is on reliable storage but there are no backups or snapshots.

If you wish to increase the limit then just ask us. With 1PB available all resonable requests will be accepted.

/scratch

It is considered as temporary space and there is no fee associated.

There are no quotas but in case of the utilisation being greater that 90% then files older than 2 weeks will be removed automatically.

/users

The /users home directory filesystem.

/work

The Curnagl /work filesystem is visible in read-only modefrom oninside UrblaunaUrblauna. andThis canis bevery useduseful for being able to install software on an internetInternet connected systemsystem.

before

/reference

using

This itis intended to host widely used datasets

The /db set of biological databases can be found at /reference/bio_db/

/archive

This is an HSM (Hierarchical Storage Management system) meaning that any files written are copied on Urblauna.tape in two copies, after some time the file content is erased from disk and a pointer to the file on tape remains. If you open a file which content is not on disk any more the tape cardridge has to be loaded in a drive, spooled to the right place and then transferred to disk.

**Filesystem

It mountis point**only

**Description**for
/userscold data. If you have to retrieve more than 1000 files please send us a ticket at helpdesk@unil.ch with subject "DCSR Urblauna homearchive retrieve" and the directory
/scratchUrblaunapath.

scratch

It spacehas (automaticthe cleanup)

same roganization as /dataUrblauna:

data

/archive/FAC/FACULTY/INSTITUTE/PI/PROJECT

space (no backup)
/archiveSecure data space with backup (login node access only)
/workCurnagl data space (read only)
/jura_homeJura home directories (read only, login node only)
/jura_dataJura data space (read only, login node only)

Software

For information on the DCSR software stack see the following link:

https://wiki.unil.ch/ci/books/high-performance-computing-hpc/page/dcsr-software-stack

Slurm partitions

On Urblauna there are two partitions - "urblauna" and "interactive"

$ sinfo

PARTITION   AVAIL  TIMELIMIT  NODES  STATE NODELIST
urblauna*      up 3-00:00:00     17   idle sna[002-016],snagpu[001-002]
interactive    up    8:00:00      4   idle sna[015-016],snagpu[001-002]

There is no separate GPU partition so to use a GPU simply request

#SBATCH --gres=gpu:1

To launch an interactive session you can use Sinteractive as on Curnagl

Retour en haut