Table of Contents
outline true
indent 10px

Storage

Users storage

	Personal directories			Project directories
Mountpoint	/albedo/home/$USER	/albedo/work/user/$USER	/albedo/scratch/user/$USER	/albedo/work/projects/$PROJECT	/albedo/scratch/projects/$PROJECT	/albedo/burst
Quota (soft)	100 GB	3TB	50 TB	variable 30 €/TB/yr	variable 10 €/TB/yr	--
Quota (hard)	100 GB	15 TB for 90 days	--	2x soft quota for 90 days	--
Delete	90 days after user account expired		all data after 90 days	90 days after project expired	all data after 90 days	after 10 days
Security	Snapshots for 6 months		--	Snapshots for 6 months	--	--
Owner	$USER:hpc_user			$OWNER:$PROJECT		root:root
Permission	2700 → drwx--S---			2770 → rwxrws---		1777 → rwxwrxrwt
Focus	many small files	large files, large bandwith				low latency, huge bandwitch

Is installed and maintained in /albedo/home/soft/:

...

If you need space here, please contact hpc@awi.de

To submit a job from the login nodes to the compute nodes you need slurm (job scheduler, batch queueing system and workload manager)

A submitted job has/needs the following information/ressources:

What	Use	Default	Comment
A Name	--job-name=
Number of nodes	-N or --nodes=	1
Number of (MPI-)tasks (per node)	-n or --ntasks= --ntasks-per-node=	1	Needed for MPI
Number of cores/threads per task	-c or --cpus-per-task=	1	Needed for OpenMP If -n N and -c C is given, you get NxC cores.
Memory/RAM per CPU	--mem=	ntasks x nthreads x 1.6 GB	Only needed for smp-jobs, mpp-jobs get whole nodes (cores and memory)
A maximum walltime	--time=	01:00
A partition	-p	smp
A qos (quality of service)	--qos=	normal

Partition	Nodes	Purpose
smp		For jobs with up to 36 cores. Jobs may share nodes (until all cores are occupied).
mpp		For parallel jobs, typically >=36 cores. Jobs get nodes exclusively
gpu

QOS	max. time	max nodes job/user/total	Fairshare usage factor	Comment
short	00:30:00	128 / 312 / 312	1	High priority, jobs in this qos run first
normal	12:00:00	128 / 312 / 312	1	Default
large	96:00:00	8 / 16 / 64	2
xlarge	400:00:00	1 / 2 / 8	10	Only on request. Use at own risk, consider short jobs with restarts if possible
knurd	-	-	1	For admins only