Page tree

Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

File system + mount point

Environment Variable for Access

PurposeType and SizeBackup and snapshotsIntended lifetimeCleanup strategy QuotaAvailable for

/home

$HOME

Store source files, input data, small files

Globally accessible from login and compute nodes

GPFS, 100TB

backup to tape disks and snapshots

Account lifetimeNo cleanup

100GB

per user

All users

/work

$WORK 

Collaboration space for a group
Common software, result files and data sets

Globally accessible from login and compute nodes

GPFS, 100TB

Backup upon request, at cost price.

Snapshots

Group lifetimeNo cleanup

50GB*

per group

All EPFL units (upon request).
Not available for bachelor/master students.

/scratch

$SCRATCH 

Temporary huge result files

Accessible from the frontend and compute nodes within one cluster.

Fidis:
GPFS, 375TB

Helvetios:
GPFS, 186TB

Izar:
GPFS, 253TB

No backup, no snapshots

2 weeks


Automatic deletion of files and empty directories older than two weeks may happen without noticeQuotas may be in place to prevent runaway tasks filling the filesystem. A typical limit would be 1/3 or 1/2 of the total space.All users

/tmp/${SLURM_JOB_ID}

$TMPDIR

Temporary, local file space for jobs on compute nodes.

Not available on login nodes.

local (node), between 64 and 512 GB

No backup, no snapshots

Job execution


Content is deleted after job endnoAll users

...