ALEPH off-line computers at CERN
This page lists the operating systems supported by Aleph offline software and
the corresponding computer systems (and network) used at CERN
(also shown in this
picture).
Unix operating system
The CERN Unix users' guide is a good general introduction to Unix, adapted to the Unix
services at CERN. The Aleph Unix systems at CERN
are integrated in CN division's CORE services (described in the
CORE users' guide and
SHIFT Reference Manual)
and share a common
Aleph Unix environment
File system
- Aleph home directories were recently migrated to the AFS file system.
- Batch system
- Aleph uses the LSF batch system.
- Digital Unix
(Currently DUX V4.0B, Digital Fortran compiler V4.1(u2))
- Private Aleph machines at CERN
- Aloha is a
cluster of ALPHA AXP machines. Interactive work has priority. Batch runs when the machines are otherwise idle, and should be limited to low I/O jobs such as MonteCarlo production.
- Shift50 is a
ten processor AlphaServer 8400 machine, for batch work. This machine is best suited to jobs with high I/O, such as data analysis. MonteCarlo should be run on aloha or CSF. Batch jobs must be
submitted from aloha or from dxplus, using LSF.
- Public machines at CERN with Aleph environment installed
- Hewlett Packard HPUX
(Currently HPUX 10.20, Fortran compiler fort77 B 10.20)
- Public machines at CERN with Aleph environment installed
- CSF is a cluster of workstations for MonteCarlo BATCH work. Access is restricted to people responsible for MonteCarlo productions.
- HPPLUS Interactive service.
- Linux (Currently RedHat 6.0, Fortran compiler g77 v0.5.24). Kingal generators are not yet ported to Linux.
- Public machines at CERN with Aleph environment installed
- LXPLUS Interactive service.
- LXBATCH Batch service.
- If you wish to have the Aleph Linux environment installed on your (CERN) PC, please contact Joel Closier.
VMS operating system
- OpenVMS Alpha
(Currently V7.1, Fortran compiler V6.2)
- Private Aleph machines at CERN
- ALWS
is a VMS cluster for interactive and batch work.
- FALCON is part of the Online cluster and is dedicated to event reconstruction.
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