Site Report GSI

● GSI● Computing @ GSI ● Linux-Farm

Walter Schön, GSI

Gesellschaft für SchwerIonenforschung - GSI

● Basic Physics Research– Heavy Elements (110: Darmstadtium, Ds.....)– Atomic Physics – Nuclear Matter (EOS, strangeness)– Hadron Physics (restauration of chiral

symmetry....)– Future Projects (radioactive beams, cooled

antiproton beams, compressed baryonic matter, plasma physics)

● Therapy Project– Cancer Therapy with C-beam

Walter Schön, GSI

Operating Systems @ GSI

● about 700 boxes with Windows, mostly Desktop, some slow control

● about 350 boxes with LINUX, Desktop, Simulation, Data Analysis, Development, DAQ

● about 40 boxes with AIX, Medical Therapy, Central Services, Desktop, Construction

● about 60 boxes with VMSAccelerator control & Development, Desktop, central service

● about 20 boxes with LynxDAQ

● some boxes with solarisChip-Design, medical Therapy

● some exotic stuff ( Mac, BSD, .....)Desktop Publishing, Development

Walter Schön, GSI

● Computing @ GSI– Theoretical Models ( LINUX -Cluster)– Simulation of experiments (LINUX-Cluster)– Data Analysis (Linux-Cluster)– Control of accelerators, experiments (VMS ->

Linux ?)– Printing, DNS, WEB, MAIL... (AIX, LINUX, NT/Win2k)– Desktop (NT, LINUX, AIX, VMS, XP)– “special applications”: Solaris– Backup, Archive: TSM

Walter Schön, GSI

The Linux-Farm @ GSI powered by DEBIAN ....

● The interactive LINUX Farm: – about 200 Computers as Desktop systems

(GSI wide login possible, distributed @ whole GSI)

– 8 Dual Xeon boxes 2HE rackmount in computing room

– central administration – central system

Walter Schön, GSI

● The GSI Batch Farm: – about 200 CPUs – 60 Dual Xeon (Hyperthreading activated), 2 HE

rackmount, 2 GB ECC RAM– 45 Dual Pentium III, mini-tower , 1GB ECC RAM – organised by LSF, ver. 5.x– fully integrated in the LINUX Farm, no

interactive sessions possible– access restricted to 1 batch jobs per CPU

Walter Schön, GSI

Linux Farm

file server/usr/local

groupserver Asystem

clienta1

clientan

clienta2 .......

groupserver Bsystem

clientb1

Walter Schön, GSI

......

/tmp/var/home

bootserver

Central File Server●element of the LINUX farm●location: central computing hall●10 x 4 HE 19 “ Dual CPU Pentium III rackmount● GB ethernet●2 TB central home file system on scsi RAID level V●10 TB data file system on ide-scsi RAID level V●exports via nfs●central backup via TSM

Distributed File Server●element of the LINUX-Farm●location: distributed●about 70 midi Tower Pentium III,IV ●100 MB ethernet●about 700 GB distributed /home/user, /data/group●export via nfs ●central backup via TSM

Near Future:

● HA-Solution for central File Server (status: beta test)

● migration from AIX -> LINUX ● more boxes for the LINUX batch-farm

Walter Schön, GSI