ACC's Computing Resources

This page summarizes ACC's centralized computing resources at CLASSE

If you need to contact someone for help, please see the Getting Help section.

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Operating Systems and Architectures

On Linux, uname -m will tell you the architecture, and cat /etc/redhat-release will tell you the operating system.

Network and System Layout

italics = gigabit

Public

Servers and Interactive Nodes

Node name	network connection	function	details	Location
accserv		64-bit SL6.5 Repository & Libraries server. Do not run processing jobs on this machine!	/nfs/acc/libs, https://accserv.classe.cornell.edu/svn/	W221	edit
accfs		Primary Fileserver Experimental Disk Backup	/nfs/acc/user, /nfs/acc/temp /nfs/acc/srf /nfs/ac/cesrtacam /nfs/cesrta	CLASSE Cluster in W221	edit
lnx6166 (cesrbuild)	hps16 port C2	linux build system		LEPP Trailer Computer Room	edit
lnx498 (ilc201)	hps76 port 8	interactive compute node		LEPP Trailer Computer Room	edit
lnx4124 (ilc202)	hps54 port 7	interactive compute node		LEPP Trailer Computer Room	edit
lnx6153 (ilc203)	hps54 port 19	interactive compute node		LEPP Trailer Computer Room	edit
lnx201		general use login node use for daily work, and to launch interactive and batch jobs in the Compute Farm			edit
lnx4200		BMAD development		EM107	edit

Farm (172.16.)

Node name	network connection	function	details
lnx1625	hps50-f1 port	NOT part of linux compute farm	has AMD CPUs which produce different results from Intel CPUs	edit
lnx1626	hps50-f1 port B23	part of linux compute farm	General purpose CESR build and processing machine	edit
lnx301-lnx305 and lnx313-lnx324	hps50-f1	part of linux compute farm	CESR members are allowed up to 2 interactive jobs on each of these machines. Please use the top program to make sure that no more than 2 CESR jobs are running. These machines are rather isolated from the lnx209 server, so linking and I/O intensive use of these machines is discouraged.	edit
ilc3[01-11]	hps50-f1	part of linux compute farm		edit
ilcsim (lnx11a)	hps50-f1 port C14	simulation disk server	/nfs/ilc/sim[1-3]	edit
ilc204 (lnx16511)	hps50-f1	interactive compute node		edit

A number of other Linux nodes are available via the GridEngine batch queues for running production jobs.

CESR Private (192.168.1.)

The CESR Linux Control System Cluster

The CESR Linux Control System cluster provides clustered file systems and high-availability services using the Red Hat Cluster Suite. All members have connections to both the CESR Private and CESR BPM subnets. See CesrHAC for more information.

Servers and Interactive Nodes

Node name	network connection	function	details	Location
cesr3001-7		Control System Workstation		W201	edit
cesr3101-4		Control System Workstation		W207	edit
cesrW3105		Control System Windows Workstation	Sync Light fremegrabber	W207	edit
cesrW3106		Control System Windows Workstation	replacement framegrabber	W207	edit
cesrW3107		Control System Windows Workstation	Vacuum Monitor Kiosk	W207	edit
cesr3201		"Xterm"		W101	edit
cesr3301				North Area Spur	edit
cesr201		interactive control system development node		W221	edit
cesr202		interactive control system development		W221	edit

Linux Consoles

All linux consoles are running SL6.5. They auto-login to local user accounts and are only used as displays (windows appear from remote systems). They are also known as the "Grinnel replacement". In general, they are not used with a mouse or keyboard.

Node name	network connection	function	details

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Software Versions

The primary Linux server and desktop operating system in use the in the lab is Scientific Linux (SL) which is assembled jointly by Fermilab and CERN as a standardized experimental environment. It is based on Red Hat Enterprise Linux. CLASSE currently deploys SL6.5 unless otherwise noted.

• ACC Software Version Table

VMS/Linux Shared Disk

• Information on the cesr_mnt directory structure

Backups

See BackupSchedule for a list of Linux, Dec-Alphas (Unix), VMS, and Solaris systems we currently backup.

See WindowsBackupSchedule for a list of the Windows systems we currently backup.

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Please contact theCESR Code Librarian with questions or problems about this page.