Laboratory computer
systems range from typical desktop to high performance clustered
symmetric multiprocessing (SMP) systems.
As of November 2002 the laboratory's server room was home to:
101 Intel CPUs
41 Sun UltraSparc CPUs
5 SGI/MIPs R10000 CPUs
9 SGI/MIPs R14000 CPUs
1 IBM RS6000
4 DEC Alpha CPUs.
1 DEC VAX 4400
Total memory across all systems is approximately
112 GB.
Server room operating systems include:
Digital OSF/1
Digital OpenVMS
SGI Irix
IBM AIX
SUN Solaris
Microsoft NT server
Redhat Linux
Turbo Linux server
That's eight different multi user/multi tasking operating
systems and 6 systems architectures
Systems
are interconnected via internal switched 10/100Mbit/sec 622 MHz Ethernet
network. The Lab's HPCC consist of over 150 CPUs, primarily Intel
Pentium IIIs and SUN UltraSPARC II, with over 8 different types of
operating systems (mostly UNIX). The bulk of the HPCC is based on
SMP (2-4 cpus) systems with large memories and large scratch local
storage.
Sun Grid Engine software, formerly known as Codine
is used to manage the user environment on both the SUN cluster and
the Intel cluster. Sun Grid Engine (SGE) allows the user to submit
a job then pretty much forget about it.
SGE features:
Batch queuing
Load balancing
Job accounting statistics
User specifiable resources
Fault tolerant -- jobs rerun if execution host fails
Suspend/resume jobs
Job status
Host status
Cluster-wide resources
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