Linux Networx PC-Farm Deimos (Outdated)¶
This page is deprecated! Deimos is a former system!
The PC farm
Deimos is a heterogeneous cluster based on dual core AMD Opteron CPUs. The nodes are
operated by the Linux operating system SuSE SLES 10 with a 2.6 kernel. Currently, the following
hardware is installed:
|AMD Opteron X85 dual core
|RAM per core
|Number of cores
|total peak performance
|single chip nodes
|quad nodes (32 GB RAM)
All nodes share a 68 TB on DDN hardware. Each node has per core 40 GB local disk space for scratch
/tmp. The jobs for the compute nodes are scheduled by the
batch system from the login nodes
Two separate InfiniBand networks (10 Gb/s) with low cascading switches provide the communication and I/O infrastructure for low latency / high throughput data traffic. An additional gigabit Ethernet network is used for control and service purposes.
Users with a login on the SGI Altix can access their home directory via NFS
below the mount point
The cluster is based on dual-core AMD Opteron X85 processor. One core has the following basic properties:
|floating point units
|128 bit x 200 MHz
The CPU belongs to the x86_64 family. Since it is fully capable of running x86-code, one should compare the performances of the 32 and 64 bit versions of the same code.