Supercomputers
8 processor SGI Origin300 (chmsgi.chem.tamu.edu)
192-core SGI Altix 450 (medusa.chem.tamu.edu)
32-processor IBM Regatta p690 (agave.tamu.edu)
64-processor SGI Origin3800 (k2.tamu.edu)
128-processor SGI Altix 3700 (cosmos.tamu.edu)
640-processor IBM p575 (hydra.tamu.edu)
MEDUSA
More about Medusa
Altix450
Medusa is a cluster of 3 64-core Altix 450 machines with Itanium2 montecito dual core cpus housed in two tall racks and connected via gigabit ethernet. It is installed and running but is still undergoing configuration.
CHMSGI
SGI Origin 300
chmsgi is an 8-processor SGI Origin 300 that is used as a server for advanced molecular modeling programs and as a computational platform for MM/MD, semi-empirical and quantum chemical calculations used in research and training.
To obtain an account on chmsgi, you will need to contact
Lisa M. Pérez
To run jobs on chmsgi you will need to use the queueing system PBS. There is a 30 minute time limit for interactive jobs.
To use the queueing system (PBS, LSF, or LoadLeveler) on most of the supercomputers, the LMS provides an easy to use t-shell/bash script (qprep) for Gaussian 03 calculations that will prepare job files for you
and submit them to the queue of choice. For more information or to download qprep, visit the Utilities
link. Qprep can be modified to submit jobs for other programs.
CYCLOPS
Cray J90
CYCLOPS was decommissioned in 2006 after 12 years of faithful service
The Cray J90 is a 16 processor Y-MP compatible system. Each vector based CPU is rated at 200 MegaFLOPS, yielding combined 3200 MegaFLOPS
computation speed. The main memory is 4 gigabytes (512 million 64-bit words) of dynamic RAM.
The J90 is configured with 108 Gigabytes of disk space. Cray uses units such as clicks, words, and megawords to measure memory size. For
example, 1Gb (gigabyte) is referred to in Cray terminology as 128 MW (megawords), and 4096 bytes as 1 block, or 1 click, or 1 sector.
Hostname: cyclops.tamu.edu
Vendor: Cray Research Incorporated
Model: Cray J90 (J916)
Processor: Y-MP Compatible Microprocessor
Processor Clock Rate: 100 MHz (10 nano-second)
Processor Integer Speed: 100 MIPS
Processor Floating Speed: 200 MegaFLOPS
No. of Processors:16
Main Memory: 4 Gigabytes
Memory Kind: Dynamic RAM
Disk Space: 108 Gigabytes
Disk Controller Type: SCSI
No. of Controllers: 6
Network Interface: FDDI
Interface Data Rate: 100 Megabits/second
