ISyE General Use UNIX Resources
Problem:
What UNIX resources are available to me if I have an ISyE UNIX account?Solution:
This page details the central UNIX command line resources available to all ISyE faculty and graduate student users.
Interactive Shell Access
The general-use interactive UNIX server for ISyE is
castle.isye.gatech.edu
Login access to the machine is accessible only by ssh2; telnet requests will not be answered.
This can be done using SecureCRT from a Windows PC, or from the UNIX command line using ssh.
Castle is a four-CPU Sun E450 server that can handle many simultaneous users.
This server should be used for checking email, reading newsgroups, writing scripts and software, and other tasks where users need access to a UNIX command line environment. Castle should not be used for running compute jobs lasting more than a few minutes due to the impact on other users. See the Compute Resource Access section below for the appropriate places to run compute jobs.
Castle has a very large set of software installed. These include X applications, which if needed can be exported to local UNIX or Linux displays by using the -X option of ssh, e.g.:
ssh -X
username@castle.isye.gatech.edu
Compute Resource Access
There are currently two sets of Sun compute servers available to the general user population with more resources anticipated in the near future.
- two Sun 280R's named mangonel1 and mangonel2, each with 2x900MHz UltraSparc-III-Cu CPU's and 2GB RAM
- two Sun V480's named scepter1 and scepter2, each with 4x900MHz UltraSparc-III-Cu and 16GB of RAM
- 16 Linux nodes, each with 2x2.4GHz Xeon CPUs and 2GB RAM -- these require a separate account, email helpdesk@isye.gatech.edu for access
These compute servers can be accessed interactively via ssh2 and jobs can be run interactively. Eventually, as more compute servers are put into place, interactive access will be replaced with a batch job submission system to allow many users to efficiently use the machines by distributing jobs evenly across all resources.
The Sun compute machines have at a minimum the following software available to users (general paths in parenthesis):
- Sun Forte HPC C, C++, and Fortran compilers (/opt/SUNWspro)
- Gnu C/C++ compilers (/usr/local/bin)*
- ILOG CPlex, AMPL, Solver, and other applications (/usr/local/ilog)
- Matlab (/usr/local/matlab)
- splus (/usr/local/splus)
- Sun Java2 SDK (/usr/bin)
- NAG mathematical libraries (/usr/local/nag)
* For most computational applications on the Sparc
platform, the Sun Forte compilers produce much faster code than the Gnu compilers.
A threefold performance difference is common.
The Linux compute machines have at a minimum the following software available to users (general paths in parenthesis):
- Gnu C/C++ compilers (/usr/local/bin)*
- ILOG CPlex, Concert, Solver, and other applications (/usr/local/cplex)
- Matlab (/usr/local/matlab)
- R (/usr/local/R)
- XPressMP (/usr/local/xpressmp)
