Please find out first about our general purpose policies.

Access to the parallel cluster nodes is allowed only by secure connections (ssh/scp) coming from a *.math.cmu.edu computer. Additional individual computers can be allowed upon owner's request.

Please do not use the nodes or gateways of the parallel cluster for e-mail, text editing, or web browsing. Those processor cycles may be needed by someone doing intensive computation. Please use the parallel cluster only to compile, debug, and run jobs.

When designing a huge job, please take into account that the computer may be rebooted from time to time; so make sure you save intermediate stages of your computation at least once a day.

Please keep the temporary local disk space (the /tmp directory) clean. Do not store there relevant files which are not in use. Any file from /tmp not accessed in the last 48 hours may be deleted by the system.

Please keep any large files you may want to store in the home directory compressed. A good compression is achieved using the "gzip filename" command. The decompression is done by "gunzip filename.gz". See the manual pages.

Please explore the processor and memory load of a computer before you start a big job. Use the command "top" on that computer. See the manual page.

Last updated: June 01, 2000.
Errors and suggestions to: Florin Manolache, e-mail: florin@andrew.cmu.edu