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• delicatearch
• marchingmen
• tunnelarch
• landscapearch
• sanddunearch
• telluride

This FAQ addresses several questions commonly answered by the CHPC Service Desk. For more information, please look in the online user guides:

• Arches Opteron Cluster (delicatearch, marchingmen, tunnelarch)
• Statistics Workstation

If you have any questions which are not addressed in this page or the user guides, please either send e-mail to issues@chpc.utah.edu or call (801) 581-6440 to speak with a CHPC staff member.

Contents

General

1. How do I get help?
2. What software is available?
3. How do I subscribe/unsubscribe to the mailing list?
4. How should I set my email properties?
5. How do I time my programs?
6. I'm a UNIX user and now have a Windows desktop. How do I connect to CHPC systems and use X-Windows programs?
7. How do I change my password?
8. How do I change my shell?
9. Are there default .tcshrc and .bashrc files available?
10. Do the /scratch/filesystems on arches support file locking?

Accounts

1. How do I get an account?
2. I can't log into one or more the machines, what do I do?
3. I forgot my password, what do I do?
4. How do I get an account deleted?
5. How do I get my files backed up?

Allocations

1. How do I get an allocation?
2. When are proposals due?
3. When do allocations take effect?
4. What should I do if my allocation runs out?
5. How should I acknowledge CHPC for computer time?
6. What if a machine goes down while I'm running a job? Does the time that the job ran prior to termination count toward my allocation?

Batch Systems

1. What is a batch system?
2. What batch system is used at CHPC?
3. What is a Scheduler?
4. What Scheduler is at CHPC
5. How do I submit a job?
6. How do I get information about my job after it's submitted?
7. Where can I find a list of batch system commands?
8. Are there sample scripts online?
9. What is the /scratch directory that I see in the sample script, and why should I use it?
10. Where should I submit my script from?
11. Is there a limit on the number of jobs I can have in the batch system at one time?
12. How can I run a job which is longer than the standard queues allow?
13. Are there limits on the number of cpus I can use for parallel jobs?
14. Why do some jobs submitted after mine run before mine?
15. Can I run my jobs in the background in batch?
16. I'm having problems with my script, what should I do?
17. What happens when my allocation runs out?
18. PBS seems to be ignoring all the #PBS directives in my script. What's going on?

Programming

1. How do I compile a Fortran or C program?
2. Where do I find tools and information on parallel programming?
3. What debugging tools are available?