User Guide for the IBM p575 cluster (hydra)

Last Update on June 05, 2008 3:35 PM

This user guide is under development. Any feedback concerning this user guide is welcome.

• Accounts
• Acceptable Use Statement
• Access
• Accessing hydra from UNIX based machines
• Accessing hydra from Windows based machines
• Basic System Information
• System Messages of the Day
• Help
• Basic UNIX Commands
• General Comments, Caveats, & Recommendations
• Login & Interactive Environment
• Login Environment
• Interactive Processing
• Viewing Man Pages
• Startup Files
• Application Environment
• Modules
• Additional Information
• File Space
• Allocation Areas & Quotas
• Policies
• Common File Commands
• Display disk space allotments: myquota
• Display files and directories: ls
• Recursively display disk usage for directories: du
• Locate files in a directory tree: find
• Protection & File Security
• Alter permissions to files and directories: chmod
• Additional Information
• Compiling & Running Programs
• Accessing the Compilers
• Serial Programs
• OpenMP Programs
• MPI Programs
• Additional Information
• Debugging
• Batch Processing (LoadLeveler)
• Useful LL commands
• Job Files
• Job Submission
• Common LL Environment Variables
• Queue Configuration
• Special Queues
• Task Distribution Across Nodes
• Policies and Best Practices
• Setting Appropriate Resource Limits
• Valid/Invalid Parallel Batch Jobs
• Batch Job Termination
• Queued Jobs Not Executing
• Jobs Using Files from the Tape Archive
• Known Problems
• Proper LL batch job scripts
• Proper startup scripts
• Profiling
• Floating-Point Exceptions
• Math Libraries
• Engineering Scientific Subroutine Library: ESSL
• Parallel Engineering Scientific Subroutine Library: PESSL
• Additional References
• Architecture
• Archiving
• IBM Documenation and References