Hydra User Guide

• Basic System Information
• General Comments, Caveats, & Recommendations
• Accessing TAMU Supercomputing Machines
• Login & Interactive Environment[+]
  • Interactive Processing
  • Login Environment
  • Viewing Man Pages
  • Startup Files
• Filesystems and Quotas[+]
  • Allocation Areas & Quotas
  • Policies
  • Common File Commands
  • Protection & File Security
  • Additional Information
• Compiling & Running Programs[+]
  • Using the Compilers
  • Serial Programs
  • OpenMP Programs
  • MPI Programs
  • Older AIX Compilers
  • Additional Information
• Debugging
• Batch Processing (LoadLeveler)[+]
  • Job Files
  • Job Submission & Monitoring
  • Common LL Environment Variables
  • Useful LL commands
  • Queue Configuration[+]
    • The Interactive Queue
    • The "smp_only" Queue
    • Special Queues
  • Example Job Files[+]
    • Example Serial Job File
    • Example OpenMP Job File
    • Example MPI Job File
    • Example Interactive Job File
    • Example Multi-Step Job File
  • Task Distribution for MPI Jobs
  • Policies and Best Practices
  • Additional Information
• Profiling[+]
  • Timing Methods
  • Profiling Methods
• Floating-Point Exceptions
• Math Libraries[+]
  • Engineering Scientific Subroutine Library: ESSL
  • Parallel Engineering Scientific Subroutine Library: PESSL
  • Additional References
• LittleEndian
• Advanced Cluster Architecture [+]
  • The Power5+ Processor
  • Simultaneous Multi-Threading
  • Node Architecture
  • Cluster Interconnect
  • HPS Protocol Stack
  • Cluster Storage
  • Performance Results
  • Cluster Configuration Summary
  • References
• Archiving
• IBM Documentation and References