Debugging & Optimization
TotalView
The TotalView debugger is a tool that lets you debug, analyze, and tune the performance of complex serial, multiprocessor, and multithreaded programs. For more information, see the TotalView page in the general support software section.
Cray PAT
Cray PAT is a profiling tool. More information can be found on the Cray PAT page.
I/O Tips
The I/O tips page provides guidelines for optimizing I/O for XT.
Software Optimization Guide for AMD64 Processors
Guidelines for serial optimizations specific to AMD Opteron can be found on the AMD site in the Software Optimization Guide for AMD64 Processors.