Submitting an interactive job – Save time by queuing once and running multiple times.
Using VNC with a Debugger – when displaying an X11 client (e.g., DDT) remotely over the network, interactive response is typically slow. Using the VNC server can often help you improve the situation.
Debugging Tools
Arm Forge (formerly Allinea DDT) – a full-featured GUI-based debugging tool supporting scalar, multi-threaded, and large-scale parallel applications.
ATP – Cray’s Abnormal Termination Processing can generate a merged stack backtrace if your program dies.
STAT – Generate a merged stack backtrace snapshot while your run is in progress. Useful to diagnose deadlock.
lgdb – Provides a command-line interface for debugging a parallel application with gdb (the GNU Project Debugger).
Common Debugging Issues
Determining Memory Use – learn how to use the glibc mallinfo call to get information on used/available memory in your code.