The pdbx debugger provides an attach feature, which allows you to attach the debugger to a parallel application that is currently executing. The debugger attaches to any subset of tasks without restarting the executing parallel program.
Parallel applications run on the partition managed by poe .
After you invoke the debugger in attach mode, it displays a list of tasks you can choose. The debugger obtains this information by reading a configuration file created by poe when it begins a job step. At this point you must choose a subset of that list to attach the debugger. Once you make a selection and the attach debug session starts, you cannot make additions or deletions to the set of tasks attached to. It is possible to attach a different set of tasks by detaching the debugger and attaching again, then selecting a different set of tasks.