Failed to Start a Parallel HPC Application Debugging Task

Symptom

A parallel HPC application debugging task fails to be started.

Figure 1 Failed to start debugging (1)

Figure 2 Failed to start debugging (2)

Possible Causes

• You have not granted the Linux user the read, write, and execute permissions for the directory where the MPI application is located.
• During parallel HPC application debugging in the same session, the current Linux user fails to start debugging. When the current Linux user is switched to another Linux user for debugging, the log folder of the current Linux user is not cleared. As a result, the debugging task fails to be started.

Procedure

• For symptom 1: Grant the Linux user the read, write, and execute permissions for the directory where the MPI application is located.

  1	chmod 700 -R directory_name

• For symptom 2: Manually delete the log folder of the current Linux user.

  Search the DevKit installation path for the DevKit/logs/debugger/debugger.log file, search the file for "Mpirun temp log file" to determine the path of the current Linux user log folder, and delete the folder.