Pgdbg
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PGI Debugger (pgdbg)[edit]
What is Pgdbg ?[edit]
For the most of the C, C++, or Fortran 77 codes one can use a regular GNU debugger such as GDB. However, the Fortran 90/95 programs are not handled very well by the GDB. The Portland Group has developed a debugger called pgdbg which is more suited for such codes. Pgdbg is provided in two modes: a graphical mode with the enabled X11 forwarding or a text mode. Pgdbg can be used to debug codes with MPI-parallel, OpenMP thread-parallel, or MPI-OpenMP hybrid instructions.
Preparing your application[edit]
Switch to PGI compiler[edit]
Load the appropriate PGI compiler. For example, for PGI 17.3:
[name@server ~]$ module load pgi/17.3
Compile your code[edit]
To be able to debug with pgdbg you first need to compile your code with debugging information enabled. With the pgdbg you do so by adding a debugging flag "-g":
[name@server ~]$ pgcc -g program.c -o program