Pgdbg: Difference between revisions
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=PGI Debugger (pgdbg) = | =PGI Debugger (pgdbg) = | ||
== What is Pgdbg ? == | == What is Pgdbg ? == | ||
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 [https://www.pgroup.com/products/tools.htm/pgdbg.htm pgdbg] which is more suited for such codes. | 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 [https://www.pgroup.com/products/tools.htm/pgdbg.htm 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 == | |||
=== Switch to PGI compiler === | |||
Load the appropriate PGI compiler. For example, for PGI 17.3: | |||
{{Command|module load pgi/17.3}} | |||
=== Compile your code === | |||
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": | |||
{{Command|pgcc -g program.c -o program}} | |||
Revision as of 17:38, 7 September 2018
This is not a complete article: This is a draft, a work in progress that is intended to be published into an article, which may or may not be ready for inclusion in the main wiki. It should not necessarily be considered factual or authoritative.
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