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PGDBG is a powerful and simple tool for debugging both MPI-parallel and OpenMP thread-parallel Linux applications. It is included in the PGI compiler package and configured for OpenMP thread-parallel debugging. | PGDBG is a powerful and simple tool for debugging both MPI-parallel and OpenMP thread-parallel Linux applications. It is included in the PGI compiler package and configured for OpenMP thread-parallel debugging. | ||
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. | |||
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. | = Quickstart guide = | ||
== Environment modules == <!--T:3--> | |||
Before you start profiling with PGDBG, the appropriate [[Utiliser des modules/en|module]] needs to be loaded. | |||
PGDBG is part of the PGI compiler package, so run <code>module avail pgi</code> to see what versions are currently available with the compiler, MPI, and CUDA modules you have loaded. For a comprehensive list of PGI modules, run <code>module -r spider '.*pgi.*'</code>. | |||
<br>As of December 2018, these were: | |||
* pgi/13.10 | |||
* pgi/17.3 | |||
Use <code>module load pgi/version</code> to select a version; for example, to load the PGI compiler version 17.3, use | |||
{{Command|module load pgi/17.3}} | |||
== Preparing your application == | == Preparing your application == | ||