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<h1><span class="section-number">12. </span>Debugging Open MPI Parallel Applications<a class="headerlink" href="#debugging-open-mpi-parallel-applications" title="Permalink to this heading"></a></h1>
<p>Debugging a serial applications includes solving problems like
logic errors, uninitialized variables, storage overlays and timing
problems.</p>
<p>Debugging a parallel application can be further complicated
by problems that can include additional race conditions and aysynchronous
events, as well as understanding execution of multiple application
processes running simultaneously.</p>
<p>This section of the documentation describes some techniques that can
be useful for parallel debugging. This section also describes some
tools that can be useful as well as some Open MPI runtime options
that can aid debugging.</p>
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<li class="toctree-l1"><a class="reference internal" href="debug-tools.html">12.1. Parallel Debugging Tools</a></li>
<li class="toctree-l1"><a class="reference internal" href="debug-options.html">12.2. Open MPI Runtime Debugging Options</a></li>
<li class="toctree-l1"><a class="reference internal" href="serial-debug.html">12.3. Using Serial Debuggers to Debug Open MPI Applications</a></li>
<li class="toctree-l1"><a class="reference internal" href="parallel-debug.html">12.4. Using Parallel Debuggers to Debug Open MPI Applications</a></li>
<li class="toctree-l1"><a class="reference internal" href="lost-output.html">12.5. Application Output Lost with Abnormal Termination</a></li>
<li class="toctree-l1"><a class="reference internal" href="memchecker.html">12.6. Using Memchecker</a></li>
<li class="toctree-l1"><a class="reference internal" href="valgrind.html">12.7. Using Valgrind to Find Open MPI Application Errors</a></li>
<li class="toctree-l1"><a class="reference internal" href="mpir-tools.html">12.8. Using MPIR-based tools with Open MPI</a></li>
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