4.8.5. CLI Options for required support libraries
configure command line options are for Open MPI’s
required support libraries
external: Use an external installation (rely on default compiler and linker paths to find it).
configurewill abort if it cannot find suitable header files and libraries.
internal: Use Open MPI’s internal/bundled copy.
No value specified: Try the
externalbehavior. If that fails, fall back to
internalbehavior. This is the default behavior.
DIR: Specify the location of a specific installation to use.
configurewill abort if it cannot find suitable header files and libraries under
--with-pmix-libdir=LIBDIR: See the configure CLI options conventions for a description of these four options.
--with-valgrind[=DIR]: Directory where the valgrind software is installed. If Open MPI finds Valgrind’s header files, it will include additional support for Valgrind’s memory-checking debugger.
Valgrind support is disabled by default in Open MPI. Enabling Valgrind support will eliminate a lot of false positives when running Valgrind on MPI applications. There is a minor performance penalty for enabling this option.