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parameters. These are intended to be used by the system itself for passing information around, and are not generally intended for the user to see or modify. Hence, we flag them as "internal" which causes them not to show up in the ompi_info output (by default). This "security through obscurity" is good enough -- it's really only intended to keep casual observers away. The MCA parameters are still there and are still settable (if a developer wants to set them). To mark an MCA parameter as internal, simply call mca_param_set_internal() with its index. I debated about adding a flag to mca_param_register_[int|string](), but then would have involved changing a *lot* of code throughout the base -- and internal MCA parameters is certainly not the common case. Note that you can provide the new ompi_info flag --internal in conjunction with the --param flag to force it to also show all the internal MCA params. This commit was SVN r4373.
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This is the world's greatest MPI.
...more to write here
should be a short file, referring to the real docs.