What: Add a MCA-NULL option to open no components in mca_base_open()Why: Sometimes we do not want to open or select any components of a framework.
Where: patch attached for current trunk. When: Needs further discussion. Timeout: Unknown. [May 13, 2008 (After teleconf)?]
Short Version: -------------- This RFC is intended to continue discussion on the thread started here: http://www.open-mpi.org/community/lists/devel/2008/05/3793.phpDiscussion should occur on list, but maybe try to come to some settlement on this RFC in the next week or two.
Longer Version: ---------------Currently there is no way to express to the MCA system that absolutely no components of a framework are needed and therefore nothing should be opened. The addition of a sentinel value is needed to explicitly express this intention. It was suggested that if a 'MCA-NULL' value is passed as an argument for a framework then this should be taken to indicate such an intention.
mca-null.diff
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