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Feature: Migratablelun #3589

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Feature: Migratablelun #3589

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Commits on May 7, 2023

  1. Test routine for the MigratableLUN module. 

    Does a simple factorial computation differentiated by rank.  Triggers LB.
Does more iterations, then has each rank read the output of the next
higher rank and check that the values are correct.

So if something went wrong with the output process during migration, we
hope to trip over it by checking every line of every output file.
    @ericjbohm @evan-charmworks
    ericjbohm authored and evan-charmworks committed May 7, 2023
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  2. Change API to use AMPI_LUN prefix for namespace disambiguation. 

    Add AMPI_LUN_open as wrapper for register+open
    @ericjbohm @evan-charmworks
    ericjbohm authored and evan-charmworks committed May 7, 2023
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  3. Add LUN virtualizer 

    the AMPI_LUN function returns the virtualized version of any LUN

see virtluntest.f90 for an example of usage, as it replaces
the manual LUN virtualization scheme used in luntest.f90
    @ericjbohm @evan-charmworks
    ericjbohm authored and evan-charmworks committed May 7, 2023
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