[ofa-general] PATCH [0/3] osm: adding root and compute node guid files options for fat-tree

[Yevgeny Kliteynik]

Hi Hal.

The following three patches are adding root and compute node guid files
options for fat-tree routing, reading these files in fat-tree, and
taking care of non-compute nodes when creating fat-tree order file.

[1/3] Added two options:
        ftree_root_guid_file - file that contains list of root guids
        ftree_cn_guid_file - file that contains list of compute node guids
      For now, these options are exposed via options file only.

[2/3] Fat-tree routing reads root guid file and compute node guid file,
      and creates map of roots and compute nodes (CNs) to be used later.

[3/3] Non-CNs are treated as "dummies" when creating fat-tree order file,
      because they are not participating in the MPI all-to-all communication.

-- Yevgeny