
dvodist manages the parallel distribution of DVO databases.  The basic
concept of the parallel DVO system is that the spatially distinct
tables (the 'catalog files', ie, the cpt, cpm, cps, cpn tables) are
distributed to a set of remote hosts.  Operations which interact with
those tables fork remote jobs on those remote hosts, perform a local
operation on the relevant tables, and return results to the main dvo
programs.  

dvodist is used to ship the tables out to the remote hosts, pull them
back together to the central host, or make copies for backup.

Currently, this program is implemented to use its own remote copy
process, which is not very effective.  I would like to switch it to
use rsync for the actual copies.  

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new mode: dvodist -duplicate

