Another thought.

Map-D is said "an in-memory column store" on GPU. [*]  This brings me a
question.

What is the best way to hold Nupic data...  It must depend on the use case
of Nupic.  In-memory DBs for data analytic tends to use columnar store like
new SQL Server.  Flash based store tends to be log-structure like RocksDB.
 HDD based store tends to be FS-like or page-like structures with search
trees and block groups.

It might be nice to have a clear separation in Nupic source tree for
storage.  So, it can be pluggable.  Is this nupic.core? or nupic?
 (probably nupic...)


[*] http://www.map-d.com/technology/
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