Allegro CL as a client of Quintus Prolog

[Arnold Smith <smith%cam.sri.com@ai.sri.com>]

I am attempting to piece together a facility for allowing inter-process
communication between an Allegro CL process and one or more
(natural-language processing) processes written in Quintus Prolog.  In
server/client terms, the server is Lisp and the clients are Prolog.
Alternatively Prolog is master and Lisp is slave.  The environment is Sun
Unix, and the processes should be able to run on the same or different
machines.

Has anyone already solved this problem?  Quintus provides part of a
solution in its IPC library, but not all of it...