Roman,

> There are also other implementations of Group Communication
> Toolkits, and Spread is not the best one, only that is the only one
> that I know that is written in C/C++. I would wonder if it were
> possible to compile JGroups with gcj to a lib file, as Lucene
> people did to their engine.

Would you have time for a quick compare&contrast of JGroups, Spread
and Ensemble? No new research, just what you remember from 5-6 years
ago. Obviously JGroups is Java, Spread is C and Ensemble is OCaml and
the range of features in the API differs. Beyond that, major
differences in the algorithms used? Major differences in speed,
throughput and code size? Do all use UDP/IP as basic transport?

Am I missing popular choices with the above three?

Paul

PS Two beers!