hive provides a component-oriented plugin-based framework and a GUI system for distributed computing. Please look at the project website for more detailed informations.
OSE is a C++ library, with some Python wrappers, containing generic classes, as well as support for event driven systems, interprocess communications and a request/reply, publish/subscribe service agent framework with RPC over HTTP interface.
The DataTime Process Framework is intended to support the processing of time-based data in a modular, concurrent, distributed and extensible manner. C++, using YARP, ACE, Qt and MUSCLE on Linux, OSX, Windows and Solaris.