SARPA.DAC
DAC or Dynamic Agent Computation is sister project to SARPA. To be precise: its current backbone framework for SARPA. DAC is distributed, parallel model for efficient, balanced agent environment.
The framework is under development by commercial company SolDevelo and university research centre of Polish Science Academy. Current progress can be tracked at DAC website: http://www.dacframe.org.
DAC is generally Java-oriented, which gains multiplatform interoperability for the project but it is possible to attach agents more C-based.