Dear members, I'm currently developping some code for automatically deploy code onto various parallel architecure and stumbled upon the following design problem. I need to be able to send an arbitrary complex data structure (or array of data srtuctre) through some parallel communications services. As my tools aims for simplicity of use, I use a programming model in which all transfered data are marshalled into a some serializable form. Using boost::MPI allowed me to use Boost::serialize to ake care of this problems, solving it for the classic MIMD cluster platform. I managed to adapt this for multi-core/multi-processor by using some concurrent queue to simulate message passing interface between threads. My next problem is to port this tools onto the Cell Processor. On one hand, i got all the DMA mumbo-jumbo cleared out into a tight template library that make them MPI call. Now my question is the following. Considering I can't use STL or any compiled boost library on the Cell SPEs due to memory constraints, which is the best solution to use or reuse boost:mpi or boost:serialize to be able to build a function that take a serializable class, marshall it into a raw byte array so I can pass it to my DMA transfer functions ? Is there any internal of either boost::mpi or serialization that can be accessed and used ? Thanks in advance. -- Joel FALCOU Research Engineer @ Institut d'Electronique Fondamentale Université PARIS SUD XI France