Hi! The CMS (Cell Messaging Layer) is a function collection, wherewith you can provide spu with parallel communications. I never user it, just read about this technology. I read this fact that, in CMS function environment just the synchronized communication is allowable, you can't programming the CMS asynchronized way.
Here is a link, where you can find lot of important information, and "HelloWorld" example program in CMS. http://sourceforge.net/docman/display_doc.php?docid=86274&group_id=219123 Best Regards, Attila Borcs