In this paper, we describe the handling of channel structures in Eden. Channel structures are crucial for achieving the exibility and compositionality that is one of the most important aims of Eden. We show alternative mechanisms for treating them and explain why it has been decided to admit the dynamic splitting of channel structures as a feature of the language. The modelling of this in the o...

e observation that parallel processing inevitably runs into issues managing data movement is hardly new. e old joke “a supercomputer is an expensive device that transforms a compute-bound problem into an I/Obound problem” now has a new variant: “a manycore processor is a device that transforms a compute-bound problem into a memory bound problem.” As we enter the multicore and manycore era, data...