Is there a specific place/thread/forum for discussions on this topic? I wish to start this type of work at home. The initiator was Parellalla by Adepteva but their project did not succeed. Now I am looking at the Raspberry Pi Turing board. The first production run is apparently sold out and the second run not yet scheduled.
Do you know of anywhere else to turn for conversations and hardware? Maybe a specific topic group here that I have not recognized?

Any suggestions for projects for parallel processing from the truly trivial to somewhat more complex? But not those that require thousands of CPUs. The number crunching for the Mandlebrot set is trivial and good for a first project. Going up in complexity a simulator for orbiting planetary systems with stars, planets, etc, is probably a third or fourth level project requiring significant inter-processor communications? Any thoughts for a good second level project?