On 12/14/2010 4:41 AM, David S. wrote: > Hi Timo, > I mean parallel cloud computing, do you have solution for this case? > There are many different meanings for terms like that. One is a set of resources that you can easily carve into virtual machines that then act like unrelated physical machines except for the ease of cloning and migrating them. Another is a scientific supercomputer that can solve certain types of problems with specialized libraries that can divide that task into work units that run on different hosts and collate the results. This tends to be limitied and difficult, so another approach is to use a scalable database where you push everything that needs to run in parallel into a 'map/reduce' function. That tends to be difficult by itself, and handled differently by the different implementations. If that's what you are interested in, I'd look at 'riak' first (http://wiki.basho.com/display/RIAK/Riak)and their comparisons to others to understand the tradeoffs in approaches. -- Les Mikesell lesmikesell at gmail.com