A unit (16), computer readable medium and method for automatically providing processing elements allocation in a network (14) for a droplet of a user (10) based on a request (30) of the user (10). The method includes receiving at the unit (10) of the network (14) the request (30) that includes at least a required condition or a preference related to the droplet; processing at the unit (16) the request (30), based on various known characteristics of the network (14); and automatically mapping processing elements (82) of the network (14) to the droplet such that an output of the processing step includes the processing elements allocation for the droplet and complies with the request.