1. A method for creating and managing affinity between memory and processors in logical partitions in a data processing system, said data processing system including a plurality of processors and system memory, said method comprising the steps of: assigning ones of said plurality of processors to a particular one of said logical partitions; allocating regions of said system memory to said particular one of said logical partitions; and said allocated regions of said system memory having a close affinity to said ones of said plurality of processors.