1. A computer apparatus, said computer apparatus comprising, a first processor, said first processor having first memory associated therewith; a second processor, said second processor having second memory associated therewith; a first job, said first job having first threads; and a grouping mechanism that groups two or more of said first threads such that they are contained in a group, said two or more threads being grouped independently of their association with said job, said group being used to provide processor affinity for threads contained therein, said processor affinity being applicable to said first processor or to said second processor.