A Job Mapping Strategy for Heterogeneous Multiprogrammed Systems Piyush Maheshwari School of Computer Science and Engineering The University of New South Wales Sydney NSW 2052 Australia piyush@cse.unsw.edu.au Abstract Mapping and scheduling in multiprogrammed environment has re- cently attracted more attention of the researchers. Most of the past algorithms use the First Come First Serve (FCFS) strategy, using time- sharing, space-sharing or the combination of both. However, there are limitations when FCFS is implemented in a real system. In order to overcome those drawbacks, we propose a new scheme, called First Input First Output{Best Fit (FIFO-BF), which is used in a mapping policy, Adaptive Multiprogrammed Mapping (AMM). Taking heterogeneity into account, another mapping policy, Heterogeneous Multiprogrammed Map- ping (HMM), is presented. Due to its complex nature, little work has been done in this area.