Developing Applications for a Heterogeneous Computing Environment

I n this paper w e a t t e m p t t o define the requirem e n t s f o r a softwa.re env ironi i ien t in wh ich developm e n t of appl ica t ions targeted f o r execu t ion in a he terogeneous hardware cmvironirient c a n take place. S o m e t 001s in ee t i n g t h es e requ ire in e n t s ha v e been de v e 1 oped at A r g o n n e N a t i o n d Laboratory , and we describe their f u n ct i o ri alit y . We a Is o describe s eve ral appl ica t ions tha t are curren t l y t ak ing advan tage of t hese tools.