AN INVESTIGATION OF DATA REUSE ON THE CRAY S-MP SYSTEM-500

The Gray S-MP is a multiprocessor computer architecture; processors ha ve a local data cache and have access to a main shared memory. In orde r to reduce the overheads associated with accessing main memory it is beneficial to maximize the reuse of data stored in cache. This report describes some data reuse refinements of a smoothing operation (used t o obtain an approximate solution to a PDE problem) and the results of implementing them on the Gray S-MP.