Posted March 20, 2002,19:41
Institution: Daresbury Laboratory
The regular partitioning of grid based finite difference models for distribution onto parallel processors leads to a characteristic nearest neighbour boundary exchange communications pattern. In general the data structures to be exchanged are not contiguous in memory. OCCOMM is a low-level communications kernel benchmark which determines the performance of various message passing techniques applied to contiguous, single-strided and double-strided data structures, commonly found in ocean, and other regular grid based, models.