Model name: CM2.4A18

Coupled climate model.

Notes: The throughput of this model is limited by the throughput of the FV-LL model, which runs on a lat-lon grid and is limited in scalability. The scalability is improved on shared-memory systems by using Persistent Shared-Memory Execution Threads (PSETs), a technology developed on the SGI-Altix platform, and currently being ported to the Cray-XT platform with assistance from Cray Research Inc.

Model name: C360-HiRAM

Coupled land-atmosphere model with ocean boundary conditions supplied by AMIP datasets.

Notes: The atmosphere is run on the cubed-sphere grid, This novel grid removes many scalability barriers associated with more conventional grids.